Pull iov iter fix from Al Viro.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fix a braino in ITER_PIPE iov_iter_revert()
};
HiSilicon Hip06/Hip07 PCIe host bridge DT (almost-ECAM) description.
+
+Some BIOSes place the host controller in a mode where it is ECAM
+compliant for all devices other than the root complex. In such cases,
+the host controller should be described as below.
+
The properties and their meanings are identical to those described in
host-generic-pci.txt except as listed below.
Properties of the host controller node that differ from
host-generic-pci.txt:
-- compatible : Must be "hisilicon,pcie-almost-ecam"
+- compatible : Must be "hisilicon,hip06-pcie-ecam", or
+ "hisilicon,hip07-pcie-ecam"
- reg : Two entries: First the ECAM configuration space for any
other bus underneath the root bus. Second, the base
Example:
pcie0: pcie@a0090000 {
- compatible = "hisilicon,pcie-almost-ecam";
+ compatible = "hisilicon,hip06-pcie-ecam";
reg = <0 0xb0000000 0 0x2000000>, /* ECAM configuration space */
<0 0xa0090000 0 0x10000>; /* host bridge registers */
bus-range = <0 31>;
BPF (Safe dynamic programs and tools)
M: Alexei Starovoitov <ast@kernel.org>
+M: Daniel Borkmann <daniel@iogearbox.net>
L: netdev@vger.kernel.org
L: linux-kernel@vger.kernel.org
S: Supported
+F: arch/x86/net/bpf_jit*
+F: Documentation/networking/filter.txt
+F: include/linux/bpf*
+F: include/linux/filter.h
+F: include/uapi/linux/bpf*
+F: include/uapi/linux/filter.h
F: kernel/bpf/
-F: tools/testing/selftests/bpf/
+F: kernel/trace/bpf_trace.c
F: lib/test_bpf.c
+F: net/bpf/
+F: net/core/filter.c
+F: net/sched/act_bpf.c
+F: net/sched/cls_bpf.c
+F: samples/bpf/
+F: tools/net/bpf*
+F: tools/testing/selftests/bpf/
BROADCOM B44 10/100 ETHERNET DRIVER
M: Michael Chan <michael.chan@broadcom.com>
Q: http://patchwork.ozlabs.org/project/netdev/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
+B: mailto:netdev@vger.kernel.org
S: Maintained
F: net/
F: include/net/
F: include/linux/clk/ti.h
TI ETHERNET SWITCH DRIVER (CPSW)
-M: Mugunthan V N <mugunthanvnm@ti.com>
R: Grygorii Strashko <grygorii.strashko@ti.com>
L: linux-omap@vger.kernel.org
L: netdev@vger.kernel.org
VERSION = 4
PATCHLEVEL = 11
SUBLEVEL = 0
-EXTRAVERSION = -rc7
+EXTRAVERSION = -rc8
NAME = Fearless Coyote
# *DOCUMENTATION*
bool "Insn: div, divu, rem, remu"
default y
+config ARC_HAS_ACCL_REGS
+ bool "Reg Pair ACCL:ACCH (FPU and/or MPY > 6)"
+ default n
+ help
+ Depending on the configuration, CPU can contain accumulator reg-pair
+ (also referred to as r58:r59). These can also be used by gcc as GPR so
+ kernel needs to save/restore per process
+
endif # ISA_ARCV2
endmenu # "ARC CPU Configuration"
#include <asm/barrier.h>
#include <asm/smp.h>
+#define ATOMIC_INIT(i) { (i) }
+
#ifndef CONFIG_ARC_PLAT_EZNPS
#define atomic_read(v) READ_ONCE((v)->counter)
-#define ATOMIC_INIT(i) { (i) }
#ifdef CONFIG_ARC_HAS_LLSC
;
; Now manually save: r12, sp, fp, gp, r25
+#ifdef CONFIG_ARC_HAS_ACCL_REGS
+ PUSH r59
+ PUSH r58
+#endif
+
PUSH r30
PUSH r12
POP r12
POP r30
+#ifdef CONFIG_ARC_HAS_ACCL_REGS
+ POP r58
+ POP r59
+#endif
+
.endm
/*------------------------------------------------------------------------*/
unsigned long r12, r30;
+#ifdef CONFIG_ARC_HAS_ACCL_REGS
+ unsigned long r58, r59; /* ACCL/ACCH used by FPU / DSP MPY */
+#endif
+
/*------- Below list auto saved by h/w -----------*/
unsigned long r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11;
static void arc_chk_core_config(void)
{
struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()];
- int fpu_enabled;
+ int saved = 0, present = 0;
+ char *opt_nm = NULL;;
if (!cpu->extn.timer0)
panic("Timer0 is not present!\n");
/*
* FP hardware/software config sanity
- * -If hardware contains DPFP, kernel needs to save/restore FPU state
+ * -If hardware present, kernel needs to save/restore FPU state
* -If not, it will crash trying to save/restore the non-existant regs
- *
- * (only DPDP checked since SP has no arch visible regs)
*/
- fpu_enabled = IS_ENABLED(CONFIG_ARC_FPU_SAVE_RESTORE);
- if (cpu->extn.fpu_dp && !fpu_enabled)
- pr_warn("CONFIG_ARC_FPU_SAVE_RESTORE needed for working apps\n");
- else if (!cpu->extn.fpu_dp && fpu_enabled)
- panic("FPU non-existent, disable CONFIG_ARC_FPU_SAVE_RESTORE\n");
+ if (is_isa_arcompact()) {
+ opt_nm = "CONFIG_ARC_FPU_SAVE_RESTORE";
+ saved = IS_ENABLED(CONFIG_ARC_FPU_SAVE_RESTORE);
+
+ /* only DPDP checked since SP has no arch visible regs */
+ present = cpu->extn.fpu_dp;
+ } else {
+ opt_nm = "CONFIG_ARC_HAS_ACCL_REGS";
+ saved = IS_ENABLED(CONFIG_ARC_HAS_ACCL_REGS);
+
+ /* Accumulator Low:High pair (r58:59) present if DSP MPY or FPU */
+ present = cpu->extn_mpy.dsp | cpu->extn.fpu_sp | cpu->extn.fpu_dp;
+ }
+
+ if (present && !saved)
+ pr_warn("Enable %s for working apps\n", opt_nm);
+ else if (!present && saved)
+ panic("Disable %s, hardware NOT present\n", opt_nm);
}
/*
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
-m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ \
$(foreach board,$(BOARDS),$(generic_config_dir)/board-$(board).config)
- $(Q)$(MAKE) olddefconfig
+ $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
#
# Prevent generic merge_config rules attempting to merge single fragments
#
.PHONY: sead3_defconfig
sead3_defconfig:
- $(Q)$(MAKE) 32r2el_defconfig BOARDS=sead-3
+ $(Q)$(MAKE) -f $(srctree)/Makefile 32r2el_defconfig BOARDS=sead-3
.PHONY: sead3micro_defconfig
sead3micro_defconfig:
- $(Q)$(MAKE) micro32r2el_defconfig BOARDS=sead-3
+ $(Q)$(MAKE) -f $(srctree)/Makefile micro32r2el_defconfig BOARDS=sead-3
#include <asm/fpu.h>
#include <asm-generic/asm-prototypes.h>
#include <asm/uaccess.h>
+#include <asm/ftrace.h>
}
/* Sorted insert of 75th percentile into buf2 */
- for (k = 0; k < i; ++k) {
+ for (k = 0; k < i && k < ARRAY_SIZE(buf2); ++k) {
if (buf1[ARRAY_SIZE(buf1) - 1] < buf2[k]) {
l = min_t(unsigned int,
i, ARRAY_SIZE(buf2) - 1);
else if ((prog_req.fr1 && prog_req.frdefault) ||
(prog_req.single && !prog_req.frdefault))
/* Make sure 64-bit MIPS III/IV/64R1 will not pick FR1 */
- state->overall_fp_mode = ((current_cpu_data.fpu_id & MIPS_FPIR_F64) &&
+ state->overall_fp_mode = ((raw_current_cpu_data.fpu_id & MIPS_FPIR_F64) &&
cpu_has_mips_r2_r6) ?
FP_FR1 : FP_FR0;
else if (prog_req.fr1)
void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *p)
{
int reg;
- struct thread_info *ti = task_thread_info(p);
- unsigned long ksp = (unsigned long)ti + THREAD_SIZE - 32;
- struct pt_regs *regs = (struct pt_regs *)ksp - 1;
#if (KGDB_GDB_REG_SIZE == 32)
u32 *ptr = (u32 *)gdb_regs;
#else
#endif
for (reg = 0; reg < 16; reg++)
- *(ptr++) = regs->regs[reg];
+ *(ptr++) = 0;
/* S0 - S7 */
- for (reg = 16; reg < 24; reg++)
- *(ptr++) = regs->regs[reg];
+ *(ptr++) = p->thread.reg16;
+ *(ptr++) = p->thread.reg17;
+ *(ptr++) = p->thread.reg18;
+ *(ptr++) = p->thread.reg19;
+ *(ptr++) = p->thread.reg20;
+ *(ptr++) = p->thread.reg21;
+ *(ptr++) = p->thread.reg22;
+ *(ptr++) = p->thread.reg23;
for (reg = 24; reg < 28; reg++)
*(ptr++) = 0;
/* GP, SP, FP, RA */
- for (reg = 28; reg < 32; reg++)
- *(ptr++) = regs->regs[reg];
-
- *(ptr++) = regs->cp0_status;
- *(ptr++) = regs->lo;
- *(ptr++) = regs->hi;
- *(ptr++) = regs->cp0_badvaddr;
- *(ptr++) = regs->cp0_cause;
- *(ptr++) = regs->cp0_epc;
+ *(ptr++) = (long)p;
+ *(ptr++) = p->thread.reg29;
+ *(ptr++) = p->thread.reg30;
+ *(ptr++) = p->thread.reg31;
+
+ *(ptr++) = p->thread.cp0_status;
+
+ /* lo, hi */
+ *(ptr++) = 0;
+ *(ptr++) = 0;
+
+ /*
+ * BadVAddr, Cause
+ * Ideally these would come from the last exception frame up the stack
+ * but that requires unwinding, otherwise we can't know much for sure.
+ */
+ *(ptr++) = 0;
+ *(ptr++) = 0;
+
+ /*
+ * PC
+ * use return address (RA), i.e. the moment after return from resume()
+ */
+ *(ptr++) = p->thread.reg31;
}
void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long pc)
HANDLE_COUNTER(0)
}
+#ifdef CONFIG_MIPS_PERF_SHARED_TC_COUNTERS
+ read_unlock(&pmuint_rwlock);
+#endif
+ resume_local_counters();
+
/*
* Do all the work for the pending perf events. We can do this
* in here because the performance counter interrupt is a regular
if (handled == IRQ_HANDLED)
irq_work_run();
-#ifdef CONFIG_MIPS_PERF_SHARED_TC_COUNTERS
- read_unlock(&pmuint_rwlock);
-#endif
- resume_local_counters();
return handled;
}
#include <linux/kernel.h>
#include <linux/libfdt.h>
#include <linux/of_fdt.h>
-#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/start_kernel.h>
#include <linux/string.h>
#include <linux/printk.h>
local_irq_disable();
idle_task_exit();
cpu = smp_processor_id();
+ core = cpu_data[cpu].core;
cpu_death = CPU_DEATH_POWER;
pr_debug("CPU%d going offline\n", cpu);
if (cpu_has_mipsmt || cpu_has_vp) {
- core = cpu_data[cpu].core;
-
/* Look for another online VPE within the core */
for_each_online_cpu(cpu_death_sibling) {
if (cpu_data[cpu_death_sibling].core != core)
{
int corehi_irq;
+ /*
+ * Preallocate the i8259's expected virq's here. Since irqchip_init()
+ * will probe the irqchips in hierarchial order, i8259 is probed last.
+ * If anything allocates a virq before the i8259 is probed, it will
+ * be given one of the i8259's expected range and consequently setup
+ * of the i8259 will fail.
+ */
+ WARN(irq_alloc_descs(I8259A_IRQ_BASE, I8259A_IRQ_BASE,
+ 16, numa_node_id()) < 0,
+ "Cannot reserve i8259 virqs at IRQ%d\n", I8259A_IRQ_BASE);
+
i8259_set_poll(mips_pcibios_iack);
irqchip_init();
}
INIT_LIST_HEAD(&hose->list);
- list_add(&hose->list, &controllers);
+ list_add_tail(&hose->list, &controllers);
/*
* Do not panic here but later - this might happen before console init.
#define get_user __get_user
#if !defined(CONFIG_64BIT)
-#define LDD_USER(ptr) __get_user_asm64(ptr)
+#define LDD_USER(val, ptr) __get_user_asm64(val, ptr)
#define STD_USER(x, ptr) __put_user_asm64(x, ptr)
#else
-#define LDD_USER(ptr) __get_user_asm("ldd", ptr)
+#define LDD_USER(val, ptr) __get_user_asm(val, "ldd", ptr)
#define STD_USER(x, ptr) __put_user_asm("std", x, ptr)
#endif
" mtsp %0,%%sr2\n\t" \
: : "r"(get_fs()) : )
-#define __get_user(x, ptr) \
-({ \
- register long __gu_err __asm__ ("r8") = 0; \
- register long __gu_val; \
- \
- load_sr2(); \
- switch (sizeof(*(ptr))) { \
- case 1: __get_user_asm("ldb", ptr); break; \
- case 2: __get_user_asm("ldh", ptr); break; \
- case 4: __get_user_asm("ldw", ptr); break; \
- case 8: LDD_USER(ptr); break; \
- default: BUILD_BUG(); break; \
- } \
- \
- (x) = (__force __typeof__(*(ptr))) __gu_val; \
- __gu_err; \
+#define __get_user_internal(val, ptr) \
+({ \
+ register long __gu_err __asm__ ("r8") = 0; \
+ \
+ switch (sizeof(*(ptr))) { \
+ case 1: __get_user_asm(val, "ldb", ptr); break; \
+ case 2: __get_user_asm(val, "ldh", ptr); break; \
+ case 4: __get_user_asm(val, "ldw", ptr); break; \
+ case 8: LDD_USER(val, ptr); break; \
+ default: BUILD_BUG(); \
+ } \
+ \
+ __gu_err; \
})
-#define __get_user_asm(ldx, ptr) \
+#define __get_user(val, ptr) \
+({ \
+ load_sr2(); \
+ __get_user_internal(val, ptr); \
+})
+
+#define __get_user_asm(val, ldx, ptr) \
+{ \
+ register long __gu_val; \
+ \
__asm__("1: " ldx " 0(%%sr2,%2),%0\n" \
"9:\n" \
ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 9b) \
: "=r"(__gu_val), "=r"(__gu_err) \
- : "r"(ptr), "1"(__gu_err));
+ : "r"(ptr), "1"(__gu_err)); \
+ \
+ (val) = (__force __typeof__(*(ptr))) __gu_val; \
+}
#if !defined(CONFIG_64BIT)
-#define __get_user_asm64(ptr) \
+#define __get_user_asm64(val, ptr) \
+{ \
+ union { \
+ unsigned long long l; \
+ __typeof__(*(ptr)) t; \
+ } __gu_tmp; \
+ \
__asm__(" copy %%r0,%R0\n" \
"1: ldw 0(%%sr2,%2),%0\n" \
"2: ldw 4(%%sr2,%2),%R0\n" \
"9:\n" \
ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 9b) \
ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 9b) \
- : "=r"(__gu_val), "=r"(__gu_err) \
- : "r"(ptr), "1"(__gu_err));
+ : "=&r"(__gu_tmp.l), "=r"(__gu_err) \
+ : "r"(ptr), "1"(__gu_err)); \
+ \
+ (val) = __gu_tmp.t; \
+}
#endif /* !defined(CONFIG_64BIT) */
-#define __put_user(x, ptr) \
+#define __put_user_internal(x, ptr) \
({ \
register long __pu_err __asm__ ("r8") = 0; \
__typeof__(*(ptr)) __x = (__typeof__(*(ptr)))(x); \
\
- load_sr2(); \
switch (sizeof(*(ptr))) { \
- case 1: __put_user_asm("stb", __x, ptr); break; \
- case 2: __put_user_asm("sth", __x, ptr); break; \
- case 4: __put_user_asm("stw", __x, ptr); break; \
- case 8: STD_USER(__x, ptr); break; \
- default: BUILD_BUG(); break; \
- } \
+ case 1: __put_user_asm("stb", __x, ptr); break; \
+ case 2: __put_user_asm("sth", __x, ptr); break; \
+ case 4: __put_user_asm("stw", __x, ptr); break; \
+ case 8: STD_USER(__x, ptr); break; \
+ default: BUILD_BUG(); \
+ } \
\
__pu_err; \
})
+#define __put_user(x, ptr) \
+({ \
+ load_sr2(); \
+ __put_user_internal(x, ptr); \
+})
+
+
/*
* The "__put_user/kernel_asm()" macros tell gcc they read from memory
* instead of writing. This is because they do not write to any memory
mtctr reg; \
bctr
-#define BRANCH_LINK_TO_FAR(reg, label) \
- __LOAD_FAR_HANDLER(reg, label); \
- mtctr reg; \
+#define BRANCH_LINK_TO_FAR(label) \
+ __LOAD_FAR_HANDLER(r12, label); \
+ mtctr r12; \
bctrl
/*
#define BRANCH_TO_COMMON(reg, label) \
b label
-#define BRANCH_LINK_TO_FAR(reg, label) \
+#define BRANCH_LINK_TO_FAR(label) \
bl label
#define BRANCH_TO_KVM(reg, label) \
addi r8,r1,INT_FRAME_SIZE /* Get the kprobed function entry */
- lwz r3,GPR1(r1)
+ ld r3,GPR1(r1)
subi r3,r3,INT_FRAME_SIZE /* dst: Allocate a trampoline exception frame */
mr r4,r1 /* src: current exception frame */
mr r1,r3 /* Reroute the trampoline frame to r1 */
addi r6,r6,8
bdnz 2b
- /* Do real store operation to complete stwu */
- lwz r5,GPR1(r1)
+ /* Do real store operation to complete stdu */
+ ld r5,GPR1(r1)
std r8,0(r5)
/* Clear _TIF_EMULATE_STACK_STORE flag */
EXCEPTION_PROLOG_COMMON_2(PACA_EXGEN)
EXCEPTION_PROLOG_COMMON_3(0xe60)
addi r3,r1,STACK_FRAME_OVERHEAD
- BRANCH_LINK_TO_FAR(r4, hmi_exception_realmode)
+ BRANCH_LINK_TO_FAR(hmi_exception_realmode) /* Function call ABI */
/* Windup the stack. */
/* Move original HSRR0 and HSRR1 into the respective regs */
ld r9,_MSR(r1)
{
if (!MACHINE_HAS_NX)
pte_val(entry) &= ~_PAGE_NOEXEC;
+ if (pte_present(entry))
+ pte_val(entry) &= ~_PAGE_UNUSED;
if (mm_has_pgste(mm))
ptep_set_pte_at(mm, addr, ptep, entry);
else
select ARCH_HAS_SG_CHAIN
select CPU_NO_EFFICIENT_FFS
select HAVE_ARCH_HARDENED_USERCOPY
- select PROVE_LOCKING_SMALL if PROVE_LOCKING
+ select LOCKDEP_SMALL if LOCKDEP
select ARCH_WANT_RELAX_ORDER
config SPARC32
select HAVE_ARCH_AUDITSYSCALL
select ARCH_SUPPORTS_ATOMIC_RMW
select HAVE_NMI
+ select HAVE_REGS_AND_STACK_ACCESS_API
config ARCH_DEFCONFIG
string
#define MAX_REG_OFFSET (offsetof(struct pt_regs, magic))
-extern int regs_query_register_offset(const char *name);
+int regs_query_register_offset(const char *name);
+unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs, unsigned int n);
/**
* regs_get_register() - get register value from its offset
#define __NR_copy_file_range 357
#define __NR_preadv2 358
#define __NR_pwritev2 359
+#define __NR_statx 360
-#define NR_syscalls 360
+#define NR_syscalls 361
/* Bitmask values returned from kern_features system call. */
#define KERN_FEATURE_MIXED_MODE_STACK 0x00000001
#define __IGNORE_getresgid
#endif
+/* Sparc doesn't have protection keys. */
+#define __IGNORE_pkey_mprotect
+#define __IGNORE_pkey_alloc
+#define __IGNORE_pkey_free
+
#endif /* _UAPI_SPARC_UNISTD_H */
return roff->offset;
return -EINVAL;
}
+
+/**
+ * regs_within_kernel_stack() - check the address in the stack
+ * @regs: pt_regs which contains kernel stack pointer.
+ * @addr: address which is checked.
+ *
+ * regs_within_kernel_stack() checks @addr is within the kernel stack page(s).
+ * If @addr is within the kernel stack, it returns true. If not, returns false.
+ */
+static inline int regs_within_kernel_stack(struct pt_regs *regs,
+ unsigned long addr)
+{
+ unsigned long ksp = kernel_stack_pointer(regs) + STACK_BIAS;
+ return ((addr & ~(THREAD_SIZE - 1)) ==
+ (ksp & ~(THREAD_SIZE - 1)));
+}
+
+/**
+ * regs_get_kernel_stack_nth() - get Nth entry of the stack
+ * @regs: pt_regs which contains kernel stack pointer.
+ * @n: stack entry number.
+ *
+ * regs_get_kernel_stack_nth() returns @n th entry of the kernel stack which
+ * is specified by @regs. If the @n th entry is NOT in the kernel stack,
+ * this returns 0.
+ */
+unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs, unsigned int n)
+{
+ unsigned long ksp = kernel_stack_pointer(regs) + STACK_BIAS;
+ unsigned long *addr = (unsigned long *)ksp;
+ addr += n;
+ if (regs_within_kernel_stack(regs, (unsigned long)addr))
+ return *addr;
+ else
+ return 0;
+}
/*345*/ .long sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf
/*350*/ .long sys_execveat, sys_membarrier, sys_userfaultfd, sys_bind, sys_listen
/*355*/ .long sys_setsockopt, sys_mlock2, sys_copy_file_range, sys_preadv2, sys_pwritev2
+/*360*/ .long sys_statx
.word sys32_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf
/*350*/ .word sys32_execveat, sys_membarrier, sys_userfaultfd, sys_bind, sys_listen
.word compat_sys_setsockopt, sys_mlock2, sys_copy_file_range, compat_sys_preadv2, compat_sys_pwritev2
+/*360*/ .word sys_statx
#endif /* CONFIG_COMPAT */
.word sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf
/*350*/ .word sys64_execveat, sys_membarrier, sys_userfaultfd, sys_bind, sys_listen
.word sys_setsockopt, sys_mlock2, sys_copy_file_range, sys_preadv2, sys_pwritev2
+/*360*/ .word sys_statx
pgd_t *pgd;
unsigned long next;
+ addr &= PMD_MASK;
+ if (addr < floor) {
+ addr += PMD_SIZE;
+ if (!addr)
+ return;
+ }
+ if (ceiling) {
+ ceiling &= PMD_MASK;
+ if (!ceiling)
+ return;
+ }
+ if (end - 1 > ceiling - 1)
+ end -= PMD_SIZE;
+ if (addr > end - 1)
+ return;
+
pgd = pgd_offset(tlb->mm, addr);
do {
next = pgd_addr_end(addr, end);
head = llist_reverse_order(head);
llist_for_each_entry_safe(node, tmp, head, llnode) {
mce = &node->mce;
- atomic_notifier_call_chain(&x86_mce_decoder_chain, 0, mce);
+ blocking_notifier_call_chain(&x86_mce_decoder_chain, 0, mce);
gen_pool_free(mce_evt_pool, (unsigned long)node, sizeof(*node));
}
}
MCE_PANIC_SEVERITY,
};
-extern struct atomic_notifier_head x86_mce_decoder_chain;
+extern struct blocking_notifier_head x86_mce_decoder_chain;
#define ATTR_LEN 16
#define INITIAL_CHECK_INTERVAL 5 * 60 /* 5 minutes */
* CPU/chipset specific EDAC code can register a notifier call here to print
* MCE errors in a human-readable form.
*/
-ATOMIC_NOTIFIER_HEAD(x86_mce_decoder_chain);
+BLOCKING_NOTIFIER_HEAD(x86_mce_decoder_chain);
/* Do initial initialization of a struct mce */
void mce_setup(struct mce *m)
WARN_ON(nb->priority > MCE_PRIO_LOWEST && nb->priority < MCE_PRIO_EDAC);
- atomic_notifier_chain_register(&x86_mce_decoder_chain, nb);
+ blocking_notifier_chain_register(&x86_mce_decoder_chain, nb);
}
EXPORT_SYMBOL_GPL(mce_register_decode_chain);
{
atomic_dec(&num_notifiers);
- atomic_notifier_chain_unregister(&x86_mce_decoder_chain, nb);
+ blocking_notifier_chain_unregister(&x86_mce_decoder_chain, nb);
}
EXPORT_SYMBOL_GPL(mce_unregister_decode_chain);
static void print_mce(struct mce *m)
{
- int ret = 0;
-
__print_mce(m);
-
- /*
- * Print out human-readable details about the MCE error,
- * (if the CPU has an implementation for that)
- */
- ret = atomic_notifier_call_chain(&x86_mce_decoder_chain, 0, m);
- if (ret == NOTIFY_STOP)
- return;
-
pr_emerg_ratelimited(HW_ERR "Run the above through 'mcelog --ascii'\n");
}
hctx = q->queue_hw_ctx[blk_qc_t_to_queue_num(cookie)];
if (!blk_qc_t_is_internal(cookie))
rq = blk_mq_tag_to_rq(hctx->tags, blk_qc_t_to_tag(cookie));
- else
+ else {
rq = blk_mq_tag_to_rq(hctx->sched_tags, blk_qc_t_to_tag(cookie));
+ /*
+ * With scheduling, if the request has completed, we'll
+ * get a NULL return here, as we clear the sched tag when
+ * that happens. The request still remains valid, like always,
+ * so we should be safe with just the NULL check.
+ */
+ if (!rq)
+ return false;
+ }
return __blk_mq_poll(hctx, rq);
}
}
EXPORT_SYMBOL(elevator_change);
+static inline bool elv_support_iosched(struct request_queue *q)
+{
+ if (q->mq_ops && q->tag_set && (q->tag_set->flags &
+ BLK_MQ_F_NO_SCHED))
+ return false;
+ return true;
+}
+
ssize_t elv_iosched_store(struct request_queue *q, const char *name,
size_t count)
{
int ret;
- if (!(q->mq_ops || q->request_fn))
+ if (!(q->mq_ops || q->request_fn) || !elv_support_iosched(q))
return count;
ret = __elevator_change(q, name);
len += sprintf(name+len, "[%s] ", elv->elevator_name);
continue;
}
- if (__e->uses_mq && q->mq_ops)
+ if (__e->uses_mq && q->mq_ops && elv_support_iosched(q))
len += sprintf(name+len, "%s ", __e->elevator_name);
else if (!__e->uses_mq && !q->mq_ops)
len += sprintf(name+len, "%s ", __e->elevator_name);
crypto_completion_t complete;
void *data;
u8 *result;
+ u32 flags;
void *ubuf[] CRYPTO_MINALIGN_ATTR;
};
priv->result = req->result;
priv->complete = req->base.complete;
priv->data = req->base.data;
+ priv->flags = req->base.flags;
+
/*
* WARNING: We do not backup req->priv here! The req->priv
* is for internal use of the Crypto API and the
return 0;
}
-static void ahash_restore_req(struct ahash_request *req)
+static void ahash_restore_req(struct ahash_request *req, int err)
{
struct ahash_request_priv *priv = req->priv;
+ if (!err)
+ memcpy(priv->result, req->result,
+ crypto_ahash_digestsize(crypto_ahash_reqtfm(req)));
+
/* Restore the original crypto request. */
req->result = priv->result;
- req->base.complete = priv->complete;
- req->base.data = priv->data;
+
+ ahash_request_set_callback(req, priv->flags,
+ priv->complete, priv->data);
req->priv = NULL;
/* Free the req->priv.priv from the ADJUSTED request. */
kzfree(priv);
}
-static void ahash_op_unaligned_finish(struct ahash_request *req, int err)
+static void ahash_notify_einprogress(struct ahash_request *req)
{
struct ahash_request_priv *priv = req->priv;
+ struct crypto_async_request oreq;
- if (err == -EINPROGRESS)
- return;
-
- if (!err)
- memcpy(priv->result, req->result,
- crypto_ahash_digestsize(crypto_ahash_reqtfm(req)));
+ oreq.data = priv->data;
- ahash_restore_req(req);
+ priv->complete(&oreq, -EINPROGRESS);
}
static void ahash_op_unaligned_done(struct crypto_async_request *req, int err)
{
struct ahash_request *areq = req->data;
+ if (err == -EINPROGRESS) {
+ ahash_notify_einprogress(areq);
+ return;
+ }
+
/*
* Restore the original request, see ahash_op_unaligned() for what
* goes where.
*/
/* First copy req->result into req->priv.result */
- ahash_op_unaligned_finish(areq, err);
+ ahash_restore_req(areq, err);
/* Complete the ORIGINAL request. */
areq->base.complete(&areq->base, err);
return err;
err = op(req);
- ahash_op_unaligned_finish(req, err);
+ if (err == -EINPROGRESS ||
+ (err == -EBUSY && (ahash_request_flags(req) &
+ CRYPTO_TFM_REQ_MAY_BACKLOG)))
+ return err;
+
+ ahash_restore_req(req, err);
return err;
}
}
EXPORT_SYMBOL_GPL(crypto_ahash_digest);
-static void ahash_def_finup_finish2(struct ahash_request *req, int err)
+static void ahash_def_finup_done2(struct crypto_async_request *req, int err)
{
- struct ahash_request_priv *priv = req->priv;
+ struct ahash_request *areq = req->data;
if (err == -EINPROGRESS)
return;
- if (!err)
- memcpy(priv->result, req->result,
- crypto_ahash_digestsize(crypto_ahash_reqtfm(req)));
-
- ahash_restore_req(req);
-}
-
-static void ahash_def_finup_done2(struct crypto_async_request *req, int err)
-{
- struct ahash_request *areq = req->data;
-
- ahash_def_finup_finish2(areq, err);
+ ahash_restore_req(areq, err);
areq->base.complete(&areq->base, err);
}
goto out;
req->base.complete = ahash_def_finup_done2;
- req->base.flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
+
err = crypto_ahash_reqtfm(req)->final(req);
+ if (err == -EINPROGRESS ||
+ (err == -EBUSY && (ahash_request_flags(req) &
+ CRYPTO_TFM_REQ_MAY_BACKLOG)))
+ return err;
out:
- ahash_def_finup_finish2(req, err);
+ ahash_restore_req(req, err);
return err;
}
{
struct ahash_request *areq = req->data;
+ if (err == -EINPROGRESS) {
+ ahash_notify_einprogress(areq);
+ return;
+ }
+
+ areq->base.flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
+
err = ahash_def_finup_finish1(areq, err);
+ if (areq->priv)
+ return;
areq->base.complete(&areq->base, err);
}
return err;
err = tfm->update(req);
+ if (err == -EINPROGRESS ||
+ (err == -EBUSY && (ahash_request_flags(req) &
+ CRYPTO_TFM_REQ_MAY_BACKLOG)))
+ return err;
+
return ahash_def_finup_finish1(req, err);
}
struct aead_async_rsgl first_rsgl;
struct list_head list;
struct kiocb *iocb;
+ struct sock *sk;
unsigned int tsgls;
char iv[];
};
static void aead_async_cb(struct crypto_async_request *_req, int err)
{
- struct sock *sk = _req->data;
- struct alg_sock *ask = alg_sk(sk);
- struct aead_ctx *ctx = ask->private;
- struct crypto_aead *tfm = crypto_aead_reqtfm(&ctx->aead_req);
- struct aead_request *req = aead_request_cast(_req);
+ struct aead_request *req = _req->data;
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
struct aead_async_req *areq = GET_ASYM_REQ(req, tfm);
+ struct sock *sk = areq->sk;
struct scatterlist *sg = areq->tsgl;
struct aead_async_rsgl *rsgl;
struct kiocb *iocb = areq->iocb;
memset(&areq->first_rsgl, '\0', sizeof(areq->first_rsgl));
INIT_LIST_HEAD(&areq->list);
areq->iocb = msg->msg_iocb;
+ areq->sk = sk;
memcpy(areq->iv, ctx->iv, crypto_aead_ivsize(tfm));
aead_request_set_tfm(req, tfm);
aead_request_set_ad(req, ctx->aead_assoclen);
aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
- aead_async_cb, sk);
+ aead_async_cb, req);
used -= ctx->aead_assoclen;
/* take over all tx sgls from ctx */
struct rctx *rctx;
rctx = skcipher_request_ctx(req);
+
+ if (err == -EINPROGRESS) {
+ if (rctx->left != req->cryptlen)
+ return;
+ goto out;
+ }
+
subreq = &rctx->subreq;
subreq->base.flags &= CRYPTO_TFM_REQ_MAY_BACKLOG;
if (rctx->left)
return;
+out:
skcipher_request_complete(req, err);
}
struct rctx *rctx;
rctx = skcipher_request_ctx(req);
+
+ if (err == -EINPROGRESS) {
+ if (rctx->left != req->cryptlen)
+ return;
+ goto out;
+ }
+
subreq = &rctx->subreq;
subreq->base.flags &= CRYPTO_TFM_REQ_MAY_BACKLOG;
if (rctx->left)
return;
+out:
skcipher_request_complete(req, err);
}
struct rctx *rctx;
rctx = skcipher_request_ctx(req);
+
+ if (err == -EINPROGRESS) {
+ if (rctx->left != req->cryptlen)
+ return;
+ goto out;
+ }
+
subreq = &rctx->subreq;
subreq->base.flags &= CRYPTO_TFM_REQ_MAY_BACKLOG;
if (rctx->left)
return;
+out:
skcipher_request_complete(req, err);
}
struct rctx *rctx;
rctx = skcipher_request_ctx(req);
+
+ if (err == -EINPROGRESS) {
+ if (rctx->left != req->cryptlen)
+ return;
+ goto out;
+ }
+
subreq = &rctx->subreq;
subreq->base.flags &= CRYPTO_TFM_REQ_MAY_BACKLOG;
if (rctx->left)
return;
+out:
skcipher_request_complete(req, err);
}
return -EINVAL;
/* The state of the list is 'on' IFF all resources are 'on'. */
+ cur_state = 0;
list_for_each_entry(entry, list, node) {
struct acpi_power_resource *resource = entry->resource;
acpi_handle handle = resource->device.handle;
dd->tags.reserved_tags = 1;
dd->tags.cmd_size = sizeof(struct mtip_cmd);
dd->tags.numa_node = dd->numa_node;
- dd->tags.flags = BLK_MQ_F_SHOULD_MERGE;
+ dd->tags.flags = BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_NO_SCHED;
dd->tags.driver_data = dd;
dd->tags.timeout = MTIP_NCQ_CMD_TIMEOUT_MS;
{ 0, 2 }, { 1, 4 }, { 2, 6 }, { 3, 8 }, { 0 }
};
+static const struct clk_div_table pll_divq_table[] = {
+ { 2, 2 }, { 3, 3 }, { 4, 4 }, { 5, 5 }, { 6, 6 }, { 7, 7 },
+ { 8, 8 }, { 9, 9 }, { 10, 10 }, { 11, 11 }, { 12, 12 }, { 13, 13 },
+ { 14, 14 }, { 15, 15 },
+ { 0 }
+};
+
static const struct clk_div_table pll_divr_table[] = {
{ 2, 2 }, { 3, 3 }, { 4, 4 }, { 5, 5 }, { 6, 6 }, { 7, 7 }, { 0 }
};
#define MAX_PLL_DIV 3
static const struct stm32f4_div_data div_data[MAX_PLL_DIV] = {
- { 16, 2, 0, pll_divp_table },
- { 24, 4, CLK_DIVIDER_ONE_BASED, NULL },
- { 28, 3, 0, pll_divr_table },
+ { 16, 2, 0, pll_divp_table },
+ { 24, 4, 0, pll_divq_table },
+ { 28, 3, 0, pll_divr_table },
};
struct stm32f4_pll_data {
config SUNXI_CCU
bool "Clock support for Allwinner SoCs"
depends on ARCH_SUNXI || COMPILE_TEST
+ select RESET_CONTROLLER
default ARCH_SUNXI
if SUNXI_CCU
bool
config SUNXI_CCU_GATE
- bool
+ def_bool y
config SUNXI_CCU_MUX
bool
config SUN9I_A80_CCU
bool "Support for the Allwinner A80 CCU"
select SUNXI_CCU_DIV
+ select SUNXI_CCU_MULT
select SUNXI_CCU_GATE
select SUNXI_CCU_NKMP
select SUNXI_CCU_NM
.num_resets = ARRAY_SIZE(sun8i_a33_ccu_resets),
};
+static struct ccu_pll_nb sun8i_a33_pll_cpu_nb = {
+ .common = &pll_cpux_clk.common,
+ /* copy from pll_cpux_clk */
+ .enable = BIT(31),
+ .lock = BIT(28),
+};
+
static struct ccu_mux_nb sun8i_a33_cpu_nb = {
.common = &cpux_clk.common,
.cm = &cpux_clk.mux,
sunxi_ccu_probe(node, reg, &sun8i_a33_ccu_desc);
+ /* Gate then ungate PLL CPU after any rate changes */
+ ccu_pll_notifier_register(&sun8i_a33_pll_cpu_nb);
+
+ /* Reparent CPU during PLL CPU rate changes */
ccu_mux_notifier_register(pll_cpux_clk.common.hw.clk,
&sun8i_a33_cpu_nb);
}
* GNU General Public License for more details.
*/
+#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/iopoll.h>
#include <linux/slab.h>
#include "ccu_common.h"
+#include "ccu_gate.h"
#include "ccu_reset.h"
static DEFINE_SPINLOCK(ccu_lock);
WARN_ON(readl_relaxed_poll_timeout(addr, reg, reg & lock, 100, 70000));
}
+/*
+ * This clock notifier is called when the frequency of a PLL clock is
+ * changed. In common PLL designs, changes to the dividers take effect
+ * almost immediately, while changes to the multipliers (implemented
+ * as dividers in the feedback loop) take a few cycles to work into
+ * the feedback loop for the PLL to stablize.
+ *
+ * Sometimes when the PLL clock rate is changed, the decrease in the
+ * divider is too much for the decrease in the multiplier to catch up.
+ * The PLL clock rate will spike, and in some cases, might lock up
+ * completely.
+ *
+ * This notifier callback will gate and then ungate the clock,
+ * effectively resetting it, so it proceeds to work. Care must be
+ * taken to reparent consumers to other temporary clocks during the
+ * rate change, and that this notifier callback must be the first
+ * to be registered.
+ */
+static int ccu_pll_notifier_cb(struct notifier_block *nb,
+ unsigned long event, void *data)
+{
+ struct ccu_pll_nb *pll = to_ccu_pll_nb(nb);
+ int ret = 0;
+
+ if (event != POST_RATE_CHANGE)
+ goto out;
+
+ ccu_gate_helper_disable(pll->common, pll->enable);
+
+ ret = ccu_gate_helper_enable(pll->common, pll->enable);
+ if (ret)
+ goto out;
+
+ ccu_helper_wait_for_lock(pll->common, pll->lock);
+
+out:
+ return notifier_from_errno(ret);
+}
+
+int ccu_pll_notifier_register(struct ccu_pll_nb *pll_nb)
+{
+ pll_nb->clk_nb.notifier_call = ccu_pll_notifier_cb;
+
+ return clk_notifier_register(pll_nb->common->hw.clk,
+ &pll_nb->clk_nb);
+}
+
int sunxi_ccu_probe(struct device_node *node, void __iomem *reg,
const struct sunxi_ccu_desc *desc)
{
void ccu_helper_wait_for_lock(struct ccu_common *common, u32 lock);
+struct ccu_pll_nb {
+ struct notifier_block clk_nb;
+ struct ccu_common *common;
+
+ u32 enable;
+ u32 lock;
+};
+
+#define to_ccu_pll_nb(_nb) container_of(_nb, struct ccu_pll_nb, clk_nb)
+
+int ccu_pll_notifier_register(struct ccu_pll_nb *pll_nb);
+
int sunxi_ccu_probe(struct device_node *node, void __iomem *reg,
const struct sunxi_ccu_desc *desc);
return;
case HID_DG_TOOLSERIALNUMBER:
wacom_wac->serial[0] = (wacom_wac->serial[0] & ~0xFFFFFFFFULL);
- wacom_wac->serial[0] |= value;
+ wacom_wac->serial[0] |= (__u32)value;
return;
case WACOM_HID_WD_SENSE:
wacom_wac->hid_data.sense_state = value;
wacom_wac->hid_data.cc_index = field->index;
wacom_wac->hid_data.cc_value_index = usage->usage_index;
break;
+ case HID_DG_CONTACTID:
+ if ((field->logical_maximum - field->logical_minimum) < touch_max) {
+ /*
+ * The HID descriptor for G11 sensors leaves logical
+ * maximum set to '1' despite it being a multitouch
+ * device. Override to a sensible number.
+ */
+ field->logical_maximum = 255;
+ }
+ break;
}
}
* Asus UX32VD 0x361f02 00, 15, 0e clickpad
* Avatar AVIU-145A2 0x361f00 ? clickpad
* Fujitsu LIFEBOOK E544 0x470f00 d0, 12, 09 2 hw buttons
+ * Fujitsu LIFEBOOK E547 0x470f00 50, 12, 09 2 hw buttons
* Fujitsu LIFEBOOK E554 0x570f01 40, 14, 0c 2 hw buttons
* Fujitsu T725 0x470f01 05, 12, 09 2 hw buttons
* Fujitsu H730 0x570f00 c0, 14, 0c 3 hw buttons (**)
DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E544"),
},
},
+ {
+ /* Fujitsu LIFEBOOK E547 does not work with crc_enabled == 0 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E547"),
+ },
+ },
{
/* Fujitsu LIFEBOOK E554 does not work with crc_enabled == 0 */
.matches = {
DMI_MATCH(DMI_PRODUCT_NAME, "20046"),
},
},
+ {
+ /* Clevo P650RS, 650RP6, Sager NP8152-S, and others */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "P65xRP"),
+ },
+ },
{ }
};
sdio_free_func_cis(func);
kfree(func->info);
-
+ kfree(func->tmpbuf);
kfree(func);
}
if (!func)
return ERR_PTR(-ENOMEM);
+ /*
+ * allocate buffer separately to make sure it's properly aligned for
+ * DMA usage (incl. 64 bit DMA)
+ */
+ func->tmpbuf = kmalloc(4, GFP_KERNEL);
+ if (!func->tmpbuf) {
+ kfree(func);
+ return ERR_PTR(-ENOMEM);
+ }
+
func->card = card;
device_initialize(&func->dev);
#include <linux/ioport.h>
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/stat.h>
if (card->type == MMC_TYPE_SDIO ||
card->type == MMC_TYPE_SD_COMBO) {
- set_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags);
+ if (!test_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags)) {
+ pm_runtime_get_noresume(mmc->parent);
+ set_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags);
+ }
clk_en_a = clk_en_a_old & ~clken_low_pwr;
} else {
- clear_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags);
+ if (test_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags)) {
+ pm_runtime_put_noidle(mmc->parent);
+ clear_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags);
+ }
clk_en_a = clk_en_a_old | clken_low_pwr;
}
switch (uhs) {
case MMC_TIMING_UHS_SDR50:
+ case MMC_TIMING_UHS_DDR50:
pinctrl = imx_data->pins_100mhz;
break;
case MMC_TIMING_UHS_SDR104:
return err;
}
- if (bytes == 0) {
- err = ubi_wl_flush(ubi, UBI_ALL, UBI_ALL);
- if (err)
- return err;
+ err = ubi_wl_flush(ubi, UBI_ALL, UBI_ALL);
+ if (err)
+ return err;
+ if (bytes == 0) {
err = clear_update_marker(ubi, vol, 0);
if (err)
return err;
gso_max_size = min(gso_max_size, slave->dev->gso_max_size);
gso_max_segs = min(gso_max_segs, slave->dev->gso_max_segs);
}
+ bond_dev->hard_header_len = max_hard_header_len;
done:
bond_dev->vlan_features = vlan_features;
bond_dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL;
- bond_dev->hard_header_len = max_hard_header_len;
bond_dev->gso_max_segs = gso_max_segs;
netif_set_gso_max_size(bond_dev, gso_max_size);
PCAN-USB Pro dual CAN 2.0b channels USB adapter
PCAN-USB FD single CAN-FD channel USB adapter
PCAN-USB Pro FD dual CAN-FD channels USB adapter
+ PCAN-Chip USB CAN-FD to USB stamp module
+ PCAN-USB X6 6 CAN-FD channels USB adapter
(see also http://www.peak-system.com).
static int gs_usb_set_identify(struct net_device *netdev, bool do_identify)
{
struct gs_can *dev = netdev_priv(netdev);
- struct gs_identify_mode imode;
+ struct gs_identify_mode *imode;
int rc;
+ imode = kmalloc(sizeof(*imode), GFP_KERNEL);
+
+ if (!imode)
+ return -ENOMEM;
+
if (do_identify)
- imode.mode = GS_CAN_IDENTIFY_ON;
+ imode->mode = GS_CAN_IDENTIFY_ON;
else
- imode.mode = GS_CAN_IDENTIFY_OFF;
+ imode->mode = GS_CAN_IDENTIFY_OFF;
rc = usb_control_msg(interface_to_usbdev(dev->iface),
usb_sndctrlpipe(interface_to_usbdev(dev->iface),
USB_RECIP_INTERFACE,
dev->channel,
0,
- &imode,
- sizeof(imode),
+ imode,
+ sizeof(*imode),
100);
+ kfree(imode);
+
return (rc > 0) ? 0 : rc;
}
{USB_DEVICE(PCAN_USB_VENDOR_ID, PCAN_USBPRO_PRODUCT_ID)},
{USB_DEVICE(PCAN_USB_VENDOR_ID, PCAN_USBFD_PRODUCT_ID)},
{USB_DEVICE(PCAN_USB_VENDOR_ID, PCAN_USBPROFD_PRODUCT_ID)},
+ {USB_DEVICE(PCAN_USB_VENDOR_ID, PCAN_USBCHIP_PRODUCT_ID)},
{USB_DEVICE(PCAN_USB_VENDOR_ID, PCAN_USBX6_PRODUCT_ID)},
{} /* Terminating entry */
};
&pcan_usb_pro,
&pcan_usb_fd,
&pcan_usb_pro_fd,
+ &pcan_usb_chip,
&pcan_usb_x6,
};
#define PCAN_USBPRO_PRODUCT_ID 0x000d
#define PCAN_USBPROFD_PRODUCT_ID 0x0011
#define PCAN_USBFD_PRODUCT_ID 0x0012
+#define PCAN_USBCHIP_PRODUCT_ID 0x0013
#define PCAN_USBX6_PRODUCT_ID 0x0014
#define PCAN_USB_DRIVER_NAME "peak_usb"
extern const struct peak_usb_adapter pcan_usb;
extern const struct peak_usb_adapter pcan_usb_pro;
extern const struct peak_usb_adapter pcan_usb_fd;
+extern const struct peak_usb_adapter pcan_usb_chip;
extern const struct peak_usb_adapter pcan_usb_pro_fd;
extern const struct peak_usb_adapter pcan_usb_x6;
.do_get_berr_counter = pcan_usb_fd_get_berr_counter,
};
+/* describes the PCAN-CHIP USB */
+static const struct can_bittiming_const pcan_usb_chip_const = {
+ .name = "pcan_chip_usb",
+ .tseg1_min = 1,
+ .tseg1_max = (1 << PUCAN_TSLOW_TSGEG1_BITS),
+ .tseg2_min = 1,
+ .tseg2_max = (1 << PUCAN_TSLOW_TSGEG2_BITS),
+ .sjw_max = (1 << PUCAN_TSLOW_SJW_BITS),
+ .brp_min = 1,
+ .brp_max = (1 << PUCAN_TSLOW_BRP_BITS),
+ .brp_inc = 1,
+};
+
+static const struct can_bittiming_const pcan_usb_chip_data_const = {
+ .name = "pcan_chip_usb",
+ .tseg1_min = 1,
+ .tseg1_max = (1 << PUCAN_TFAST_TSGEG1_BITS),
+ .tseg2_min = 1,
+ .tseg2_max = (1 << PUCAN_TFAST_TSGEG2_BITS),
+ .sjw_max = (1 << PUCAN_TFAST_SJW_BITS),
+ .brp_min = 1,
+ .brp_max = (1 << PUCAN_TFAST_BRP_BITS),
+ .brp_inc = 1,
+};
+
+const struct peak_usb_adapter pcan_usb_chip = {
+ .name = "PCAN-Chip USB",
+ .device_id = PCAN_USBCHIP_PRODUCT_ID,
+ .ctrl_count = PCAN_USBFD_CHANNEL_COUNT,
+ .ctrlmode_supported = CAN_CTRLMODE_FD |
+ CAN_CTRLMODE_3_SAMPLES | CAN_CTRLMODE_LISTENONLY,
+ .clock = {
+ .freq = PCAN_UFD_CRYSTAL_HZ,
+ },
+ .bittiming_const = &pcan_usb_chip_const,
+ .data_bittiming_const = &pcan_usb_chip_data_const,
+
+ /* size of device private data */
+ .sizeof_dev_private = sizeof(struct pcan_usb_fd_device),
+
+ /* timestamps usage */
+ .ts_used_bits = 32,
+ .ts_period = 1000000, /* calibration period in ts. */
+ .us_per_ts_scale = 1, /* us = (ts * scale) >> shift */
+ .us_per_ts_shift = 0,
+
+ /* give here messages in/out endpoints */
+ .ep_msg_in = PCAN_USBPRO_EP_MSGIN,
+ .ep_msg_out = {PCAN_USBPRO_EP_MSGOUT_0},
+
+ /* size of rx/tx usb buffers */
+ .rx_buffer_size = PCAN_UFD_RX_BUFFER_SIZE,
+ .tx_buffer_size = PCAN_UFD_TX_BUFFER_SIZE,
+
+ /* device callbacks */
+ .intf_probe = pcan_usb_pro_probe, /* same as PCAN-USB Pro */
+ .dev_init = pcan_usb_fd_init,
+
+ .dev_exit = pcan_usb_fd_exit,
+ .dev_free = pcan_usb_fd_free,
+ .dev_set_bus = pcan_usb_fd_set_bus,
+ .dev_set_bittiming = pcan_usb_fd_set_bittiming_slow,
+ .dev_set_data_bittiming = pcan_usb_fd_set_bittiming_fast,
+ .dev_decode_buf = pcan_usb_fd_decode_buf,
+ .dev_start = pcan_usb_fd_start,
+ .dev_stop = pcan_usb_fd_stop,
+ .dev_restart_async = pcan_usb_fd_restart_async,
+ .dev_encode_msg = pcan_usb_fd_encode_msg,
+
+ .do_get_berr_counter = pcan_usb_fd_get_berr_counter,
+};
+
/* describes the PCAN-USB Pro FD adapter */
static const struct can_bittiming_const pcan_usb_pro_fd_const = {
.name = "pcan_usb_pro_fd",
static void b53_set_forwarding(struct b53_device *dev, int enable)
{
+ struct dsa_switch *ds = dev->ds;
u8 mgmt;
b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
mgmt &= ~SM_SW_FWD_EN;
b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt);
+
+ /* Include IMP port in dumb forwarding mode when no tagging protocol is
+ * set
+ */
+ if (ds->ops->get_tag_protocol(ds) == DSA_TAG_PROTO_NONE) {
+ b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_CTRL, &mgmt);
+ mgmt |= B53_MII_DUMB_FWDG_EN;
+ b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_CTRL, mgmt);
+ }
}
static void b53_enable_vlan(struct b53_device *dev, bool enable)
static int b53_switch_reset(struct b53_device *dev)
{
- u8 mgmt;
+ unsigned int timeout = 1000;
+ u8 mgmt, reg;
b53_switch_reset_gpio(dev);
b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, 0x00);
}
+ /* This is specific to 58xx devices here, do not use is58xx() which
+ * covers the larger Starfigther 2 family, including 7445/7278 which
+ * still use this driver as a library and need to perform the reset
+ * earlier.
+ */
+ if (dev->chip_id == BCM58XX_DEVICE_ID) {
+ b53_read8(dev, B53_CTRL_PAGE, B53_SOFTRESET, ®);
+ reg |= SW_RST | EN_SW_RST | EN_CH_RST;
+ b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, reg);
+
+ do {
+ b53_read8(dev, B53_CTRL_PAGE, B53_SOFTRESET, ®);
+ if (!(reg & SW_RST))
+ break;
+
+ usleep_range(1000, 2000);
+ } while (timeout-- > 0);
+
+ if (timeout == 0)
+ return -ETIMEDOUT;
+ }
+
b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
if (!(mgmt & SM_SW_FWD_EN)) {
.vlans = 4096,
.enabled_ports = 0x1ff,
.arl_entries = 4,
- .cpu_port = B53_CPU_PORT_25,
+ .cpu_port = B53_CPU_PORT,
.vta_regs = B53_VTA_REGS,
.duplex_reg = B53_DUPLEX_STAT_GE,
.jumbo_pm_reg = B53_JUMBO_PORT_MASK,
#define B53_UC_FWD_EN BIT(6)
#define B53_MC_FWD_EN BIT(7)
+/* Switch control (8 bit) */
+#define B53_SWITCH_CTRL 0x22
+#define B53_MII_DUMB_FWDG_EN BIT(6)
+
/* (16 bit) */
#define B53_UC_FLOOD_MASK 0x32
#define B53_MC_FLOOD_MASK 0x34
/* Software reset register (8 bit) */
#define B53_SOFTRESET 0x79
#define SW_RST BIT(7)
+#define EN_CH_RST BIT(6)
#define EN_SW_RST BIT(4)
/* Fast Aging Control register (8 bit) */
pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &sdevid);
switch (sdevid) {
case PCI_SUBSYS_DEVID_81XX_BGX:
+ case PCI_SUBSYS_DEVID_81XX_RGX:
max_bgx_per_node = MAX_BGX_PER_CN81XX;
break;
case PCI_SUBSYS_DEVID_83XX_BGX:
/* Subsystem device IDs */
#define PCI_SUBSYS_DEVID_88XX_BGX 0xA126
#define PCI_SUBSYS_DEVID_81XX_BGX 0xA226
+#define PCI_SUBSYS_DEVID_81XX_RGX 0xA254
#define PCI_SUBSYS_DEVID_83XX_BGX 0xA326
#define MAX_BGX_THUNDER 8 /* Max 2 nodes, 4 per node */
struct mtk_mac *mac = netdev_priv(dev);
struct mtk_eth *eth = mac->hw;
struct mtk_tx_dma *itxd, *txd;
- struct mtk_tx_buf *tx_buf;
+ struct mtk_tx_buf *itx_buf, *tx_buf;
dma_addr_t mapped_addr;
unsigned int nr_frags;
int i, n_desc = 1;
fport = (mac->id + 1) << TX_DMA_FPORT_SHIFT;
txd4 |= fport;
- tx_buf = mtk_desc_to_tx_buf(ring, itxd);
- memset(tx_buf, 0, sizeof(*tx_buf));
+ itx_buf = mtk_desc_to_tx_buf(ring, itxd);
+ memset(itx_buf, 0, sizeof(*itx_buf));
if (gso)
txd4 |= TX_DMA_TSO;
return -ENOMEM;
WRITE_ONCE(itxd->txd1, mapped_addr);
- tx_buf->flags |= MTK_TX_FLAGS_SINGLE0;
- dma_unmap_addr_set(tx_buf, dma_addr0, mapped_addr);
- dma_unmap_len_set(tx_buf, dma_len0, skb_headlen(skb));
+ itx_buf->flags |= MTK_TX_FLAGS_SINGLE0;
+ itx_buf->flags |= (!mac->id) ? MTK_TX_FLAGS_FPORT0 :
+ MTK_TX_FLAGS_FPORT1;
+ dma_unmap_addr_set(itx_buf, dma_addr0, mapped_addr);
+ dma_unmap_len_set(itx_buf, dma_len0, skb_headlen(skb));
/* TX SG offload */
txd = itxd;
last_frag * TX_DMA_LS0));
WRITE_ONCE(txd->txd4, fport);
- tx_buf->skb = (struct sk_buff *)MTK_DMA_DUMMY_DESC;
tx_buf = mtk_desc_to_tx_buf(ring, txd);
memset(tx_buf, 0, sizeof(*tx_buf));
-
+ tx_buf->skb = (struct sk_buff *)MTK_DMA_DUMMY_DESC;
tx_buf->flags |= MTK_TX_FLAGS_PAGE0;
+ tx_buf->flags |= (!mac->id) ? MTK_TX_FLAGS_FPORT0 :
+ MTK_TX_FLAGS_FPORT1;
+
dma_unmap_addr_set(tx_buf, dma_addr0, mapped_addr);
dma_unmap_len_set(tx_buf, dma_len0, frag_map_size);
frag_size -= frag_map_size;
}
/* store skb to cleanup */
- tx_buf->skb = skb;
+ itx_buf->skb = skb;
WRITE_ONCE(itxd->txd4, txd4);
WRITE_ONCE(itxd->txd3, (TX_DMA_SWC | TX_DMA_PLEN0(skb_headlen(skb)) |
while ((cpu != dma) && budget) {
u32 next_cpu = desc->txd2;
- int mac;
+ int mac = 0;
desc = mtk_qdma_phys_to_virt(ring, desc->txd2);
if ((desc->txd3 & TX_DMA_OWNER_CPU) == 0)
break;
- mac = (desc->txd4 >> TX_DMA_FPORT_SHIFT) &
- TX_DMA_FPORT_MASK;
- mac--;
-
tx_buf = mtk_desc_to_tx_buf(ring, desc);
+ if (tx_buf->flags & MTK_TX_FLAGS_FPORT1)
+ mac = 1;
+
skb = tx_buf->skb;
if (!skb) {
condition = 1;
struct u64_stats_sync syncp;
};
-/* PDMA descriptor can point at 1-2 segments. This enum allows us to track how
- * memory was allocated so that it can be freed properly
- */
enum mtk_tx_flags {
+ /* PDMA descriptor can point at 1-2 segments. This enum allows us to
+ * track how memory was allocated so that it can be freed properly.
+ */
MTK_TX_FLAGS_SINGLE0 = 0x01,
MTK_TX_FLAGS_PAGE0 = 0x02,
+
+ /* MTK_TX_FLAGS_FPORTx allows tracking which port the transmitted
+ * SKB out instead of looking up through hardware TX descriptor.
+ */
+ MTK_TX_FLAGS_FPORT0 = 0x04,
+ MTK_TX_FLAGS_FPORT1 = 0x08,
};
/* This enum allows us to identify how the clock is defined on the array of the
#define MLX5E_VALID_NUM_MTTS(num_mtts) (MLX5_MTT_OCTW(num_mtts) - 1 <= U16_MAX)
#define MLX5_UMR_ALIGN (2048)
-#define MLX5_MPWRQ_SMALL_PACKET_THRESHOLD (128)
+#define MLX5_MPWRQ_SMALL_PACKET_THRESHOLD (256)
#define MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ (64 * 1024)
#define MLX5E_DEFAULT_LRO_TIMEOUT 32
int idx = 0;
int err = 0;
+ info->data = MAX_NUM_OF_ETHTOOL_RULES;
while ((!err || err == -ENOENT) && idx < info->rule_cnt) {
err = mlx5e_ethtool_get_flow(priv, info, location);
if (!err)
static void mlx5e_update_sw_counters(struct mlx5e_priv *priv)
{
- struct mlx5e_sw_stats *s = &priv->stats.sw;
+ struct mlx5e_sw_stats temp, *s = &temp;
struct mlx5e_rq_stats *rq_stats;
struct mlx5e_sq_stats *sq_stats;
u64 tx_offload_none = 0;
s->link_down_events_phy = MLX5_GET(ppcnt_reg,
priv->stats.pport.phy_counters,
counter_set.phys_layer_cntrs.link_down_events);
+ memcpy(&priv->stats.sw, s, sizeof(*s));
}
static void mlx5e_update_vport_counters(struct mlx5e_priv *priv)
MLX5_SET(query_vport_counter_in, in, op_mod, 0);
MLX5_SET(query_vport_counter_in, in, other_vport, 0);
- memset(out, 0, outlen);
mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen);
}
if (!err && (flow->flags & MLX5E_TC_FLOW_ESWITCH) &&
rep->vport != FDB_UPLINK_VPORT) {
- if (min_inline > esw->offloads.inline_mode) {
+ if (esw->offloads.inline_mode != MLX5_INLINE_MODE_NONE &&
+ esw->offloads.inline_mode < min_inline) {
netdev_warn(priv->netdev,
"Flow is not offloaded due to min inline setting, required %d actual %d\n",
min_inline, esw->offloads.inline_mode);
return 0;
}
-static int gen_vxlan_header_ipv4(struct net_device *out_dev,
- char buf[],
- unsigned char h_dest[ETH_ALEN],
- int ttl,
- __be32 daddr,
- __be32 saddr,
- __be16 udp_dst_port,
- __be32 vx_vni)
+static void gen_vxlan_header_ipv4(struct net_device *out_dev,
+ char buf[], int encap_size,
+ unsigned char h_dest[ETH_ALEN],
+ int ttl,
+ __be32 daddr,
+ __be32 saddr,
+ __be16 udp_dst_port,
+ __be32 vx_vni)
{
- int encap_size = VXLAN_HLEN + sizeof(struct iphdr) + ETH_HLEN;
struct ethhdr *eth = (struct ethhdr *)buf;
struct iphdr *ip = (struct iphdr *)((char *)eth + sizeof(struct ethhdr));
struct udphdr *udp = (struct udphdr *)((char *)ip + sizeof(struct iphdr));
udp->dest = udp_dst_port;
vxh->vx_flags = VXLAN_HF_VNI;
vxh->vx_vni = vxlan_vni_field(vx_vni);
-
- return encap_size;
}
-static int gen_vxlan_header_ipv6(struct net_device *out_dev,
- char buf[],
- unsigned char h_dest[ETH_ALEN],
- int ttl,
- struct in6_addr *daddr,
- struct in6_addr *saddr,
- __be16 udp_dst_port,
- __be32 vx_vni)
+static void gen_vxlan_header_ipv6(struct net_device *out_dev,
+ char buf[], int encap_size,
+ unsigned char h_dest[ETH_ALEN],
+ int ttl,
+ struct in6_addr *daddr,
+ struct in6_addr *saddr,
+ __be16 udp_dst_port,
+ __be32 vx_vni)
{
- int encap_size = VXLAN_HLEN + sizeof(struct ipv6hdr) + ETH_HLEN;
struct ethhdr *eth = (struct ethhdr *)buf;
struct ipv6hdr *ip6h = (struct ipv6hdr *)((char *)eth + sizeof(struct ethhdr));
struct udphdr *udp = (struct udphdr *)((char *)ip6h + sizeof(struct ipv6hdr));
udp->dest = udp_dst_port;
vxh->vx_flags = VXLAN_HF_VNI;
vxh->vx_vni = vxlan_vni_field(vx_vni);
-
- return encap_size;
}
static int mlx5e_create_encap_header_ipv4(struct mlx5e_priv *priv,
struct net_device **out_dev)
{
int max_encap_size = MLX5_CAP_ESW(priv->mdev, max_encap_header_size);
+ int ipv4_encap_size = ETH_HLEN + sizeof(struct iphdr) + VXLAN_HLEN;
struct ip_tunnel_key *tun_key = &e->tun_info.key;
- int encap_size, ttl, err;
struct neighbour *n = NULL;
struct flowi4 fl4 = {};
char *encap_header;
+ int ttl, err;
+
+ if (max_encap_size < ipv4_encap_size) {
+ mlx5_core_warn(priv->mdev, "encap size %d too big, max supported is %d\n",
+ ipv4_encap_size, max_encap_size);
+ return -EOPNOTSUPP;
+ }
- encap_header = kzalloc(max_encap_size, GFP_KERNEL);
+ encap_header = kzalloc(ipv4_encap_size, GFP_KERNEL);
if (!encap_header)
return -ENOMEM;
switch (e->tunnel_type) {
case MLX5_HEADER_TYPE_VXLAN:
- encap_size = gen_vxlan_header_ipv4(*out_dev, encap_header,
- e->h_dest, ttl,
- fl4.daddr,
- fl4.saddr, tun_key->tp_dst,
- tunnel_id_to_key32(tun_key->tun_id));
+ gen_vxlan_header_ipv4(*out_dev, encap_header,
+ ipv4_encap_size, e->h_dest, ttl,
+ fl4.daddr,
+ fl4.saddr, tun_key->tp_dst,
+ tunnel_id_to_key32(tun_key->tun_id));
break;
default:
err = -EOPNOTSUPP;
}
err = mlx5_encap_alloc(priv->mdev, e->tunnel_type,
- encap_size, encap_header, &e->encap_id);
+ ipv4_encap_size, encap_header, &e->encap_id);
out:
if (err && n)
neigh_release(n);
{
int max_encap_size = MLX5_CAP_ESW(priv->mdev, max_encap_header_size);
+ int ipv6_encap_size = ETH_HLEN + sizeof(struct ipv6hdr) + VXLAN_HLEN;
struct ip_tunnel_key *tun_key = &e->tun_info.key;
- int encap_size, err, ttl = 0;
struct neighbour *n = NULL;
struct flowi6 fl6 = {};
char *encap_header;
+ int err, ttl = 0;
+
+ if (max_encap_size < ipv6_encap_size) {
+ mlx5_core_warn(priv->mdev, "encap size %d too big, max supported is %d\n",
+ ipv6_encap_size, max_encap_size);
+ return -EOPNOTSUPP;
+ }
- encap_header = kzalloc(max_encap_size, GFP_KERNEL);
+ encap_header = kzalloc(ipv6_encap_size, GFP_KERNEL);
if (!encap_header)
return -ENOMEM;
switch (e->tunnel_type) {
case MLX5_HEADER_TYPE_VXLAN:
- encap_size = gen_vxlan_header_ipv6(*out_dev, encap_header,
- e->h_dest, ttl,
- &fl6.daddr,
- &fl6.saddr, tun_key->tp_dst,
- tunnel_id_to_key32(tun_key->tun_id));
+ gen_vxlan_header_ipv6(*out_dev, encap_header,
+ ipv6_encap_size, e->h_dest, ttl,
+ &fl6.daddr,
+ &fl6.saddr, tun_key->tp_dst,
+ tunnel_id_to_key32(tun_key->tun_id));
break;
default:
err = -EOPNOTSUPP;
}
err = mlx5_encap_alloc(priv->mdev, e->tunnel_type,
- encap_size, encap_header, &e->encap_id);
+ ipv6_encap_size, encap_header, &e->encap_id);
out:
if (err && n)
neigh_release(n);
struct mlx5_core_dev *dev = devlink_priv(devlink);
struct mlx5_eswitch *esw = dev->priv.eswitch;
int num_vports = esw->enabled_vports;
- int err;
- int vport;
+ int err, vport;
u8 mlx5_mode;
if (!MLX5_CAP_GEN(dev, vport_group_manager))
if (esw->mode == SRIOV_NONE)
return -EOPNOTSUPP;
- if (MLX5_CAP_ETH(dev, wqe_inline_mode) !=
- MLX5_CAP_INLINE_MODE_VPORT_CONTEXT)
+ switch (MLX5_CAP_ETH(dev, wqe_inline_mode)) {
+ case MLX5_CAP_INLINE_MODE_NOT_REQUIRED:
+ if (mode == DEVLINK_ESWITCH_INLINE_MODE_NONE)
+ return 0;
+ /* fall through */
+ case MLX5_CAP_INLINE_MODE_L2:
+ esw_warn(dev, "Inline mode can't be set\n");
return -EOPNOTSUPP;
+ case MLX5_CAP_INLINE_MODE_VPORT_CONTEXT:
+ break;
+ }
if (esw->offloads.num_flows > 0) {
esw_warn(dev, "Can't set inline mode when flows are configured\n");
if (esw->mode == SRIOV_NONE)
return -EOPNOTSUPP;
- if (MLX5_CAP_ETH(dev, wqe_inline_mode) !=
- MLX5_CAP_INLINE_MODE_VPORT_CONTEXT)
- return -EOPNOTSUPP;
-
return esw_inline_mode_to_devlink(esw->offloads.inline_mode, mode);
}
int mlx5_eswitch_inline_mode_get(struct mlx5_eswitch *esw, int nvfs, u8 *mode)
{
+ u8 prev_mlx5_mode, mlx5_mode = MLX5_INLINE_MODE_L2;
struct mlx5_core_dev *dev = esw->dev;
int vport;
- u8 prev_mlx5_mode, mlx5_mode = MLX5_INLINE_MODE_L2;
if (!MLX5_CAP_GEN(dev, vport_group_manager))
return -EOPNOTSUPP;
if (esw->mode == SRIOV_NONE)
return -EOPNOTSUPP;
- if (MLX5_CAP_ETH(dev, wqe_inline_mode) !=
- MLX5_CAP_INLINE_MODE_VPORT_CONTEXT)
- return -EOPNOTSUPP;
+ switch (MLX5_CAP_ETH(dev, wqe_inline_mode)) {
+ case MLX5_CAP_INLINE_MODE_NOT_REQUIRED:
+ mlx5_mode = MLX5_INLINE_MODE_NONE;
+ goto out;
+ case MLX5_CAP_INLINE_MODE_L2:
+ mlx5_mode = MLX5_INLINE_MODE_L2;
+ goto out;
+ case MLX5_CAP_INLINE_MODE_VPORT_CONTEXT:
+ goto query_vports;
+ }
+query_vports:
for (vport = 1; vport <= nvfs; vport++) {
mlx5_query_nic_vport_min_inline(dev, vport, &mlx5_mode);
if (vport > 1 && prev_mlx5_mode != mlx5_mode)
prev_mlx5_mode = mlx5_mode;
}
+out:
*mode = mlx5_mode;
return 0;
}
if (err) {
dev_err(&dev->pdev->dev, "Firmware over %d MS in initializing state, aborting\n",
FW_INIT_TIMEOUT_MILI);
- goto out_err;
+ goto err_cmd_cleanup;
}
err = mlx5_core_enable_hca(dev, 0);
struct mlx5_uars_page *up = container_of(kref, struct mlx5_uars_page, ref_count);
list_del(&up->list);
+ iounmap(up->map);
if (mlx5_cmd_free_uar(up->mdev, up->index))
mlx5_core_warn(up->mdev, "failed to free uar index %d\n", up->index);
kfree(up->reg_bitmap);
((u32)(prio_tc_tbl >> ((7 - prio) * 4)) & 0x7)
static const struct qed_dcbx_app_metadata qed_dcbx_app_update[] = {
- {DCBX_PROTOCOL_ISCSI, "ISCSI", QED_PCI_DEFAULT},
- {DCBX_PROTOCOL_FCOE, "FCOE", QED_PCI_DEFAULT},
- {DCBX_PROTOCOL_ROCE, "ROCE", QED_PCI_DEFAULT},
- {DCBX_PROTOCOL_ROCE_V2, "ROCE_V2", QED_PCI_DEFAULT},
- {DCBX_PROTOCOL_ETH, "ETH", QED_PCI_ETH}
+ {DCBX_PROTOCOL_ISCSI, "ISCSI", QED_PCI_ISCSI},
+ {DCBX_PROTOCOL_FCOE, "FCOE", QED_PCI_FCOE},
+ {DCBX_PROTOCOL_ROCE, "ROCE", QED_PCI_ETH_ROCE},
+ {DCBX_PROTOCOL_ROCE_V2, "ROCE_V2", QED_PCI_ETH_ROCE},
+ {DCBX_PROTOCOL_ETH, "ETH", QED_PCI_ETH},
};
static bool qed_dcbx_app_ethtype(u32 app_info_bitmap)
p_params->ets_cbs,
p_ets->pri_tc_tbl[0], p_params->max_ets_tc);
+ if (p_params->ets_enabled && !p_params->max_ets_tc) {
+ p_params->max_ets_tc = QED_MAX_PFC_PRIORITIES;
+ DP_VERBOSE(p_hwfn, QED_MSG_DCB,
+ "ETS params: max_ets_tc is forced to %d\n",
+ p_params->max_ets_tc);
+ }
+
/* 8 bit tsa and bw data corresponding to each of the 8 TC's are
* encoded in a type u32 array of size 2.
*/
u8 pfc_map = 0;
int i;
+ *pfc &= ~DCBX_PFC_ERROR_MASK;
+
if (p_params->pfc.willing)
*pfc |= DCBX_PFC_WILLING_MASK;
else
{
struct qed_dcbx_get *dcbx_info;
- dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL);
+ dcbx_info = kmalloc(sizeof(*dcbx_info), GFP_ATOMIC);
if (!dcbx_info)
return NULL;
for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i));
+ dcbx_set.config.params.pfc.max_tc = pfc->pfc_cap;
+
ptt = qed_ptt_acquire(hwfn);
if (!ptt)
return -EINVAL;
spin_unlock_irqrestore(&priv->lock, flags);
return NETDEV_TX_BUSY;
}
- entry = priv->cur_tx[q] % (priv->num_tx_ring[q] * NUM_TX_DESC);
- priv->tx_skb[q][entry / NUM_TX_DESC] = skb;
if (skb_put_padto(skb, ETH_ZLEN))
- goto drop;
+ goto exit;
+
+ entry = priv->cur_tx[q] % (priv->num_tx_ring[q] * NUM_TX_DESC);
+ priv->tx_skb[q][entry / NUM_TX_DESC] = skb;
buffer = PTR_ALIGN(priv->tx_align[q], DPTR_ALIGN) +
entry / NUM_TX_DESC * DPTR_ALIGN;
.get_mdio_data = sh_get_mdio,
};
+/* free Tx skb function */
+static int sh_eth_tx_free(struct net_device *ndev, bool sent_only)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ struct sh_eth_txdesc *txdesc;
+ int free_num = 0;
+ int entry;
+ bool sent;
+
+ for (; mdp->cur_tx - mdp->dirty_tx > 0; mdp->dirty_tx++) {
+ entry = mdp->dirty_tx % mdp->num_tx_ring;
+ txdesc = &mdp->tx_ring[entry];
+ sent = !(txdesc->status & cpu_to_le32(TD_TACT));
+ if (sent_only && !sent)
+ break;
+ /* TACT bit must be checked before all the following reads */
+ dma_rmb();
+ netif_info(mdp, tx_done, ndev,
+ "tx entry %d status 0x%08x\n",
+ entry, le32_to_cpu(txdesc->status));
+ /* Free the original skb. */
+ if (mdp->tx_skbuff[entry]) {
+ dma_unmap_single(&ndev->dev, le32_to_cpu(txdesc->addr),
+ le32_to_cpu(txdesc->len) >> 16,
+ DMA_TO_DEVICE);
+ dev_kfree_skb_irq(mdp->tx_skbuff[entry]);
+ mdp->tx_skbuff[entry] = NULL;
+ free_num++;
+ }
+ txdesc->status = cpu_to_le32(TD_TFP);
+ if (entry >= mdp->num_tx_ring - 1)
+ txdesc->status |= cpu_to_le32(TD_TDLE);
+
+ if (sent) {
+ ndev->stats.tx_packets++;
+ ndev->stats.tx_bytes += le32_to_cpu(txdesc->len) >> 16;
+ }
+ }
+ return free_num;
+}
+
/* free skb and descriptor buffer */
static void sh_eth_ring_free(struct net_device *ndev)
{
struct sh_eth_private *mdp = netdev_priv(ndev);
int ringsize, i;
+ if (mdp->rx_ring) {
+ for (i = 0; i < mdp->num_rx_ring; i++) {
+ if (mdp->rx_skbuff[i]) {
+ struct sh_eth_rxdesc *rxdesc = &mdp->rx_ring[i];
+
+ dma_unmap_single(&ndev->dev,
+ le32_to_cpu(rxdesc->addr),
+ ALIGN(mdp->rx_buf_sz, 32),
+ DMA_FROM_DEVICE);
+ }
+ }
+ ringsize = sizeof(struct sh_eth_rxdesc) * mdp->num_rx_ring;
+ dma_free_coherent(NULL, ringsize, mdp->rx_ring,
+ mdp->rx_desc_dma);
+ mdp->rx_ring = NULL;
+ }
+
/* Free Rx skb ringbuffer */
if (mdp->rx_skbuff) {
for (i = 0; i < mdp->num_rx_ring; i++)
kfree(mdp->rx_skbuff);
mdp->rx_skbuff = NULL;
- /* Free Tx skb ringbuffer */
- if (mdp->tx_skbuff) {
- for (i = 0; i < mdp->num_tx_ring; i++)
- dev_kfree_skb(mdp->tx_skbuff[i]);
- }
- kfree(mdp->tx_skbuff);
- mdp->tx_skbuff = NULL;
-
- if (mdp->rx_ring) {
- ringsize = sizeof(struct sh_eth_rxdesc) * mdp->num_rx_ring;
- dma_free_coherent(NULL, ringsize, mdp->rx_ring,
- mdp->rx_desc_dma);
- mdp->rx_ring = NULL;
- }
-
if (mdp->tx_ring) {
+ sh_eth_tx_free(ndev, false);
+
ringsize = sizeof(struct sh_eth_txdesc) * mdp->num_tx_ring;
dma_free_coherent(NULL, ringsize, mdp->tx_ring,
mdp->tx_desc_dma);
mdp->tx_ring = NULL;
}
+
+ /* Free Tx skb ringbuffer */
+ kfree(mdp->tx_skbuff);
+ mdp->tx_skbuff = NULL;
}
/* format skb and descriptor buffer */
update_mac_address(ndev);
}
-/* free Tx skb function */
-static int sh_eth_txfree(struct net_device *ndev)
-{
- struct sh_eth_private *mdp = netdev_priv(ndev);
- struct sh_eth_txdesc *txdesc;
- int free_num = 0;
- int entry;
-
- for (; mdp->cur_tx - mdp->dirty_tx > 0; mdp->dirty_tx++) {
- entry = mdp->dirty_tx % mdp->num_tx_ring;
- txdesc = &mdp->tx_ring[entry];
- if (txdesc->status & cpu_to_le32(TD_TACT))
- break;
- /* TACT bit must be checked before all the following reads */
- dma_rmb();
- netif_info(mdp, tx_done, ndev,
- "tx entry %d status 0x%08x\n",
- entry, le32_to_cpu(txdesc->status));
- /* Free the original skb. */
- if (mdp->tx_skbuff[entry]) {
- dma_unmap_single(&ndev->dev, le32_to_cpu(txdesc->addr),
- le32_to_cpu(txdesc->len) >> 16,
- DMA_TO_DEVICE);
- dev_kfree_skb_irq(mdp->tx_skbuff[entry]);
- mdp->tx_skbuff[entry] = NULL;
- free_num++;
- }
- txdesc->status = cpu_to_le32(TD_TFP);
- if (entry >= mdp->num_tx_ring - 1)
- txdesc->status |= cpu_to_le32(TD_TDLE);
-
- ndev->stats.tx_packets++;
- ndev->stats.tx_bytes += le32_to_cpu(txdesc->len) >> 16;
- }
- return free_num;
-}
-
/* Packet receive function */
static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
{
intr_status, mdp->cur_tx, mdp->dirty_tx,
(u32)ndev->state, edtrr);
/* dirty buffer free */
- sh_eth_txfree(ndev);
+ sh_eth_tx_free(ndev, true);
/* SH7712 BUG */
if (edtrr ^ sh_eth_get_edtrr_trns(mdp)) {
/* Clear Tx interrupts */
sh_eth_write(ndev, intr_status & cd->tx_check, EESR);
- sh_eth_txfree(ndev);
+ sh_eth_tx_free(ndev, true);
netif_wake_queue(ndev);
}
spin_lock_irqsave(&mdp->lock, flags);
if ((mdp->cur_tx - mdp->dirty_tx) >= (mdp->num_tx_ring - 4)) {
- if (!sh_eth_txfree(ndev)) {
+ if (!sh_eth_tx_free(ndev, true)) {
netif_warn(mdp, tx_queued, ndev, "TxFD exhausted.\n");
netif_stop_queue(ndev);
spin_unlock_irqrestore(&mdp->lock, flags);
free_cpumask_var(thread_mask);
}
+ if (count > EFX_MAX_RX_QUEUES) {
+ netif_cond_dbg(efx, probe, efx->net_dev, !rss_cpus, warn,
+ "Reducing number of rx queues from %u to %u.\n",
+ count, EFX_MAX_RX_QUEUES);
+ count = EFX_MAX_RX_QUEUES;
+ }
+
/* If RSS is requested for the PF *and* VFs then we can't write RSS
* table entries that are inaccessible to VFs
*/
#define EFX_RXQ_MIN_ENT 128U
#define EFX_TXQ_MIN_ENT(efx) (2 * efx_tx_max_skb_descs(efx))
-#define EFX_TXQ_MAX_ENT(efx) (EFX_WORKAROUND_35388(efx) ? \
+/* All EF10 architecture NICs steal one bit of the DMAQ size for various
+ * other purposes when counting TxQ entries, so we halve the queue size.
+ */
+#define EFX_TXQ_MAX_ENT(efx) (EFX_WORKAROUND_EF10(efx) ? \
EFX_MAX_DMAQ_SIZE / 2 : EFX_MAX_DMAQ_SIZE)
static inline bool efx_rss_enabled(struct efx_nic *efx)
free_cpumask_var(thread_mask);
}
+ if (count > EF4_MAX_RX_QUEUES) {
+ netif_cond_dbg(efx, probe, efx->net_dev, !rss_cpus, warn,
+ "Reducing number of rx queues from %u to %u.\n",
+ count, EF4_MAX_RX_QUEUES);
+ count = EF4_MAX_RX_QUEUES;
+ }
+
return count;
}
*/
#define EFX_WORKAROUND_SIENA(efx) (efx_nic_rev(efx) == EFX_REV_SIENA_A0)
+#define EFX_WORKAROUND_EF10(efx) (efx_nic_rev(efx) >= EFX_REV_HUNT_A0)
#define EFX_WORKAROUND_10G(efx) 1
/* Bit-bashed I2C reads cause performance drop */
config TI_CPTS
bool "TI Common Platform Time Sync (CPTS) Support"
depends on TI_CPSW || TI_KEYSTONE_NETCP
- depends on PTP_1588_CLOCK
+ depends on POSIX_TIMERS
---help---
This driver supports the Common Platform Time Sync unit of
the CPSW Ethernet Switch and Keystone 2 1g/10g Switch Subsystem.
tristate
depends on TI_CPTS
default y if TI_CPSW=y || TI_KEYSTONE_NETCP=y
+ select NET_PTP_CLASSIFY
+ imply PTP_1588_CLOCK
default m
config TI_KEYSTONE_NETCP
BUG_ON(lp->tx_skbs[i].skb != skb);
#endif
if (skb) {
- dev_kfree_skb(skb);
pci_unmap_single(lp->pci_dev, lp->tx_skbs[i].skb_dma, skb->len, PCI_DMA_TODEVICE);
+ dev_kfree_skb(skb);
lp->tx_skbs[i].skb = NULL;
lp->tx_skbs[i].skb_dma = 0;
}
u32 send_section_cnt;
u32 send_section_size;
unsigned long *send_section_map;
- int map_words;
/* Used for NetVSP initialization protocol */
struct completion channel_init_wait;
struct netvsc_device *net_device;
struct nvsp_message *init_packet;
struct net_device *ndev;
+ size_t map_words;
int node;
net_device = get_outbound_net_device(device);
net_device->send_section_size, net_device->send_section_cnt);
/* Setup state for managing the send buffer. */
- net_device->map_words = DIV_ROUND_UP(net_device->send_section_cnt,
- BITS_PER_LONG);
+ map_words = DIV_ROUND_UP(net_device->send_section_cnt, BITS_PER_LONG);
- net_device->send_section_map = kcalloc(net_device->map_words,
- sizeof(ulong), GFP_KERNEL);
+ net_device->send_section_map = kcalloc(map_words, sizeof(ulong), GFP_KERNEL);
if (net_device->send_section_map == NULL) {
ret = -ENOMEM;
goto cleanup;
unsigned long *map_addr = net_device->send_section_map;
unsigned int i;
- for_each_clear_bit(i, map_addr, net_device->map_words) {
+ for_each_clear_bit(i, map_addr, net_device->send_section_cnt) {
if (sync_test_and_set_bit(i, map_addr) == 0)
return i;
}
static struct aead_request *macsec_alloc_req(struct crypto_aead *tfm,
unsigned char **iv,
- struct scatterlist **sg)
+ struct scatterlist **sg,
+ int num_frags)
{
size_t size, iv_offset, sg_offset;
struct aead_request *req;
size = ALIGN(size, __alignof__(struct scatterlist));
sg_offset = size;
- size += sizeof(struct scatterlist) * (MAX_SKB_FRAGS + 1);
+ size += sizeof(struct scatterlist) * num_frags;
tmp = kmalloc(size, GFP_ATOMIC);
if (!tmp)
{
int ret;
struct scatterlist *sg;
+ struct sk_buff *trailer;
unsigned char *iv;
struct ethhdr *eth;
struct macsec_eth_header *hh;
return ERR_PTR(-EINVAL);
}
- req = macsec_alloc_req(tx_sa->key.tfm, &iv, &sg);
+ ret = skb_cow_data(skb, 0, &trailer);
+ if (unlikely(ret < 0)) {
+ macsec_txsa_put(tx_sa);
+ kfree_skb(skb);
+ return ERR_PTR(ret);
+ }
+
+ req = macsec_alloc_req(tx_sa->key.tfm, &iv, &sg, ret);
if (!req) {
macsec_txsa_put(tx_sa);
kfree_skb(skb);
macsec_fill_iv(iv, secy->sci, pn);
- sg_init_table(sg, MAX_SKB_FRAGS + 1);
+ sg_init_table(sg, ret);
skb_to_sgvec(skb, sg, 0, skb->len);
if (tx_sc->encrypt) {
{
int ret;
struct scatterlist *sg;
+ struct sk_buff *trailer;
unsigned char *iv;
struct aead_request *req;
struct macsec_eth_header *hdr;
if (!skb)
return ERR_PTR(-ENOMEM);
- req = macsec_alloc_req(rx_sa->key.tfm, &iv, &sg);
+ ret = skb_cow_data(skb, 0, &trailer);
+ if (unlikely(ret < 0)) {
+ kfree_skb(skb);
+ return ERR_PTR(ret);
+ }
+ req = macsec_alloc_req(rx_sa->key.tfm, &iv, &sg, ret);
if (!req) {
kfree_skb(skb);
return ERR_PTR(-ENOMEM);
hdr = (struct macsec_eth_header *)skb->data;
macsec_fill_iv(iv, sci, ntohl(hdr->packet_number));
- sg_init_table(sg, MAX_SKB_FRAGS + 1);
+ sg_init_table(sg, ret);
skb_to_sgvec(skb, sg, 0, skb->len);
if (hdr->tci_an & MACSEC_TCI_E) {
static void macvlan_port_destroy(struct net_device *dev)
{
struct macvlan_port *port = macvlan_port_get_rtnl(dev);
+ struct sk_buff *skb;
dev->priv_flags &= ~IFF_MACVLAN_PORT;
netdev_rx_handler_unregister(dev);
* but we need to cancel it and purge left skbs if any.
*/
cancel_work_sync(&port->bc_work);
- __skb_queue_purge(&port->bc_queue);
+
+ while ((skb = __skb_dequeue(&port->bc_queue))) {
+ const struct macvlan_dev *src = MACVLAN_SKB_CB(skb)->src;
+
+ if (src)
+ dev_put(src->dev);
+
+ kfree_skb(skb);
+ }
kfree(port);
}
skb_info->tmo = jiffies + SKB_TIMESTAMP_TIMEOUT;
skb_queue_tail(&dp83640->rx_queue, skb);
schedule_delayed_work(&dp83640->ts_work, SKB_TIMESTAMP_TIMEOUT);
- } else {
- netif_rx_ni(skb);
}
return true;
if (priv->led_mode >= 0)
kszphy_setup_led(phydev, type->led_mode_reg, priv->led_mode);
- if (phy_interrupt_is_valid(phydev)) {
- int ctl = phy_read(phydev, MII_BMCR);
-
- if (ctl < 0)
- return ctl;
-
- ret = phy_write(phydev, MII_BMCR, ctl & ~BMCR_ANENABLE);
- if (ret < 0)
- return ret;
- }
-
return 0;
}
.read_status = genphy_read_status,
.ack_interrupt = kszphy_ack_interrupt,
.config_intr = kszphy_config_intr,
- .get_sset_count = kszphy_get_sset_count,
- .get_strings = kszphy_get_strings,
- .get_stats = kszphy_get_stats,
.suspend = genphy_suspend,
.resume = genphy_resume,
}, {
.read_status = genphy_read_status,
.ack_interrupt = kszphy_ack_interrupt,
.config_intr = kszphy_config_intr,
- .get_sset_count = kszphy_get_sset_count,
- .get_strings = kszphy_get_strings,
- .get_stats = kszphy_get_stats,
.suspend = genphy_suspend,
.resume = genphy_resume,
}, {
.features = PHY_GBIT_FEATURES,
.flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
.driver_data = &ksz9021_type,
+ .probe = kszphy_probe,
.config_init = ksz9021_config_init,
.config_aneg = genphy_config_aneg,
.read_status = genphy_read_status,
.features = PHY_GBIT_FEATURES,
.flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
.driver_data = &ksz9021_type,
+ .probe = kszphy_probe,
.config_init = ksz9031_config_init,
.config_aneg = genphy_config_aneg,
.read_status = ksz9031_read_status,
.config_init = kszphy_config_init,
.config_aneg = ksz8873mll_config_aneg,
.read_status = ksz8873mll_read_status,
- .get_sset_count = kszphy_get_sset_count,
- .get_strings = kszphy_get_strings,
- .get_stats = kszphy_get_stats,
.suspend = genphy_suspend,
.resume = genphy_resume,
}, {
.config_init = kszphy_config_init,
.config_aneg = genphy_config_aneg,
.read_status = genphy_read_status,
- .get_sset_count = kszphy_get_sset_count,
- .get_strings = kszphy_get_strings,
- .get_stats = kszphy_get_stats,
.suspend = genphy_suspend,
.resume = genphy_resume,
}, {
.config_init = kszphy_config_init,
.config_aneg = ksz8873mll_config_aneg,
.read_status = ksz8873mll_read_status,
- .get_sset_count = kszphy_get_sset_count,
- .get_strings = kszphy_get_strings,
- .get_stats = kszphy_get_stats,
.suspend = genphy_suspend,
.resume = genphy_resume,
} };
EXPORT_SYMBOL(phy_mii_ioctl);
/**
- * phy_start_aneg - start auto-negotiation for this PHY device
+ * phy_start_aneg_priv - start auto-negotiation for this PHY device
* @phydev: the phy_device struct
+ * @sync: indicate whether we should wait for the workqueue cancelation
*
* Description: Sanitizes the settings (if we're not autonegotiating
* them), and then calls the driver's config_aneg function.
* If the PHYCONTROL Layer is operating, we change the state to
* reflect the beginning of Auto-negotiation or forcing.
*/
-int phy_start_aneg(struct phy_device *phydev)
+static int phy_start_aneg_priv(struct phy_device *phydev, bool sync)
{
+ bool trigger = 0;
int err;
if (!phydev->drv)
}
}
+ /* Re-schedule a PHY state machine to check PHY status because
+ * negotiation may already be done and aneg interrupt may not be
+ * generated.
+ */
+ if (phy_interrupt_is_valid(phydev) && (phydev->state == PHY_AN)) {
+ err = phy_aneg_done(phydev);
+ if (err > 0) {
+ trigger = true;
+ err = 0;
+ }
+ }
+
out_unlock:
mutex_unlock(&phydev->lock);
+
+ if (trigger)
+ phy_trigger_machine(phydev, sync);
+
return err;
}
+
+/**
+ * phy_start_aneg - start auto-negotiation for this PHY device
+ * @phydev: the phy_device struct
+ *
+ * Description: Sanitizes the settings (if we're not autonegotiating
+ * them), and then calls the driver's config_aneg function.
+ * If the PHYCONTROL Layer is operating, we change the state to
+ * reflect the beginning of Auto-negotiation or forcing.
+ */
+int phy_start_aneg(struct phy_device *phydev)
+{
+ return phy_start_aneg_priv(phydev, true);
+}
EXPORT_SYMBOL(phy_start_aneg);
/**
* state machine runs.
*/
-static void phy_trigger_machine(struct phy_device *phydev, bool sync)
+void phy_trigger_machine(struct phy_device *phydev, bool sync)
{
if (sync)
cancel_delayed_work_sync(&phydev->state_queue);
mutex_unlock(&phydev->lock);
if (needs_aneg)
- err = phy_start_aneg(phydev);
+ err = phy_start_aneg_priv(phydev, false);
else if (do_suspend)
phy_suspend(phydev);
hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI,
TEAM_CMD_OPTIONS_GET);
- if (!hdr)
+ if (!hdr) {
+ nlmsg_free(skb);
return -EMSGSIZE;
+ }
if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
goto nla_put_failure;
hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI,
TEAM_CMD_PORT_LIST_GET);
- if (!hdr)
+ if (!hdr) {
+ nlmsg_free(skb);
return -EMSGSIZE;
+ }
if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
goto nla_put_failure;
optionally with LEDs that indicate traffic
config USB_NET_PLUSB
- tristate "Prolific PL-2301/2302/25A1 based cables"
+ tristate "Prolific PL-2301/2302/25A1/27A1 based cables"
# if the handshake/init/reset problems, from original 'plusb',
# are ever resolved ... then remove "experimental"
depends on USB_USBNET
tx_overhead = 0x40;
len = skb->len;
- if (skb_headroom(skb) < tx_overhead) {
- struct sk_buff *skb2;
-
- skb2 = skb_copy_expand(skb, tx_overhead, 0, flags);
+ if (skb_cow_head(skb, tx_overhead)) {
dev_kfree_skb_any(skb);
- skb = skb2;
- if (!skb)
- return NULL;
+ return NULL;
}
__skb_push(skb, tx_overhead);
{
int len = skb->len;
- if (skb_headroom(skb) < 2) {
- struct sk_buff *skb2 = skb_copy_expand(skb, 2, 0, flags);
+ if (skb_cow_head(skb, 2)) {
dev_kfree_skb_any(skb);
- skb = skb2;
- if (!skb)
- return NULL;
+ return NULL;
}
skb_push(skb, 2);
SET_NETDEV_DEV(net, &interface->dev);
SET_NETDEV_DEVTYPE(net, &hso_type);
- /* registering our net device */
- result = register_netdev(net);
- if (result) {
- dev_err(&interface->dev, "Failed to register device\n");
- goto exit;
- }
-
/* start allocating */
for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) {
hso_net->mux_bulk_rx_urb_pool[i] = usb_alloc_urb(0, GFP_KERNEL);
add_net_device(hso_dev);
+ /* registering our net device */
+ result = register_netdev(net);
+ if (result) {
+ dev_err(&interface->dev, "Failed to register device\n");
+ goto exit;
+ }
+
hso_log_port(hso_dev);
hso_create_rfkill(hso_dev, interface);
pr_info("unloaded\n");
tty_unregister_driver(tty_drv);
- put_tty_driver(tty_drv);
/* deregister the usb driver */
usb_deregister(&hso_driver);
+ put_tty_driver(tty_drv);
}
/* Module definitions */
}
/* We now decide whether we can put our special header into the sk_buff */
- if (skb_cloned(skb) || skb_headroom(skb) < 2) {
- /* no such luck - we make our own */
- struct sk_buff *copied_skb;
- copied_skb = skb_copy_expand(skb, 2, 0, GFP_ATOMIC);
- dev_kfree_skb_irq(skb);
- skb = copied_skb;
- if (!copied_skb) {
- kaweth->stats.tx_errors++;
- netif_start_queue(net);
- spin_unlock_irq(&kaweth->device_lock);
- return NETDEV_TX_OK;
- }
+ if (skb_cow_head(skb, 2)) {
+ kaweth->stats.tx_errors++;
+ netif_start_queue(net);
+ spin_unlock_irq(&kaweth->device_lock);
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
}
private_header = (__le16 *)__skb_push(skb, 2);
{
u32 tx_cmd_a, tx_cmd_b;
- if (skb_headroom(skb) < TX_OVERHEAD) {
- struct sk_buff *skb2;
-
- skb2 = skb_copy_expand(skb, TX_OVERHEAD, 0, flags);
+ if (skb_cow_head(skb, TX_OVERHEAD)) {
dev_kfree_skb_any(skb);
- skb = skb2;
- if (!skb)
- return NULL;
+ return NULL;
}
if (lan78xx_linearize(skb) < 0)
}
static const struct driver_info prolific_info = {
- .description = "Prolific PL-2301/PL-2302/PL-25A1",
+ .description = "Prolific PL-2301/PL-2302/PL-25A1/PL-27A1",
.flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT,
/* some PL-2302 versions seem to fail usb_set_interface() */
.reset = pl_reset,
* Host-to-Host Cable
*/
.driver_info = (unsigned long) &prolific_info,
+
+},
+
+/* super speed cables */
+{
+ USB_DEVICE(0x067b, 0x27a1), /* PL-27A1, no eeprom
+ * also: goobay Active USB 3.0
+ * Data Link,
+ * Unitek Y-3501
+ */
+ .driver_info = (unsigned long) &prolific_info,
},
{ }, // END
module_usb_driver(plusb_driver);
MODULE_AUTHOR("David Brownell");
-MODULE_DESCRIPTION("Prolific PL-2301/2302/25A1 USB Host to Host Link Driver");
+MODULE_DESCRIPTION("Prolific PL-2301/2302/25A1/27A1 USB Host to Host Link Driver");
MODULE_LICENSE("GPL");
{
u32 tx_cmd_a, tx_cmd_b;
- if (skb_headroom(skb) < SMSC75XX_TX_OVERHEAD) {
- struct sk_buff *skb2 =
- skb_copy_expand(skb, SMSC75XX_TX_OVERHEAD, 0, flags);
+ if (skb_cow_head(skb, SMSC75XX_TX_OVERHEAD)) {
dev_kfree_skb_any(skb);
- skb = skb2;
- if (!skb)
- return NULL;
+ return NULL;
}
tx_cmd_a = (u32)(skb->len & TX_CMD_A_LEN) | TX_CMD_A_FCS;
/* We do not advertise SG, so skbs should be already linearized */
BUG_ON(skb_shinfo(skb)->nr_frags);
- if (skb_headroom(skb) < overhead) {
- struct sk_buff *skb2 = skb_copy_expand(skb,
- overhead, 0, flags);
+ /* Make writable and expand header space by overhead if required */
+ if (skb_cow_head(skb, overhead)) {
+ /* Must deallocate here as returning NULL to indicate error
+ * means the skb won't be deallocated in the caller.
+ */
dev_kfree_skb_any(skb);
- skb = skb2;
- if (!skb)
- return NULL;
+ return NULL;
}
if (csum) {
len = skb->len;
- if (skb_headroom(skb) < SR_TX_OVERHEAD) {
- struct sk_buff *skb2;
-
- skb2 = skb_copy_expand(skb, SR_TX_OVERHEAD, 0, flags);
+ if (skb_cow_head(skb, SR_TX_OVERHEAD)) {
dev_kfree_skb_any(skb);
- skb = skb2;
- if (!skb)
- return NULL;
+ return NULL;
}
__skb_push(skb, SR_TX_OVERHEAD);
goto nla_put_failure;
/* rule only needs to appear once */
- nlh->nlmsg_flags &= NLM_F_EXCL;
+ nlh->nlmsg_flags |= NLM_F_EXCL;
frh = nlmsg_data(nlh);
memset(frh, 0, sizeof(*frh));
if (target)
table->entries[state] = target;
+ /*
+ * Don't allow transitions to the deepest state
+ * if it's quirked off.
+ */
+ if (state == ctrl->npss &&
+ (ctrl->quirks & NVME_QUIRK_NO_DEEPEST_PS))
+ continue;
+
/*
* Is this state a useful non-operational state for
* higher-power states to autonomously transition to?
};
static const struct nvme_core_quirk_entry core_quirks[] = {
- /*
- * Seen on a Samsung "SM951 NVMe SAMSUNG 256GB": using APST causes
- * the controller to go out to lunch. It dies when the watchdog
- * timer reads CSTS and gets 0xffffffff.
- */
{
- .vid = 0x144d,
- .fr = "BXW75D0Q",
+ /*
+ * This Toshiba device seems to die using any APST states. See:
+ * https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1678184/comments/11
+ */
+ .vid = 0x1179,
+ .mn = "THNSF5256GPUK TOSHIBA",
.quirks = NVME_QUIRK_NO_APST,
- },
+ }
};
/* match is null-terminated but idstr is space-padded. */
* APST should not be used.
*/
NVME_QUIRK_NO_APST = (1 << 4),
+
+ /*
+ * The deepest sleep state should not be used.
+ */
+ NVME_QUIRK_NO_DEEPEST_PS = (1 << 5),
};
/*
#include <linux/blk-mq-pci.h>
#include <linux/cpu.h>
#include <linux/delay.h>
+#include <linux/dmi.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/genhd.h>
return -ENODEV;
}
+static unsigned long check_dell_samsung_bug(struct pci_dev *pdev)
+{
+ if (pdev->vendor == 0x144d && pdev->device == 0xa802) {
+ /*
+ * Several Samsung devices seem to drop off the PCIe bus
+ * randomly when APST is on and uses the deepest sleep state.
+ * This has been observed on a Samsung "SM951 NVMe SAMSUNG
+ * 256GB", a "PM951 NVMe SAMSUNG 512GB", and a "Samsung SSD
+ * 950 PRO 256GB", but it seems to be restricted to two Dell
+ * laptops.
+ */
+ if (dmi_match(DMI_SYS_VENDOR, "Dell Inc.") &&
+ (dmi_match(DMI_PRODUCT_NAME, "XPS 15 9550") ||
+ dmi_match(DMI_PRODUCT_NAME, "Precision 5510")))
+ return NVME_QUIRK_NO_DEEPEST_PS;
+ }
+
+ return 0;
+}
+
static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
int node, result = -ENOMEM;
struct nvme_dev *dev;
+ unsigned long quirks = id->driver_data;
node = dev_to_node(&pdev->dev);
if (node == NUMA_NO_NODE)
if (result)
goto put_pci;
+ quirks |= check_dell_samsung_bug(pdev);
+
result = nvme_init_ctrl(&dev->ctrl, &pdev->dev, &nvme_pci_ctrl_ops,
- id->driver_data);
+ quirks);
if (result)
goto release_pools;
static const struct of_device_id hisi_pcie_almost_ecam_of_match[] = {
{
- .compatible = "hisilicon,pcie-almost-ecam",
+ .compatible = "hisilicon,hip06-pcie-ecam",
.data = (void *) &hisi_pcie_platform_ops,
},
+ {
+ .compatible = "hisilicon,hip07-pcie-ecam",
+ .data = (void *) &hisi_pcie_platform_ops,
+ },
{},
};
struct scsi_device *sdev = cmd->device;
struct request *rq = cmd->request;
bool is_mq = (rq->mq_ctx != NULL);
- int error;
+ int error = BLKPREP_KILL;
if (WARN_ON_ONCE(!blk_rq_nr_phys_segments(rq)))
- return -EINVAL;
+ goto err_exit;
error = scsi_init_sgtable(rq, &cmd->sdb);
if (error)
}
/*
- * If the GPIO is configured as input, change the direction to output
- * and set the GPIO as active.
+ * If the GPIO is not known to be already configured as output, that
+ * is, if gpiod_get_direction returns either GPIOF_DIR_IN or -EINVAL,
+ * change the direction to output and set the GPIO as active.
* Do not force the GPIO to active when it was already output as it
* could cause backlight flickering or we would enable the backlight too
* early. Leave the decision of the initial backlight state for later.
*/
if (pb->enable_gpio &&
- gpiod_get_direction(pb->enable_gpio) == GPIOF_DIR_IN)
+ gpiod_get_direction(pb->enable_gpio) != GPIOF_DIR_OUT)
gpiod_direction_output(pb->enable_gpio, 1);
pb->power_supply = devm_regulator_get(&pdev->dev, "power");
struct btrfs_qgroup *qgroup,
u64 num_bytes)
{
- btrfs_warn(fs_info,
+#ifdef CONFIG_BTRFS_DEBUG
+ WARN_ON(qgroup->reserved < num_bytes);
+ btrfs_debug(fs_info,
"qgroup %llu reserved space underflow, have: %llu, to free: %llu",
qgroup->qgroupid, qgroup->reserved, num_bytes);
+#endif
qgroup->reserved = 0;
}
/*
qgroup->excl += sign * num_bytes;
qgroup->excl_cmpr += sign * num_bytes;
if (sign > 0) {
- if (WARN_ON(qgroup->reserved < num_bytes))
+ if (qgroup->reserved < num_bytes)
report_reserved_underflow(fs_info, qgroup, num_bytes);
else
qgroup->reserved -= num_bytes;
WARN_ON(sign < 0 && qgroup->excl < num_bytes);
qgroup->excl += sign * num_bytes;
if (sign > 0) {
- if (WARN_ON(qgroup->reserved < num_bytes))
+ if (qgroup->reserved < num_bytes)
report_reserved_underflow(fs_info, qgroup,
num_bytes);
else
qg = unode_aux_to_qgroup(unode);
- if (WARN_ON(qg->reserved < num_bytes))
+ if (qg->reserved < num_bytes)
report_reserved_underflow(fs_info, qg, num_bytes);
else
qg->reserved -= num_bytes;
if (inode_dirty_flags)
__mark_inode_dirty(inode, inode_dirty_flags);
- if (ia_valid & ATTR_MODE) {
- err = posix_acl_chmod(inode, attr->ia_mode);
- if (err)
- goto out_put;
- }
if (mask) {
req->r_inode = inode;
dout("setattr %p result=%d (%s locally, %d remote)\n", inode, err,
ceph_cap_string(dirtied), mask);
- ceph_mdsc_put_request(req);
- if (mask & CEPH_SETATTR_SIZE)
- __ceph_do_pending_vmtruncate(inode);
- ceph_free_cap_flush(prealloc_cf);
- return err;
-out_put:
ceph_mdsc_put_request(req);
ceph_free_cap_flush(prealloc_cf);
+
+ if (err >= 0 && (mask & CEPH_SETATTR_SIZE))
+ __ceph_do_pending_vmtruncate(inode);
+
return err;
}
if (err != 0)
return err;
- return __ceph_setattr(inode, attr);
+ err = __ceph_setattr(inode, attr);
+
+ if (err >= 0 && (attr->ia_valid & ATTR_MODE))
+ err = posix_acl_chmod(inode, attr->ia_mode);
+
+ return err;
}
/*
return !cfile->srch_inf.endOfSearch && !cfile->invalidHandle;
}
+static bool
+cifs_can_echo(struct TCP_Server_Info *server)
+{
+ if (server->tcpStatus == CifsGood)
+ return true;
+
+ return false;
+}
+
struct smb_version_operations smb1_operations = {
.send_cancel = send_nt_cancel,
.compare_fids = cifs_compare_fids,
.get_dfs_refer = CIFSGetDFSRefer,
.qfs_tcon = cifs_qfs_tcon,
.is_path_accessible = cifs_is_path_accessible,
+ .can_echo = cifs_can_echo,
.query_path_info = cifs_query_path_info,
.query_file_info = cifs_query_file_info,
.get_srv_inum = cifs_get_srv_inum,
{
unsigned int len, v, hdr, dlen;
u32 max_blocksize = svc_max_payload(rqstp);
+ struct kvec *head = rqstp->rq_arg.head;
+ struct kvec *tail = rqstp->rq_arg.tail;
p = decode_fh(p, &args->fh);
if (!p)
args->count = ntohl(*p++);
args->stable = ntohl(*p++);
len = args->len = ntohl(*p++);
+ if ((void *)p > head->iov_base + head->iov_len)
+ return 0;
/*
* The count must equal the amount of data passed.
*/
* Check to make sure that we got the right number of
* bytes.
*/
- hdr = (void*)p - rqstp->rq_arg.head[0].iov_base;
- dlen = rqstp->rq_arg.head[0].iov_len + rqstp->rq_arg.page_len
- + rqstp->rq_arg.tail[0].iov_len - hdr;
+ hdr = (void*)p - head->iov_base;
+ dlen = head->iov_len + rqstp->rq_arg.page_len + tail->iov_len - hdr;
/*
* Round the length of the data which was specified up to
* the next multiple of XDR units and then compare that
len = args->len = max_blocksize;
}
rqstp->rq_vec[0].iov_base = (void*)p;
- rqstp->rq_vec[0].iov_len = rqstp->rq_arg.head[0].iov_len - hdr;
+ rqstp->rq_vec[0].iov_len = head->iov_len - hdr;
v = 0;
while (len > rqstp->rq_vec[v].iov_len) {
len -= rqstp->rq_vec[v].iov_len;
/* first copy and check from the first page */
old = (char*)p;
vec = &rqstp->rq_arg.head[0];
+ if ((void *)old > vec->iov_base + vec->iov_len)
+ return 0;
avail = vec->iov_len - (old - (char*)vec->iov_base);
while (len && avail && *old) {
*new++ = *old++;
int nfsd4_max_reply(struct svc_rqst *rqstp, struct nfsd4_op *op)
{
- if (op->opnum == OP_ILLEGAL)
+ if (op->opnum == OP_ILLEGAL || op->status == nfserr_notsupp)
return op_encode_hdr_size * sizeof(__be32);
BUG_ON(OPDESC(op)->op_rsize_bop == NULL);
return nfserr;
}
+/*
+ * A write procedure can have a large argument, and a read procedure can
+ * have a large reply, but no NFSv2 or NFSv3 procedure has argument and
+ * reply that can both be larger than a page. The xdr code has taken
+ * advantage of this assumption to be a sloppy about bounds checking in
+ * some cases. Pending a rewrite of the NFSv2/v3 xdr code to fix that
+ * problem, we enforce these assumptions here:
+ */
+static bool nfs_request_too_big(struct svc_rqst *rqstp,
+ struct svc_procedure *proc)
+{
+ /*
+ * The ACL code has more careful bounds-checking and is not
+ * susceptible to this problem:
+ */
+ if (rqstp->rq_prog != NFS_PROGRAM)
+ return false;
+ /*
+ * Ditto NFSv4 (which can in theory have argument and reply both
+ * more than a page):
+ */
+ if (rqstp->rq_vers >= 4)
+ return false;
+ /* The reply will be small, we're OK: */
+ if (proc->pc_xdrressize > 0 &&
+ proc->pc_xdrressize < XDR_QUADLEN(PAGE_SIZE))
+ return false;
+
+ return rqstp->rq_arg.len > PAGE_SIZE;
+}
+
int
nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp)
{
rqstp->rq_vers, rqstp->rq_proc);
proc = rqstp->rq_procinfo;
+ if (nfs_request_too_big(rqstp, proc)) {
+ dprintk("nfsd: NFSv%d argument too large\n", rqstp->rq_vers);
+ *statp = rpc_garbage_args;
+ return 1;
+ }
/*
* Give the xdr decoder a chance to change this if it wants
* (necessary in the NFSv4.0 compound case)
struct nfsd_writeargs *args)
{
unsigned int len, hdr, dlen;
+ struct kvec *head = rqstp->rq_arg.head;
int v;
p = decode_fh(p, &args->fh);
* Check to make sure that we got the right number of
* bytes.
*/
- hdr = (void*)p - rqstp->rq_arg.head[0].iov_base;
- dlen = rqstp->rq_arg.head[0].iov_len + rqstp->rq_arg.page_len
- - hdr;
+ hdr = (void*)p - head->iov_base;
+ if (hdr > head->iov_len)
+ return 0;
+ dlen = head->iov_len + rqstp->rq_arg.page_len - hdr;
/*
* Round the length of the data which was specified up to
return 0;
rqstp->rq_vec[0].iov_base = (void*)p;
- rqstp->rq_vec[0].iov_len = rqstp->rq_arg.head[0].iov_len - hdr;
+ rqstp->rq_vec[0].iov_len = head->iov_len - hdr;
v = 0;
while (len > rqstp->rq_vec[v].iov_len) {
len -= rqstp->rq_vec[v].iov_len;
return ERR_PTR(-ENOMEM);
}
d_instantiate(dentry, inode);
+ dentry->d_flags |= DCACHE_RCUACCESS;
dentry->d_fsdata = (void *)ns->ops;
d = atomic_long_cmpxchg(&ns->stashed, 0, (unsigned long)dentry);
if (d) {
/**
* sys_statx - System call to get enhanced stats
* @dfd: Base directory to pathwalk from *or* fd to stat.
- * @filename: File to stat *or* NULL.
+ * @filename: File to stat or "" with AT_EMPTY_PATH
* @flags: AT_* flags to control pathwalk.
* @mask: Parts of statx struct actually required.
* @buffer: Result buffer.
*
- * Note that if filename is NULL, then it does the equivalent of fstat() using
- * dfd to indicate the file of interest.
+ * Note that fstat() can be emulated by setting dfd to the fd of interest,
+ * supplying "" as the filename and setting AT_EMPTY_PATH in the flags.
*/
SYSCALL_DEFINE5(statx,
int, dfd, const char __user *, filename, unsigned, flags,
if ((flags & AT_STATX_SYNC_TYPE) == AT_STATX_SYNC_TYPE)
return -EINVAL;
- if (filename)
- error = vfs_statx(dfd, filename, flags, &stat, mask);
- else
- error = vfs_statx_fd(dfd, &stat, mask, flags);
+ error = vfs_statx(dfd, filename, flags, &stat, mask);
if (error)
return error;
#include <linux/math64.h>
#include <linux/uaccess.h>
#include <linux/random.h>
+#include <linux/ctype.h>
#include "ubifs.h"
static DEFINE_SPINLOCK(dbg_lock);
break;
}
- pr_err("\t%d: %s (%s)\n",
- count++, dent->name, get_dent_type(dent->type));
+ pr_err("\t%d: inode %llu, type %s, len %d\n",
+ count++, (unsigned long long) le64_to_cpu(dent->inum),
+ get_dent_type(dent->type),
+ le16_to_cpu(dent->nlen));
fname_name(&nm) = dent->name;
fname_len(&nm) = le16_to_cpu(dent->nlen);
pr_err("(bad name length, not printing, bad or corrupted node)");
else {
for (i = 0; i < nlen && dent->name[i]; i++)
- pr_cont("%c", dent->name[i]);
+ pr_cont("%c", isprint(dent->name[i]) ?
+ dent->name[i] : '?');
}
pr_cont("\n");
}
while (1) {
- dbg_gen("feed '%s', ino %llu, new f_pos %#x",
- dent->name, (unsigned long long)le64_to_cpu(dent->inum),
+ dbg_gen("ino %llu, new f_pos %#x",
+ (unsigned long long)le64_to_cpu(dent->inum),
key_hash_flash(c, &dent->key));
ubifs_assert(le64_to_cpu(dent->ch.sqnum) >
ubifs_inode(dir)->creat_sqnum);
goto out_fname;
lock_2_inodes(dir, inode);
+
+ /* Handle O_TMPFILE corner case, it is allowed to link a O_TMPFILE. */
+ if (inode->i_nlink == 0)
+ ubifs_delete_orphan(c, inode->i_ino);
+
inc_nlink(inode);
ihold(inode);
inode->i_ctime = ubifs_current_time(inode);
dir->i_size -= sz_change;
dir_ui->ui_size = dir->i_size;
drop_nlink(inode);
+ if (inode->i_nlink == 0)
+ ubifs_add_orphan(c, inode->i_ino);
unlock_2_inodes(dir, inode);
ubifs_release_budget(c, &req);
iput(inode);
}
err = fscrypt_setup_filename(dir, &dentry->d_name, 0, &nm);
- if (err)
+ if (err) {
+ kfree(dev);
goto out_budg;
+ }
sz_change = CALC_DENT_SIZE(fname_len(&nm));
unsigned int uninitialized_var(saved_nlink);
struct fscrypt_name old_nm, new_nm;
- if (flags & ~RENAME_NOREPLACE)
- return -EINVAL;
-
/*
* Budget request settings: deletion direntry, new direntry, removing
* the old inode, and changing old and new parent directory inodes.
return crypto_alloc_instance2(name, alg, ahash_instance_headroom());
}
+static inline void ahash_request_complete(struct ahash_request *req, int err)
+{
+ req->base.complete(&req->base, err);
+}
+
+static inline u32 ahash_request_flags(struct ahash_request *req)
+{
+ return req->base.flags;
+}
+
static inline struct crypto_ahash *crypto_spawn_ahash(
struct crypto_ahash_spawn *spawn)
{
unsigned int state; /* function state */
#define SDIO_STATE_PRESENT (1<<0) /* present in sysfs */
- u8 tmpbuf[4]; /* DMA:able scratch buffer */
+ u8 *tmpbuf; /* DMA:able scratch buffer */
unsigned num_info; /* number of info strings */
const char **info; /* info strings */
void phy_mac_interrupt(struct phy_device *phydev, int new_link);
void phy_start_machine(struct phy_device *phydev);
void phy_stop_machine(struct phy_device *phydev);
+void phy_trigger_machine(struct phy_device *phydev, bool sync);
int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd);
int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd);
int phy_ethtool_ksettings_get(struct phy_device *phydev,
#define RTF_PREF(pref) ((pref) << 27)
#define RTF_PREF_MASK 0x18000000
-#define RTF_PCPU 0x40000000
+#define RTF_PCPU 0x40000000 /* read-only: can not be set by user */
#define RTF_LOCAL 0x80000000
if (insn->imm == BPF_FUNC_xdp_adjust_head)
prog->xdp_adjust_head = 1;
if (insn->imm == BPF_FUNC_tail_call) {
+ /* If we tail call into other programs, we
+ * cannot make any assumptions since they
+ * can be replaced dynamically during runtime
+ * in the program array.
+ */
+ prog->cb_access = 1;
+ prog->xdp_adjust_head = 1;
+
/* mark bpf_tail_call as different opcode
* to avoid conditional branch in
* interpeter for every normal call
int ncpus, v, vecs_to_assign, vecs_per_node;
/* Spread the vectors per node */
- vecs_per_node = (affv - curvec) / nodes;
+ vecs_per_node = (affv - (curvec - affd->pre_vectors)) / nodes;
/* Get the cpus on this node which are in the mask */
cpumask_and(nmsk, cpu_online_mask, cpumask_of_node(n));
(LOCKF_USED_IN_HARDIRQ_READ | LOCKF_USED_IN_SOFTIRQ_READ)
/*
- * CONFIG_PROVE_LOCKING_SMALL is defined for sparc. Sparc requires .text,
+ * CONFIG_LOCKDEP_SMALL is defined for sparc. Sparc requires .text,
* .data and .bss to fit in required 32MB limit for the kernel. With
- * PROVE_LOCKING we could go over this limit and cause system boot-up problems.
+ * CONFIG_LOCKDEP we could go over this limit and cause system boot-up problems.
* So, reduce the static allocations for lockdeps related structures so that
* everything fits in current required size limit.
*/
-#ifdef CONFIG_PROVE_LOCKING_SMALL
+#ifdef CONFIG_LOCKDEP_SMALL
/*
* MAX_LOCKDEP_ENTRIES is the maximum number of lock dependencies
* we track.
trace_free_pid_list(pid_list);
}
+void ftrace_clear_pids(struct trace_array *tr)
+{
+ mutex_lock(&ftrace_lock);
+
+ clear_ftrace_pids(tr);
+
+ mutex_unlock(&ftrace_lock);
+}
+
static void ftrace_pid_reset(struct trace_array *tr)
{
mutex_lock(&ftrace_lock);
int ring_buffer_iter_empty(struct ring_buffer_iter *iter)
{
struct ring_buffer_per_cpu *cpu_buffer;
+ struct buffer_page *reader;
+ struct buffer_page *head_page;
+ struct buffer_page *commit_page;
+ unsigned commit;
cpu_buffer = iter->cpu_buffer;
- return iter->head_page == cpu_buffer->commit_page &&
- iter->head == rb_commit_index(cpu_buffer);
+ /* Remember, trace recording is off when iterator is in use */
+ reader = cpu_buffer->reader_page;
+ head_page = cpu_buffer->head_page;
+ commit_page = cpu_buffer->commit_page;
+ commit = rb_page_commit(commit_page);
+
+ return ((iter->head_page == commit_page && iter->head == commit) ||
+ (iter->head_page == reader && commit_page == head_page &&
+ head_page->read == commit &&
+ iter->head == rb_page_commit(cpu_buffer->reader_page)));
}
EXPORT_SYMBOL_GPL(ring_buffer_iter_empty);
return ret;
out_reg:
- ret = register_ftrace_function_probe(glob, ops, count);
+ ret = alloc_snapshot(&global_trace);
+ if (ret < 0)
+ goto out;
- if (ret >= 0)
- alloc_snapshot(&global_trace);
+ ret = register_ftrace_function_probe(glob, ops, count);
+ out:
return ret < 0 ? ret : 0;
}
tracing_set_nop(tr);
event_trace_del_tracer(tr);
+ ftrace_clear_pids(tr);
ftrace_destroy_function_files(tr);
tracefs_remove_recursive(tr->dir);
free_trace_buffers(tr);
void ftrace_init_tracefs(struct trace_array *tr, struct dentry *d_tracer);
void ftrace_init_tracefs_toplevel(struct trace_array *tr,
struct dentry *d_tracer);
+void ftrace_clear_pids(struct trace_array *tr);
#else
static inline int ftrace_trace_task(struct trace_array *tr)
{
static inline void ftrace_reset_array_ops(struct trace_array *tr) { }
static inline void ftrace_init_tracefs(struct trace_array *tr, struct dentry *d) { }
static inline void ftrace_init_tracefs_toplevel(struct trace_array *tr, struct dentry *d) { }
+static inline void ftrace_clear_pids(struct trace_array *tr) { }
/* ftace_func_t type is not defined, use macro instead of static inline */
#define ftrace_init_array_ops(tr, func) do { } while (0)
#endif /* CONFIG_FUNCTION_TRACER */
For more details, see Documentation/locking/lockdep-design.txt.
-config PROVE_LOCKING_SMALL
- bool
-
config LOCKDEP
bool
depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
select KALLSYMS
select KALLSYMS_ALL
+config LOCKDEP_SMALL
+ bool
+
config LOCK_STAT
bool "Lock usage statistics"
depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
unlock_page(page);
put_page(page);
} else {
- putback_lru_page(page);
dec_node_page_state(page, NR_ISOLATED_ANON +
page_is_file_cache(page));
+ putback_lru_page(page);
}
}
}
{
int migratetype = 0;
int batch_free = 0;
- unsigned long nr_scanned, flags;
+ unsigned long nr_scanned;
bool isolated_pageblocks;
- spin_lock_irqsave(&zone->lock, flags);
+ spin_lock(&zone->lock);
isolated_pageblocks = has_isolate_pageblock(zone);
nr_scanned = node_page_state(zone->zone_pgdat, NR_PAGES_SCANNED);
if (nr_scanned)
trace_mm_page_pcpu_drain(page, 0, mt);
} while (--count && --batch_free && !list_empty(list));
}
- spin_unlock_irqrestore(&zone->lock, flags);
+ spin_unlock(&zone->lock);
}
static void free_one_page(struct zone *zone,
unsigned int order,
int migratetype)
{
- unsigned long nr_scanned, flags;
- spin_lock_irqsave(&zone->lock, flags);
- __count_vm_events(PGFREE, 1 << order);
+ unsigned long nr_scanned;
+ spin_lock(&zone->lock);
nr_scanned = node_page_state(zone->zone_pgdat, NR_PAGES_SCANNED);
if (nr_scanned)
__mod_node_page_state(zone->zone_pgdat, NR_PAGES_SCANNED, -nr_scanned);
migratetype = get_pfnblock_migratetype(page, pfn);
}
__free_one_page(page, pfn, zone, order, migratetype);
- spin_unlock_irqrestore(&zone->lock, flags);
+ spin_unlock(&zone->lock);
}
static void __meminit __init_single_page(struct page *page, unsigned long pfn,
static void __free_pages_ok(struct page *page, unsigned int order)
{
+ unsigned long flags;
int migratetype;
unsigned long pfn = page_to_pfn(page);
return;
migratetype = get_pfnblock_migratetype(page, pfn);
+ local_irq_save(flags);
+ __count_vm_events(PGFREE, 1 << order);
free_one_page(page_zone(page), page, pfn, order, migratetype);
+ local_irq_restore(flags);
}
static void __init __free_pages_boot_core(struct page *page, unsigned int order)
int migratetype, bool cold)
{
int i, alloced = 0;
- unsigned long flags;
- spin_lock_irqsave(&zone->lock, flags);
+ spin_lock(&zone->lock);
for (i = 0; i < count; ++i) {
struct page *page = __rmqueue(zone, order, migratetype);
if (unlikely(page == NULL))
* pages added to the pcp list.
*/
__mod_zone_page_state(zone, NR_FREE_PAGES, -(i << order));
- spin_unlock_irqrestore(&zone->lock, flags);
+ spin_unlock(&zone->lock);
return alloced;
}
{
struct zone *zone = page_zone(page);
struct per_cpu_pages *pcp;
+ unsigned long flags;
unsigned long pfn = page_to_pfn(page);
int migratetype;
- if (in_interrupt()) {
- __free_pages_ok(page, 0);
- return;
- }
-
if (!free_pcp_prepare(page))
return;
migratetype = get_pfnblock_migratetype(page, pfn);
set_pcppage_migratetype(page, migratetype);
- preempt_disable();
+ local_irq_save(flags);
+ __count_vm_event(PGFREE);
/*
* We only track unmovable, reclaimable and movable on pcp lists.
migratetype = MIGRATE_MOVABLE;
}
- __count_vm_event(PGFREE);
pcp = &this_cpu_ptr(zone->pageset)->pcp;
if (!cold)
list_add(&page->lru, &pcp->lists[migratetype]);
}
out:
- preempt_enable();
+ local_irq_restore(flags);
}
/*
{
struct page *page;
- VM_BUG_ON(in_interrupt());
-
do {
if (list_empty(list)) {
pcp->count += rmqueue_bulk(zone, 0,
struct list_head *list;
bool cold = ((gfp_flags & __GFP_COLD) != 0);
struct page *page;
+ unsigned long flags;
- preempt_disable();
+ local_irq_save(flags);
pcp = &this_cpu_ptr(zone->pageset)->pcp;
list = &pcp->lists[migratetype];
page = __rmqueue_pcplist(zone, migratetype, cold, pcp, list);
__count_zid_vm_events(PGALLOC, page_zonenum(page), 1 << order);
zone_statistics(preferred_zone, zone);
}
- preempt_enable();
+ local_irq_restore(flags);
return page;
}
unsigned long flags;
struct page *page;
- if (likely(order == 0) && !in_interrupt()) {
+ if (likely(order == 0)) {
page = rmqueue_pcplist(preferred_zone, zone, order,
gfp_flags, migratetype);
goto out;
{
int ret __maybe_unused;
- mm_percpu_wq = alloc_workqueue("mm_percpu_wq",
- WQ_FREEZABLE|WQ_MEM_RECLAIM, 0);
+ mm_percpu_wq = alloc_workqueue("mm_percpu_wq", WQ_MEM_RECLAIM, 0);
#ifdef CONFIG_SMP
ret = cpuhp_setup_state_nocalls(CPUHP_MM_VMSTAT_DEAD, "mm/vmstat:dead",
{
struct net_bridge *br = netdev_priv(dev);
+ br_multicast_dev_del(br);
br_multicast_uninit_stats(br);
br_vlan_flush(br);
free_percpu(br->stats);
br_fdb_delete_by_port(br, NULL, 0, 1);
- br_multicast_dev_del(br);
cancel_delayed_work_sync(&br->gc_work);
br_sysfs_delbr(br->dev);
{
unsigned long flags;
+ if (unlikely(!skb))
+ return;
+
if (likely(atomic_read(&skb->users) == 1)) {
smp_rmb();
atomic_set(&skb->users, 0);
while ((skb = skb_dequeue(&npinfo->txq))) {
struct net_device *dev = skb->dev;
struct netdev_queue *txq;
+ unsigned int q_index;
if (!netif_device_present(dev) || !netif_running(dev)) {
kfree_skb(skb);
continue;
}
- txq = skb_get_tx_queue(dev, skb);
-
local_irq_save(flags);
+ /* check if skb->queue_mapping is still valid */
+ q_index = skb_get_queue_mapping(skb);
+ if (unlikely(q_index >= dev->real_num_tx_queues)) {
+ q_index = q_index % dev->real_num_tx_queues;
+ skb_set_queue_mapping(skb, q_index);
+ }
+ txq = netdev_get_tx_queue(dev, q_index);
HARD_TX_LOCK(dev, txq, smp_processor_id());
if (netif_xmit_frozen_or_stopped(txq) ||
netpoll_start_xmit(skb, dev, txq) != NETDEV_TX_OK) {
skb_set_tail_pointer(skb, len);
}
+ if (!skb->sk || skb->destructor == sock_edemux)
+ skb_condense(skb);
return 0;
}
EXPORT_SYMBOL(___pskb_trim);
if (sg && csum && (mss != GSO_BY_FRAGS)) {
if (!(features & NETIF_F_GSO_PARTIAL)) {
struct sk_buff *iter;
+ unsigned int frag_len;
if (!list_skb ||
!net_gso_ok(features, skb_shinfo(head_skb)->gso_type))
goto normal;
- /* Split the buffer at the frag_list pointer.
- * This is based on the assumption that all
- * buffers in the chain excluding the last
- * containing the same amount of data.
+ /* If we get here then all the required
+ * GSO features except frag_list are supported.
+ * Try to split the SKB to multiple GSO SKBs
+ * with no frag_list.
+ * Currently we can do that only when the buffers don't
+ * have a linear part and all the buffers except
+ * the last are of the same length.
*/
+ frag_len = list_skb->len;
skb_walk_frags(head_skb, iter) {
+ if (frag_len != iter->len && iter->next)
+ goto normal;
if (skb_headlen(iter))
goto normal;
len -= iter->len;
}
+
+ if (len != frag_len)
+ goto normal;
}
/* GSO partial only requires that we trim off any excess that
serr->ee.ee_origin = SO_EE_ORIGIN_TIMESTAMPING;
serr->ee.ee_info = tstype;
serr->opt_stats = opt_stats;
+ serr->header.h4.iif = skb->dev ? skb->dev->ifindex : 0;
if (sk->sk_tsflags & SOF_TIMESTAMPING_OPT_ID) {
serr->ee.ee_data = skb_shinfo(skb)->tskey;
if (sk->sk_protocol == IPPROTO_TCP &&
if (*(u8 *)iph != 0x45)
goto out_unlock;
+ if (ip_is_fragment(iph))
+ goto out_unlock;
+
if (unlikely(ip_fast_csum((u8 *)iph, 5)))
goto out_unlock;
return false;
/* Support IP_PKTINFO on tstamp packets if requested, to correlate
- * timestamp with egress dev. Not possible for packets without dev
+ * timestamp with egress dev. Not possible for packets without iif
* or without payload (SOF_TIMESTAMPING_OPT_TSONLY).
*/
- if ((!(sk->sk_tsflags & SOF_TIMESTAMPING_OPT_CMSG)) ||
- (!skb->dev))
+ info = PKTINFO_SKB_CB(skb);
+ if (!(sk->sk_tsflags & SOF_TIMESTAMPING_OPT_CMSG) ||
+ !info->ipi_ifindex)
return false;
- info = PKTINFO_SKB_CB(skb);
info->ipi_spec_dst.s_addr = ip_hdr(skb)->saddr;
- info->ipi_ifindex = skb->dev->ifindex;
return true;
}
case MCAST_LEAVE_GROUP:
case MCAST_LEAVE_SOURCE_GROUP:
case MCAST_UNBLOCK_SOURCE:
+ case IP_ROUTER_ALERT:
return true;
}
return false;
struct net *net = sock_net(sk);
struct mr_table *mrt;
- rtnl_lock();
+ ASSERT_RTNL();
ipmr_for_each_table(mrt, net) {
if (sk == rtnl_dereference(mrt->mroute_sk)) {
IPV4_DEVCONF_ALL(net, MC_FORWARDING)--;
mroute_clean_tables(mrt, false);
}
}
- rtnl_unlock();
}
/* Socket options and virtual interface manipulation. The whole
if (sk != rcu_access_pointer(mrt->mroute_sk)) {
ret = -EACCES;
} else {
- /* We need to unlock here because mrtsock_destruct takes
- * care of rtnl itself and we can't change that due to
- * the IP_ROUTER_ALERT setsockopt which runs without it.
- */
- rtnl_unlock();
ret = ip_ra_control(sk, 0, NULL);
- goto out;
+ goto out_unlock;
}
break;
case MRT_ADD_VIF:
}
out_unlock:
rtnl_unlock();
-out:
return ret;
}
/*
* Raw sockets may have direct kernel references. Kill them.
*/
+ rtnl_lock();
ip_ra_control(sk, 0, NULL);
+ rtnl_unlock();
sk_common_release(sk);
}
}
/* L3 master device is the loopback for that domain */
- dev_out = l3mdev_master_dev_rcu(dev_out) ? : net->loopback_dev;
+ dev_out = l3mdev_master_dev_rcu(FIB_RES_DEV(res)) ? :
+ net->loopback_dev;
fl4->flowi4_oif = dev_out->ifindex;
flags |= RTCF_LOCAL;
goto make_route;
}
out:
rcu_read_unlock();
+ memset(icsk->icsk_ca_priv, 0, sizeof(icsk->icsk_ca_priv));
- /* Clear out private data before diag gets it and
- * the ca has not been initialized.
- */
- if (ca->get_info)
- memset(icsk->icsk_ca_priv, 0, sizeof(icsk->icsk_ca_priv));
if (ca->flags & TCP_CONG_NEEDS_ECN)
INET_ECN_xmit(sk);
else
tcp_cleanup_congestion_control(sk);
icsk->icsk_ca_ops = ca;
icsk->icsk_ca_setsockopt = 1;
+ memset(icsk->icsk_ca_priv, 0, sizeof(icsk->icsk_ca_priv));
- if (sk->sk_state != TCP_CLOSE) {
- memset(icsk->icsk_ca_priv, 0, sizeof(icsk->icsk_ca_priv));
+ if (sk->sk_state != TCP_CLOSE)
tcp_init_congestion_control(sk);
- }
}
/* Manage refcounts on socket close. */
* eventually). The difference is that pulled data not copied, but
* immediately discarded.
*/
-static void __pskb_trim_head(struct sk_buff *skb, int len)
+static int __pskb_trim_head(struct sk_buff *skb, int len)
{
struct skb_shared_info *shinfo;
int i, k, eat;
__skb_pull(skb, eat);
len -= eat;
if (!len)
- return;
+ return 0;
}
eat = len;
k = 0;
skb_reset_tail_pointer(skb);
skb->data_len -= len;
skb->len = skb->data_len;
+ return len;
}
/* Remove acked data from a packet in the transmit queue. */
int tcp_trim_head(struct sock *sk, struct sk_buff *skb, u32 len)
{
+ u32 delta_truesize;
+
if (skb_unclone(skb, GFP_ATOMIC))
return -ENOMEM;
- __pskb_trim_head(skb, len);
+ delta_truesize = __pskb_trim_head(skb, len);
TCP_SKB_CB(skb)->seq += len;
skb->ip_summed = CHECKSUM_PARTIAL;
- skb->truesize -= len;
- sk->sk_wmem_queued -= len;
- sk_mem_uncharge(sk, len);
- sock_set_flag(sk, SOCK_QUEUE_SHRUNK);
+ if (delta_truesize) {
+ skb->truesize -= delta_truesize;
+ sk->sk_wmem_queued -= delta_truesize;
+ sk_mem_uncharge(sk, delta_truesize);
+ sock_set_flag(sk, SOCK_QUEUE_SHRUNK);
+ }
/* Any change of skb->len requires recalculation of tso factor. */
if (tcp_skb_pcount(skb) > 1)
u16 mac_len = skb->mac_len;
int udp_offset, outer_hlen;
__wsum partial;
+ bool need_ipsec;
if (unlikely(!pskb_may_pull(skb, tnl_hlen)))
goto out;
ufo = !!(skb_shinfo(skb)->gso_type & SKB_GSO_UDP);
+ need_ipsec = skb_dst(skb) && dst_xfrm(skb_dst(skb));
/* Try to offload checksum if possible */
offload_csum = !!(need_csum &&
+ !need_ipsec &&
(skb->dev->features &
(is_ipv6 ? (NETIF_F_HW_CSUM | NETIF_F_IPV6_CSUM) :
(NETIF_F_HW_CSUM | NETIF_F_IP_CSUM))));
static int fixup_permanent_addr(struct inet6_dev *idev,
struct inet6_ifaddr *ifp)
{
- if (!ifp->rt) {
- struct rt6_info *rt;
+ /* rt6i_ref == 0 means the host route was removed from the
+ * FIB, for example, if 'lo' device is taken down. In that
+ * case regenerate the host route.
+ */
+ if (!ifp->rt || !atomic_read(&ifp->rt->rt6i_ref)) {
+ struct rt6_info *rt, *prev;
rt = addrconf_dst_alloc(idev, &ifp->addr, false);
if (unlikely(IS_ERR(rt)))
return PTR_ERR(rt);
+ /* ifp->rt can be accessed outside of rtnl */
+ spin_lock(&ifp->lock);
+ prev = ifp->rt;
ifp->rt = rt;
+ spin_unlock(&ifp->lock);
+
+ ip6_rt_put(prev);
}
if (!(ifp->flags & IFA_F_NOPREFIXROUTE)) {
if (err)
goto igmp_fail;
- ipv6_stub = &ipv6_stub_impl;
-
err = ipv6_netfilter_init();
if (err)
goto netfilter_fail;
if (err)
goto sysctl_fail;
#endif
+
+ /* ensure that ipv6 stubs are visible only after ipv6 is ready */
+ wmb();
+ ipv6_stub = &ipv6_stub_impl;
out:
return err;
* At one point, excluding local errors was a quick test to identify icmp/icmp6
* errors. This is no longer true, but the test remained, so the v6 stack,
* unlike v4, also honors cmsg requests on all wifi and timestamp errors.
- *
- * Timestamp code paths do not initialize the fields expected by cmsg:
- * the PKTINFO fields in skb->cb[]. Fill those in here.
*/
static bool ip6_datagram_support_cmsg(struct sk_buff *skb,
struct sock_exterr_skb *serr)
if (serr->ee.ee_origin == SO_EE_ORIGIN_LOCAL)
return false;
- if (!skb->dev)
+ if (!IP6CB(skb)->iif)
return false;
- if (skb->protocol == htons(ETH_P_IPV6))
- IP6CB(skb)->iif = skb->dev->ifindex;
- else
- PKTINFO_SKB_CB(skb)->ipi_ifindex = skb->dev->ifindex;
-
return true;
}
icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
((&hdr->segments_left) -
skb_network_header(skb)));
- kfree_skb(skb);
return -1;
}
{
switch (opt->type) {
case IPV6_SRCRT_TYPE_0:
+ case IPV6_SRCRT_STRICT:
+ case IPV6_SRCRT_TYPE_2:
ipv6_push_rthdr0(skb, proto, opt, addr_p, saddr);
break;
case IPV6_SRCRT_TYPE_4:
switch (opt->srcrt->type) {
case IPV6_SRCRT_TYPE_0:
+ case IPV6_SRCRT_STRICT:
+ case IPV6_SRCRT_TYPE_2:
fl6->daddr = *((struct rt0_hdr *)opt->srcrt)->addr;
break;
case IPV6_SRCRT_TYPE_4:
max_t(unsigned short, 1, skb_shinfo(skb)->gso_segs));
/*
* RFC4291 2.5.3
+ * The loopback address must not be used as the source address in IPv6
+ * packets that are sent outside of a single node. [..]
* A packet received on an interface with a destination address
* of loopback must be dropped.
*/
- if (!(dev->flags & IFF_LOOPBACK) &&
- ipv6_addr_loopback(&hdr->daddr))
+ if ((ipv6_addr_loopback(&hdr->saddr) ||
+ ipv6_addr_loopback(&hdr->daddr)) &&
+ !(dev->flags & IFF_LOOPBACK))
goto err;
/* RFC4291 Errata ID: 3480
struct ip6_tnl *t = netdev_priv(dev);
struct net *net = t->net;
struct net_device_stats *stats = &t->dev->stats;
- struct ipv6hdr *ipv6h = ipv6_hdr(skb);
+ struct ipv6hdr *ipv6h;
struct ipv6_tel_txoption opt;
struct dst_entry *dst = NULL, *ndst = NULL;
struct net_device *tdev;
/* NBMA tunnel */
if (ipv6_addr_any(&t->parms.raddr)) {
- struct in6_addr *addr6;
- struct neighbour *neigh;
- int addr_type;
+ if (skb->protocol == htons(ETH_P_IPV6)) {
+ struct in6_addr *addr6;
+ struct neighbour *neigh;
+ int addr_type;
- if (!skb_dst(skb))
- goto tx_err_link_failure;
+ if (!skb_dst(skb))
+ goto tx_err_link_failure;
- neigh = dst_neigh_lookup(skb_dst(skb),
- &ipv6_hdr(skb)->daddr);
- if (!neigh)
- goto tx_err_link_failure;
+ neigh = dst_neigh_lookup(skb_dst(skb),
+ &ipv6_hdr(skb)->daddr);
+ if (!neigh)
+ goto tx_err_link_failure;
- addr6 = (struct in6_addr *)&neigh->primary_key;
- addr_type = ipv6_addr_type(addr6);
+ addr6 = (struct in6_addr *)&neigh->primary_key;
+ addr_type = ipv6_addr_type(addr6);
- if (addr_type == IPV6_ADDR_ANY)
- addr6 = &ipv6_hdr(skb)->daddr;
+ if (addr_type == IPV6_ADDR_ANY)
+ addr6 = &ipv6_hdr(skb)->daddr;
- memcpy(&fl6->daddr, addr6, sizeof(fl6->daddr));
- neigh_release(neigh);
+ memcpy(&fl6->daddr, addr6, sizeof(fl6->daddr));
+ neigh_release(neigh);
+ }
} else if (!(t->parms.flags &
(IP6_TNL_F_USE_ORIG_TCLASS | IP6_TNL_F_USE_ORIG_FWMARK))) {
/* enable the cache only only if the routing decision does
* Delete a VIF entry
*/
-static int mif6_delete(struct mr6_table *mrt, int vifi, struct list_head *head)
+static int mif6_delete(struct mr6_table *mrt, int vifi, int notify,
+ struct list_head *head)
{
struct mif_device *v;
struct net_device *dev;
dev->ifindex, &in6_dev->cnf);
}
- if (v->flags & MIFF_REGISTER)
+ if ((v->flags & MIFF_REGISTER) && !notify)
unregister_netdevice_queue(dev, head);
dev_put(dev);
struct mr6_table *mrt;
struct mif_device *v;
int ct;
- LIST_HEAD(list);
if (event != NETDEV_UNREGISTER)
return NOTIFY_DONE;
v = &mrt->vif6_table[0];
for (ct = 0; ct < mrt->maxvif; ct++, v++) {
if (v->dev == dev)
- mif6_delete(mrt, ct, &list);
+ mif6_delete(mrt, ct, 1, NULL);
}
}
- unregister_netdevice_many(&list);
return NOTIFY_DONE;
}
for (i = 0; i < mrt->maxvif; i++) {
if (!all && (mrt->vif6_table[i].flags & VIFF_STATIC))
continue;
- mif6_delete(mrt, i, &list);
+ mif6_delete(mrt, i, 0, &list);
}
unregister_netdevice_many(&list);
if (copy_from_user(&mifi, optval, sizeof(mifi_t)))
return -EFAULT;
rtnl_lock();
- ret = mif6_delete(mrt, mifi, NULL);
+ ret = mif6_delete(mrt, mifi, 0, NULL);
rtnl_unlock();
return ret;
idev = in6_dev_get(dev);
if (!idev)
break;
- if (idev->cnf.ndisc_notify)
+ if (idev->cnf.ndisc_notify ||
+ net->ipv6.devconf_all->ndisc_notify)
ndisc_send_unsol_na(dev);
in6_dev_put(idev);
break;
spin_lock_bh(&sk->sk_receive_queue.lock);
skb = skb_peek(&sk->sk_receive_queue);
if (skb)
- amount = skb_tail_pointer(skb) -
- skb_transport_header(skb);
+ amount = skb->len;
spin_unlock_bh(&sk->sk_receive_queue.lock);
return put_user(amount, (int __user *)arg);
}
int addr_type;
int err = -EINVAL;
+ /* RTF_PCPU is an internal flag; can not be set by userspace */
+ if (cfg->fc_flags & RTF_PCPU)
+ goto out;
+
if (cfg->fc_dst_len > 128 || cfg->fc_src_len > 128)
goto out;
#ifndef CONFIG_IPV6_SUBTREES
struct sr6_tlv *tlv;
unsigned int tlv_len;
+ if (trailing < sizeof(*tlv))
+ return false;
+
tlv = (struct sr6_tlv *)((unsigned char *)srh + tlv_offset);
tlv_len = sizeof(*tlv) + tlv->len;
} u;
struct sk_buff *skb;
} dump;
+ struct mutex dump_lock;
};
+static int parse_sockaddr_pair(struct sockaddr *sa, int ext_len,
+ xfrm_address_t *saddr, xfrm_address_t *daddr,
+ u16 *family);
+
static inline struct pfkey_sock *pfkey_sk(struct sock *sk)
{
return (struct pfkey_sock *)sk;
{
struct netns_pfkey *net_pfkey = net_generic(net, pfkey_net_id);
struct sock *sk;
+ struct pfkey_sock *pfk;
int err;
if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
if (sk == NULL)
goto out;
+ pfk = pfkey_sk(sk);
+ mutex_init(&pfk->dump_lock);
+
sock->ops = &pfkey_ops;
sock_init_data(sock, sk);
struct sadb_msg *hdr;
int rc;
+ mutex_lock(&pfk->dump_lock);
+ if (!pfk->dump.dump) {
+ rc = 0;
+ goto out;
+ }
+
rc = pfk->dump.dump(pfk);
- if (rc == -ENOBUFS)
- return 0;
+ if (rc == -ENOBUFS) {
+ rc = 0;
+ goto out;
+ }
if (pfk->dump.skb) {
- if (!pfkey_can_dump(&pfk->sk))
- return 0;
+ if (!pfkey_can_dump(&pfk->sk)) {
+ rc = 0;
+ goto out;
+ }
hdr = (struct sadb_msg *) pfk->dump.skb->data;
hdr->sadb_msg_seq = 0;
}
pfkey_terminate_dump(pfk);
+
+out:
+ mutex_unlock(&pfk->dump_lock);
return rc;
}
struct xfrm_address_filter *filter = NULL;
struct pfkey_sock *pfk = pfkey_sk(sk);
- if (pfk->dump.dump != NULL)
+ mutex_lock(&pfk->dump_lock);
+ if (pfk->dump.dump != NULL) {
+ mutex_unlock(&pfk->dump_lock);
return -EBUSY;
+ }
proto = pfkey_satype2proto(hdr->sadb_msg_satype);
- if (proto == 0)
+ if (proto == 0) {
+ mutex_unlock(&pfk->dump_lock);
return -EINVAL;
+ }
if (ext_hdrs[SADB_X_EXT_FILTER - 1]) {
struct sadb_x_filter *xfilter = ext_hdrs[SADB_X_EXT_FILTER - 1];
filter = kmalloc(sizeof(*filter), GFP_KERNEL);
- if (filter == NULL)
+ if (filter == NULL) {
+ mutex_unlock(&pfk->dump_lock);
return -ENOMEM;
+ }
memcpy(&filter->saddr, &xfilter->sadb_x_filter_saddr,
sizeof(xfrm_address_t));
pfk->dump.dump = pfkey_dump_sa;
pfk->dump.done = pfkey_dump_sa_done;
xfrm_state_walk_init(&pfk->dump.u.state, proto, filter);
+ mutex_unlock(&pfk->dump_lock);
return pfkey_do_dump(pfk);
}
/* addresses present only in tunnel mode */
if (t->mode == XFRM_MODE_TUNNEL) {
- u8 *sa = (u8 *) (rq + 1);
- int family, socklen;
+ int err;
- family = pfkey_sockaddr_extract((struct sockaddr *)sa,
- &t->saddr);
- if (!family)
- return -EINVAL;
-
- socklen = pfkey_sockaddr_len(family);
- if (pfkey_sockaddr_extract((struct sockaddr *)(sa + socklen),
- &t->id.daddr) != family)
- return -EINVAL;
- t->encap_family = family;
+ err = parse_sockaddr_pair(
+ (struct sockaddr *)(rq + 1),
+ rq->sadb_x_ipsecrequest_len - sizeof(*rq),
+ &t->saddr, &t->id.daddr, &t->encap_family);
+ if (err)
+ return err;
} else
t->encap_family = xp->family;
if (pol->sadb_x_policy_len * 8 < sizeof(struct sadb_x_policy))
return -EINVAL;
- while (len >= sizeof(struct sadb_x_ipsecrequest)) {
+ while (len >= sizeof(*rq)) {
+ if (len < rq->sadb_x_ipsecrequest_len ||
+ rq->sadb_x_ipsecrequest_len < sizeof(*rq))
+ return -EINVAL;
+
if ((err = parse_ipsecrequest(xp, rq)) < 0)
return err;
len -= rq->sadb_x_ipsecrequest_len;
return err;
}
-#ifdef CONFIG_NET_KEY_MIGRATE
static int pfkey_sockaddr_pair_size(sa_family_t family)
{
return PFKEY_ALIGN8(pfkey_sockaddr_len(family) * 2);
{
int af, socklen;
- if (ext_len < pfkey_sockaddr_pair_size(sa->sa_family))
+ if (ext_len < 2 || ext_len < pfkey_sockaddr_pair_size(sa->sa_family))
return -EINVAL;
af = pfkey_sockaddr_extract(sa, saddr);
return 0;
}
+#ifdef CONFIG_NET_KEY_MIGRATE
static int ipsecrequests_to_migrate(struct sadb_x_ipsecrequest *rq1, int len,
struct xfrm_migrate *m)
{
struct sadb_x_ipsecrequest *rq2;
int mode;
- if (len <= sizeof(struct sadb_x_ipsecrequest) ||
- len < rq1->sadb_x_ipsecrequest_len)
+ if (len < sizeof(*rq1) ||
+ len < rq1->sadb_x_ipsecrequest_len ||
+ rq1->sadb_x_ipsecrequest_len < sizeof(*rq1))
return -EINVAL;
/* old endoints */
err = parse_sockaddr_pair((struct sockaddr *)(rq1 + 1),
- rq1->sadb_x_ipsecrequest_len,
+ rq1->sadb_x_ipsecrequest_len - sizeof(*rq1),
&m->old_saddr, &m->old_daddr,
&m->old_family);
if (err)
rq2 = (struct sadb_x_ipsecrequest *)((u8 *)rq1 + rq1->sadb_x_ipsecrequest_len);
len -= rq1->sadb_x_ipsecrequest_len;
- if (len <= sizeof(struct sadb_x_ipsecrequest) ||
- len < rq2->sadb_x_ipsecrequest_len)
+ if (len <= sizeof(*rq2) ||
+ len < rq2->sadb_x_ipsecrequest_len ||
+ rq2->sadb_x_ipsecrequest_len < sizeof(*rq2))
return -EINVAL;
/* new endpoints */
err = parse_sockaddr_pair((struct sockaddr *)(rq2 + 1),
- rq2->sadb_x_ipsecrequest_len,
+ rq2->sadb_x_ipsecrequest_len - sizeof(*rq2),
&m->new_saddr, &m->new_daddr,
&m->new_family);
if (err)
{
struct pfkey_sock *pfk = pfkey_sk(sk);
- if (pfk->dump.dump != NULL)
+ mutex_lock(&pfk->dump_lock);
+ if (pfk->dump.dump != NULL) {
+ mutex_unlock(&pfk->dump_lock);
return -EBUSY;
+ }
pfk->dump.msg_version = hdr->sadb_msg_version;
pfk->dump.msg_portid = hdr->sadb_msg_pid;
pfk->dump.dump = pfkey_dump_sp;
pfk->dump.done = pfkey_dump_sp_done;
xfrm_policy_walk_init(&pfk->dump.u.policy, XFRM_POLICY_TYPE_MAIN);
+ mutex_unlock(&pfk->dump_lock);
return pfkey_do_dump(pfk);
}
return len;
}
+static void ieee80211_handle_mu_mimo_mon(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb,
+ int rtap_vendor_space)
+{
+ struct {
+ struct ieee80211_hdr_3addr hdr;
+ u8 category;
+ u8 action_code;
+ } __packed action;
+
+ if (!sdata)
+ return;
+
+ BUILD_BUG_ON(sizeof(action) != IEEE80211_MIN_ACTION_SIZE + 1);
+
+ if (skb->len < rtap_vendor_space + sizeof(action) +
+ VHT_MUMIMO_GROUPS_DATA_LEN)
+ return;
+
+ if (!is_valid_ether_addr(sdata->u.mntr.mu_follow_addr))
+ return;
+
+ skb_copy_bits(skb, rtap_vendor_space, &action, sizeof(action));
+
+ if (!ieee80211_is_action(action.hdr.frame_control))
+ return;
+
+ if (action.category != WLAN_CATEGORY_VHT)
+ return;
+
+ if (action.action_code != WLAN_VHT_ACTION_GROUPID_MGMT)
+ return;
+
+ if (!ether_addr_equal(action.hdr.addr1, sdata->u.mntr.mu_follow_addr))
+ return;
+
+ skb = skb_copy(skb, GFP_ATOMIC);
+ if (!skb)
+ return;
+
+ skb->pkt_type = IEEE80211_SDATA_QUEUE_TYPE_FRAME;
+ skb_queue_tail(&sdata->skb_queue, skb);
+ ieee80211_queue_work(&sdata->local->hw, &sdata->work);
+}
+
/*
* ieee80211_add_rx_radiotap_header - add radiotap header
*
struct net_device *prev_dev = NULL;
int present_fcs_len = 0;
unsigned int rtap_vendor_space = 0;
- struct ieee80211_mgmt *mgmt;
struct ieee80211_sub_if_data *monitor_sdata =
rcu_dereference(local->monitor_sdata);
return remove_monitor_info(local, origskb, rtap_vendor_space);
}
+ ieee80211_handle_mu_mimo_mon(monitor_sdata, origskb, rtap_vendor_space);
+
/* room for the radiotap header based on driver features */
rt_hdrlen = ieee80211_rx_radiotap_hdrlen(local, status, origskb);
needed_headroom = rt_hdrlen - rtap_vendor_space;
ieee80211_rx_stats(sdata->dev, skb->len);
}
- mgmt = (void *)skb->data;
- if (monitor_sdata &&
- skb->len >= IEEE80211_MIN_ACTION_SIZE + 1 + VHT_MUMIMO_GROUPS_DATA_LEN &&
- ieee80211_is_action(mgmt->frame_control) &&
- mgmt->u.action.category == WLAN_CATEGORY_VHT &&
- mgmt->u.action.u.vht_group_notif.action_code == WLAN_VHT_ACTION_GROUPID_MGMT &&
- is_valid_ether_addr(monitor_sdata->u.mntr.mu_follow_addr) &&
- ether_addr_equal(mgmt->da, monitor_sdata->u.mntr.mu_follow_addr)) {
- struct sk_buff *mu_skb = skb_copy(skb, GFP_ATOMIC);
-
- if (mu_skb) {
- mu_skb->pkt_type = IEEE80211_SDATA_QUEUE_TYPE_FRAME;
- skb_queue_tail(&monitor_sdata->skb_queue, mu_skb);
- ieee80211_queue_work(&local->hw, &monitor_sdata->work);
- }
- }
-
if (prev_dev) {
skb->dev = prev_dev;
netif_receive_skb(skb);
!ether_addr_equal(bssid, hdr->addr1))
return false;
}
+
+ /*
+ * 802.11-2016 Table 9-26 says that for data frames, A1 must be
+ * the BSSID - we've checked that already but may have accepted
+ * the wildcard (ff:ff:ff:ff:ff:ff).
+ *
+ * It also says:
+ * The BSSID of the Data frame is determined as follows:
+ * a) If the STA is contained within an AP or is associated
+ * with an AP, the BSSID is the address currently in use
+ * by the STA contained in the AP.
+ *
+ * So we should not accept data frames with an address that's
+ * multicast.
+ *
+ * Accepting it also opens a security problem because stations
+ * could encrypt it with the GTK and inject traffic that way.
+ */
+ if (ieee80211_is_data(hdr->frame_control) && multicast)
+ return false;
+
return true;
case NL80211_IFTYPE_WDS:
if (bssid || !ieee80211_is_data(hdr->frame_control))
case PACKET_HDRLEN:
if (len > sizeof(int))
len = sizeof(int);
+ if (len < sizeof(int))
+ return -EINVAL;
if (copy_from_user(&val, optval, len))
return -EFAULT;
switch (val) {
}
if (plen != len) {
- skb_pad(skb, plen - len);
+ rc = skb_pad(skb, plen - len);
+ if (rc)
+ goto out_node;
skb_put(skb, plen - len);
}
return err;
}
-static int nla_memdup_cookie(struct tc_action *a, struct nlattr **tb)
+static struct tc_cookie *nla_memdup_cookie(struct nlattr **tb)
{
- a->act_cookie = kzalloc(sizeof(*a->act_cookie), GFP_KERNEL);
- if (!a->act_cookie)
- return -ENOMEM;
+ struct tc_cookie *c = kzalloc(sizeof(*c), GFP_KERNEL);
+ if (!c)
+ return NULL;
- a->act_cookie->data = nla_memdup(tb[TCA_ACT_COOKIE], GFP_KERNEL);
- if (!a->act_cookie->data) {
- kfree(a->act_cookie);
- return -ENOMEM;
+ c->data = nla_memdup(tb[TCA_ACT_COOKIE], GFP_KERNEL);
+ if (!c->data) {
+ kfree(c);
+ return NULL;
}
- a->act_cookie->len = nla_len(tb[TCA_ACT_COOKIE]);
+ c->len = nla_len(tb[TCA_ACT_COOKIE]);
- return 0;
+ return c;
}
struct tc_action *tcf_action_init_1(struct net *net, struct nlattr *nla,
{
struct tc_action *a;
struct tc_action_ops *a_o;
+ struct tc_cookie *cookie = NULL;
char act_name[IFNAMSIZ];
struct nlattr *tb[TCA_ACT_MAX + 1];
struct nlattr *kind;
goto err_out;
if (nla_strlcpy(act_name, kind, IFNAMSIZ) >= IFNAMSIZ)
goto err_out;
+ if (tb[TCA_ACT_COOKIE]) {
+ int cklen = nla_len(tb[TCA_ACT_COOKIE]);
+
+ if (cklen > TC_COOKIE_MAX_SIZE)
+ goto err_out;
+
+ cookie = nla_memdup_cookie(tb);
+ if (!cookie) {
+ err = -ENOMEM;
+ goto err_out;
+ }
+ }
} else {
err = -EINVAL;
if (strlcpy(act_name, name, IFNAMSIZ) >= IFNAMSIZ)
if (err < 0)
goto err_mod;
- if (tb[TCA_ACT_COOKIE]) {
- int cklen = nla_len(tb[TCA_ACT_COOKIE]);
-
- if (cklen > TC_COOKIE_MAX_SIZE) {
- err = -EINVAL;
- tcf_hash_release(a, bind);
- goto err_mod;
- }
-
- if (nla_memdup_cookie(a, tb) < 0) {
- err = -ENOMEM;
- tcf_hash_release(a, bind);
- goto err_mod;
+ if (name == NULL && tb[TCA_ACT_COOKIE]) {
+ if (a->act_cookie) {
+ kfree(a->act_cookie->data);
+ kfree(a->act_cookie);
}
+ a->act_cookie = cookie;
}
/* module count goes up only when brand new policy is created
err_mod:
module_put(a_o->owner);
err_out:
+ if (cookie) {
+ kfree(cookie->data);
+ kfree(cookie);
+ }
return ERR_PTR(err);
}
if (!tsk_peer_msg(tsk, hdr))
goto exit;
+ if (unlikely(msg_errcode(hdr))) {
+ tipc_set_sk_state(sk, TIPC_DISCONNECTING);
+ tipc_node_remove_conn(sock_net(sk), tsk_peer_node(tsk),
+ tsk_peer_port(tsk));
+ sk->sk_state_change(sk);
+ goto exit;
+ }
+
tsk->probe_unacked = false;
if (mtyp == CONN_PROBE) {
}
} while (sent < dlen && !rc);
- return rc ? rc : sent;
+ return sent ? sent : rc;
}
/**
struct sock *sk = sock->sk;
DEFINE_WAIT(wait);
long timeo = *timeop;
- int err;
+ int err = sock_error(sk);
+
+ if (err)
+ return err;
for (;;) {
prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
err = sock_intr_errno(timeo);
if (signal_pending(current))
break;
+
+ err = sock_error(sk);
+ if (err)
+ break;
}
finish_wait(sk_sleep(sk), &wait);
*timeop = timeo;
if (unlikely(flags & MSG_PEEK))
goto exit;
- tsk->rcv_unacked += tsk_inc(tsk, hlen + sz);
+ tsk->rcv_unacked += tsk_inc(tsk, hlen + msg_data_sz(msg));
if (unlikely(tsk->rcv_unacked >= (tsk->rcv_win / 4)))
tipc_sk_send_ack(tsk);
tsk_advance_rx_queue(sk);
struct sock *sk = &tsk->sk;
struct net *net = sock_net(sk);
struct tipc_msg *hdr = buf_msg(skb);
+ u32 pport = msg_origport(hdr);
+ u32 pnode = msg_orignode(hdr);
if (unlikely(msg_mcast(hdr)))
return false;
switch (sk->sk_state) {
case TIPC_CONNECTING:
/* Accept only ACK or NACK message */
- if (unlikely(!msg_connected(hdr)))
- return false;
+ if (unlikely(!msg_connected(hdr))) {
+ if (pport != tsk_peer_port(tsk) ||
+ pnode != tsk_peer_node(tsk))
+ return false;
+
+ tipc_set_sk_state(sk, TIPC_DISCONNECTING);
+ sk->sk_err = ECONNREFUSED;
+ sk->sk_state_change(sk);
+ return true;
+ }
if (unlikely(msg_errcode(hdr))) {
tipc_set_sk_state(sk, TIPC_DISCONNECTING);
sk->sk_err = ECONNREFUSED;
+ sk->sk_state_change(sk);
return true;
}
if (unlikely(!msg_isdata(hdr))) {
tipc_set_sk_state(sk, TIPC_DISCONNECTING);
sk->sk_err = EINVAL;
+ sk->sk_state_change(sk);
return true;
}
return true;
/* If empty 'ACK-' message, wake up sleeping connect() */
- if (waitqueue_active(sk_sleep(sk)))
- wake_up_interruptible(sk_sleep(sk));
+ sk->sk_data_ready(sk);
/* 'ACK-' message is neither accepted nor rejected: */
msg_set_dest_droppable(hdr, 1);
if (xo)
xfrm_gro = xo->flags & XFRM_GRO;
- err = x->inner_mode->afinfo->transport_finish(skb, async);
+ err = x->inner_mode->afinfo->transport_finish(skb, xfrm_gro || async);
if (xfrm_gro) {
skb_dst_drop(skb);
gro_cells_receive(&gro_cells, skb);
err = -ESRCH;
out:
spin_unlock_bh(&net->xfrm.xfrm_policy_lock);
+
+ if (cnt)
+ xfrm_garbage_collect(net);
+
return err;
}
EXPORT_SYMBOL(xfrm_policy_flush);
* immediately unlinked.
*/
struct key_type key_type_dead = {
- .name = "dead",
+ .name = ".dead",
};
/*
* Create and join an anonymous session keyring or join a named session
* keyring, creating it if necessary. A named session keyring must have Search
* permission for it to be joined. Session keyrings without this permit will
- * be skipped over.
+ * be skipped over. It is not permitted for userspace to create or join
+ * keyrings whose name begin with a dot.
*
* If successful, the ID of the joined session keyring will be returned.
*/
ret = PTR_ERR(name);
goto error;
}
+
+ ret = -EPERM;
+ if (name[0] == '.')
+ goto error_name;
}
/* join the session */
ret = join_session_keyring(name);
+error_name:
kfree(name);
-
error:
return ret;
}
* Read or set the default keyring in which request_key() will cache keys and
* return the old setting.
*
- * If a process keyring is specified then this will be created if it doesn't
- * yet exist. The old setting will be returned if successful.
+ * If a thread or process keyring is specified then it will be created if it
+ * doesn't yet exist. The old setting will be returned if successful.
*/
long keyctl_set_reqkey_keyring(int reqkey_defl)
{
case KEY_REQKEY_DEFL_PROCESS_KEYRING:
ret = install_process_keyring_to_cred(new);
- if (ret < 0) {
- if (ret != -EEXIST)
- goto error;
- ret = 0;
- }
+ if (ret < 0)
+ goto error;
goto set;
case KEY_REQKEY_DEFL_DEFAULT:
}
/*
- * Install a fresh thread keyring directly to new credentials. This keyring is
- * allowed to overrun the quota.
+ * Install a thread keyring to the given credentials struct if it didn't have
+ * one already. This is allowed to overrun the quota.
+ *
+ * Return: 0 if a thread keyring is now present; -errno on failure.
*/
int install_thread_keyring_to_cred(struct cred *new)
{
struct key *keyring;
+ if (new->thread_keyring)
+ return 0;
+
keyring = keyring_alloc("_tid", new->uid, new->gid, new,
KEY_POS_ALL | KEY_USR_VIEW,
KEY_ALLOC_QUOTA_OVERRUN,
}
/*
- * Install a fresh thread keyring, discarding the old one.
+ * Install a thread keyring to the current task if it didn't have one already.
+ *
+ * Return: 0 if a thread keyring is now present; -errno on failure.
*/
static int install_thread_keyring(void)
{
if (!new)
return -ENOMEM;
- BUG_ON(new->thread_keyring);
-
ret = install_thread_keyring_to_cred(new);
if (ret < 0) {
abort_creds(new);
}
/*
- * Install a process keyring directly to a credentials struct.
+ * Install a process keyring to the given credentials struct if it didn't have
+ * one already. This is allowed to overrun the quota.
*
- * Returns -EEXIST if there was already a process keyring, 0 if one installed,
- * and other value on any other error
+ * Return: 0 if a process keyring is now present; -errno on failure.
*/
int install_process_keyring_to_cred(struct cred *new)
{
struct key *keyring;
if (new->process_keyring)
- return -EEXIST;
+ return 0;
keyring = keyring_alloc("_pid", new->uid, new->gid, new,
KEY_POS_ALL | KEY_USR_VIEW,
}
/*
- * Make sure a process keyring is installed for the current process. The
- * existing process keyring is not replaced.
+ * Install a process keyring to the current task if it didn't have one already.
*
- * Returns 0 if there is a process keyring by the end of this function, some
- * error otherwise.
+ * Return: 0 if a process keyring is now present; -errno on failure.
*/
static int install_process_keyring(void)
{
ret = install_process_keyring_to_cred(new);
if (ret < 0) {
abort_creds(new);
- return ret != -EEXIST ? ret : 0;
+ return ret;
}
return commit_creds(new);
}
/*
- * Install a session keyring directly to a credentials struct.
+ * Install the given keyring as the session keyring of the given credentials
+ * struct, replacing the existing one if any. If the given keyring is NULL,
+ * then install a new anonymous session keyring.
+ *
+ * Return: 0 on success; -errno on failure.
*/
int install_session_keyring_to_cred(struct cred *cred, struct key *keyring)
{
}
/*
- * Install a session keyring, discarding the old one. If a keyring is not
- * supplied, an empty one is invented.
+ * Install the given keyring as the session keyring of the current task,
+ * replacing the existing one if any. If the given keyring is NULL, then
+ * install a new anonymous session keyring.
+ *
+ * Return: 0 on success; -errno on failure.
*/
static int install_session_keyring(struct key *keyring)
{
/* wait until all locks are released */
void snd_use_lock_sync_helper(snd_use_lock_t *lockp, const char *file, int line)
{
- int max_count = 5 * HZ;
+ int warn_count = 5 * HZ;
if (atomic_read(lockp) < 0) {
pr_warn("ALSA: seq_lock: lock trouble [counter = %d] in %s:%d\n", atomic_read(lockp), file, line);
return;
}
while (atomic_read(lockp) > 0) {
- if (max_count == 0) {
- pr_warn("ALSA: seq_lock: timeout [%d left] in %s:%d\n", atomic_read(lockp), file, line);
- break;
- }
+ if (warn_count-- == 0)
+ pr_warn("ALSA: seq_lock: waiting [%d left] in %s:%d\n", atomic_read(lockp), file, line);
schedule_timeout_uninterruptible(1);
- max_count--;
}
}
struct snd_rawmidi_substream *substream;
snd_fw_async_midi_port_fill fill;
- unsigned int consume_bytes;
+ int consume_bytes;
};
int snd_fw_async_midi_port_init(struct snd_fw_async_midi_port *port,
if (err < 0)
goto error;
- err = detect_quirks(oxfw);
+ err = snd_oxfw_stream_discover(oxfw);
if (err < 0)
goto error;
- err = snd_oxfw_stream_discover(oxfw);
+ err = detect_quirks(oxfw);
if (err < 0)
goto error;
.codec_dai_name = "snd-soc-dummy-dai",
.codec_name = "snd-soc-dummy",
.platform_name = "sst-mfld-platform",
- .ignore_suspend = 1,
+ .nonatomic = true,
.dynamic = 1,
.dpcm_playback = 1,
.dpcm_capture = 1,
.codec_dai_name = "snd-soc-dummy-dai",
.codec_name = "snd-soc-dummy",
.platform_name = "sst-mfld-platform",
- .ignore_suspend = 1,
.nonatomic = true,
.dynamic = 1,
.dpcm_playback = 1,
| SND_SOC_DAIFMT_CBS_CFS,
.be_hw_params_fixup = byt_rt5640_codec_fixup,
.ignore_suspend = 1,
+ .nonatomic = true,
.dpcm_playback = 1,
.dpcm_capture = 1,
.init = byt_rt5640_init,
.codec_dai_name = "snd-soc-dummy-dai",
.codec_name = "snd-soc-dummy",
.platform_name = "sst-mfld-platform",
- .ignore_suspend = 1,
.nonatomic = true,
.dynamic = 1,
.dpcm_playback = 1,
.codec_dai_name = "snd-soc-dummy-dai",
.codec_name = "snd-soc-dummy",
.platform_name = "sst-mfld-platform",
- .ignore_suspend = 1,
.nonatomic = true,
.dynamic = 1,
.dpcm_playback = 1,
}
}
+ se->texts = (const char * const *)se->dobj.control.dtexts;
return 0;
err:
int ver; /* IP version, used by register access macros */
struct regmap_field *clk_sel;
struct regmap_field *valid_sel;
+ spinlock_t irq_lock; /* use to prevent race condition with IRQ */
/* capabilities */
const struct snd_pcm_hardware *hw;
unsigned int status;
unsigned int tmp;
- if (player->state == UNIPERIF_STATE_STOPPED) {
- /* Unexpected IRQ: do nothing */
- return IRQ_NONE;
- }
+ spin_lock(&player->irq_lock);
+ if (!player->substream)
+ goto irq_spin_unlock;
+
+ snd_pcm_stream_lock(player->substream);
+ if (player->state == UNIPERIF_STATE_STOPPED)
+ goto stream_unlock;
/* Get interrupt status & clear them immediately */
status = GET_UNIPERIF_ITS(player);
SET_UNIPERIF_ITM_BCLR_FIFO_ERROR(player);
/* Stop the player */
- snd_pcm_stream_lock(player->substream);
snd_pcm_stop(player->substream, SNDRV_PCM_STATE_XRUN);
- snd_pcm_stream_unlock(player->substream);
}
ret = IRQ_HANDLED;
SET_UNIPERIF_ITM_BCLR_DMA_ERROR(player);
/* Stop the player */
- snd_pcm_stream_lock(player->substream);
snd_pcm_stop(player->substream, SNDRV_PCM_STATE_XRUN);
- snd_pcm_stream_unlock(player->substream);
ret = IRQ_HANDLED;
}
if (!player->underflow_enabled) {
dev_err(player->dev,
"unexpected Underflow recovering\n");
- return -EPERM;
+ ret = -EPERM;
+ goto stream_unlock;
}
/* Read the underflow recovery duration */
tmp = GET_UNIPERIF_STATUS_1_UNDERFLOW_DURATION(player);
dev_err(player->dev, "Underflow recovery failed\n");
/* Stop the player */
- snd_pcm_stream_lock(player->substream);
snd_pcm_stop(player->substream, SNDRV_PCM_STATE_XRUN);
- snd_pcm_stream_unlock(player->substream);
ret = IRQ_HANDLED;
}
+stream_unlock:
+ snd_pcm_stream_unlock(player->substream);
+irq_spin_unlock:
+ spin_unlock(&player->irq_lock);
+
return ret;
}
struct sti_uniperiph_data *priv = snd_soc_dai_get_drvdata(dai);
struct uniperif *player = priv->dai_data.uni;
struct snd_aes_iec958 *iec958 = &player->stream_settings.iec958;
+ unsigned long flags;
mutex_lock(&player->ctrl_lock);
iec958->status[0] = ucontrol->value.iec958.status[0];
iec958->status[3] = ucontrol->value.iec958.status[3];
mutex_unlock(&player->ctrl_lock);
+ spin_lock_irqsave(&player->irq_lock, flags);
if (player->substream && player->substream->runtime)
uni_player_set_channel_status(player,
player->substream->runtime);
else
uni_player_set_channel_status(player, NULL);
+ spin_unlock_irqrestore(&player->irq_lock, flags);
return 0;
}
{
struct sti_uniperiph_data *priv = snd_soc_dai_get_drvdata(dai);
struct uniperif *player = priv->dai_data.uni;
+ unsigned long flags;
int ret;
+ spin_lock_irqsave(&player->irq_lock, flags);
player->substream = substream;
+ spin_unlock_irqrestore(&player->irq_lock, flags);
player->clk_adj = 0;
{
struct sti_uniperiph_data *priv = snd_soc_dai_get_drvdata(dai);
struct uniperif *player = priv->dai_data.uni;
+ unsigned long flags;
+ spin_lock_irqsave(&player->irq_lock, flags);
if (player->state != UNIPERIF_STATE_STOPPED)
/* Stop the player */
uni_player_stop(player);
player->substream = NULL;
+ spin_unlock_irqrestore(&player->irq_lock, flags);
}
static int uni_player_parse_dt_audio_glue(struct platform_device *pdev,
}
mutex_init(&player->ctrl_lock);
+ spin_lock_init(&player->irq_lock);
/* Ensure that disabled by default */
SET_UNIPERIF_CONFIG_BACK_STALL_REQ_DISABLE(player);
struct uniperif *reader = dev_id;
unsigned int status;
+ spin_lock(&reader->irq_lock);
+ if (!reader->substream)
+ goto irq_spin_unlock;
+
+ snd_pcm_stream_lock(reader->substream);
if (reader->state == UNIPERIF_STATE_STOPPED) {
/* Unexpected IRQ: do nothing */
dev_warn(reader->dev, "unexpected IRQ\n");
- return IRQ_HANDLED;
+ goto stream_unlock;
}
/* Get interrupt status & clear them immediately */
if (unlikely(status & UNIPERIF_ITS_FIFO_ERROR_MASK(reader))) {
dev_err(reader->dev, "FIFO error detected\n");
- snd_pcm_stream_lock(reader->substream);
snd_pcm_stop(reader->substream, SNDRV_PCM_STATE_XRUN);
- snd_pcm_stream_unlock(reader->substream);
- return IRQ_HANDLED;
+ ret = IRQ_HANDLED;
}
+stream_unlock:
+ snd_pcm_stream_unlock(reader->substream);
+irq_spin_unlock:
+ spin_unlock(&reader->irq_lock);
+
return ret;
}
{
struct sti_uniperiph_data *priv = snd_soc_dai_get_drvdata(dai);
struct uniperif *reader = priv->dai_data.uni;
+ unsigned long flags;
int ret;
+ spin_lock_irqsave(&reader->irq_lock, flags);
reader->substream = substream;
+ spin_unlock_irqrestore(&reader->irq_lock, flags);
if (!UNIPERIF_TYPE_IS_TDM(reader))
return 0;
{
struct sti_uniperiph_data *priv = snd_soc_dai_get_drvdata(dai);
struct uniperif *reader = priv->dai_data.uni;
+ unsigned long flags;
+ spin_lock_irqsave(&reader->irq_lock, flags);
if (reader->state != UNIPERIF_STATE_STOPPED) {
/* Stop the reader */
uni_reader_stop(reader);
}
reader->substream = NULL;
+ spin_unlock_irqrestore(&reader->irq_lock, flags);
}
static const struct snd_soc_dai_ops uni_reader_dai_ops = {
return -EBUSY;
}
+ spin_lock_init(&reader->irq_lock);
+
return 0;
}
EXPORT_SYMBOL_GPL(uni_reader_init);
{
unsigned int nr_cpus = bpf_num_possible_cpus();
int key, next_key, fd, i;
- long values[nr_cpus];
+ long long values[nr_cpus];
fd = bpf_create_map(BPF_MAP_TYPE_PERCPU_ARRAY, sizeof(key),
sizeof(values[0]), 2, 0);
* allocator more than anything else
*/
unsigned int nr_keys = 2000;
- long values[nr_cpus];
+ long long values[nr_cpus];
int key, fd, i;
fd = bpf_create_map(BPF_MAP_TYPE_PERCPU_ARRAY, sizeof(key),
--- /dev/null
+#!/bin/sh
+# description: ftrace - function pid filters
+
+# Make sure that function pid matching filter works.
+# Also test it on an instance directory
+
+if ! grep -q function available_tracers; then
+ echo "no function tracer configured"
+ exit_unsupported
+fi
+
+if [ ! -f set_ftrace_pid ]; then
+ echo "set_ftrace_pid not found? Is function tracer not set?"
+ exit_unsupported
+fi
+
+if [ ! -f set_ftrace_filter ]; then
+ echo "set_ftrace_filter not found? Is function tracer not set?"
+ exit_unsupported
+fi
+
+do_function_fork=1
+
+if [ ! -f options/function-fork ]; then
+ do_function_fork=0
+ echo "no option for function-fork found. Option will not be tested."
+fi
+
+read PID _ < /proc/self/stat
+
+if [ $do_function_fork -eq 1 ]; then
+ # default value of function-fork option
+ orig_value=`grep function-fork trace_options`
+fi
+
+do_reset() {
+ reset_tracer
+ clear_trace
+ enable_tracing
+ echo > set_ftrace_filter
+ echo > set_ftrace_pid
+
+ if [ $do_function_fork -eq 0 ]; then
+ return
+ fi
+
+ echo $orig_value > trace_options
+}
+
+fail() { # msg
+ do_reset
+ echo $1
+ exit $FAIL
+}
+
+yield() {
+ ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
+}
+
+do_test() {
+ disable_tracing
+
+ echo do_execve* > set_ftrace_filter
+ echo *do_fork >> set_ftrace_filter
+
+ echo $PID > set_ftrace_pid
+ echo function > current_tracer
+
+ if [ $do_function_fork -eq 1 ]; then
+ # don't allow children to be traced
+ echo nofunction-fork > trace_options
+ fi
+
+ enable_tracing
+ yield
+
+ count_pid=`cat trace | grep -v ^# | grep $PID | wc -l`
+ count_other=`cat trace | grep -v ^# | grep -v $PID | wc -l`
+
+ # count_other should be 0
+ if [ $count_pid -eq 0 -o $count_other -ne 0 ]; then
+ fail "PID filtering not working?"
+ fi
+
+ disable_tracing
+ clear_trace
+
+ if [ $do_function_fork -eq 0 ]; then
+ return
+ fi
+
+ # allow children to be traced
+ echo function-fork > trace_options
+
+ enable_tracing
+ yield
+
+ count_pid=`cat trace | grep -v ^# | grep $PID | wc -l`
+ count_other=`cat trace | grep -v ^# | grep -v $PID | wc -l`
+
+ # count_other should NOT be 0
+ if [ $count_pid -eq 0 -o $count_other -eq 0 ]; then
+ fail "PID filtering not following fork?"
+ fi
+}
+
+do_test
+
+mkdir instances/foo
+cd instances/foo
+do_test
+cd ../../
+rmdir instances/foo
+
+do_reset
+
+exit 0
{
int fd, val;
- fd = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_IP));
+ fd = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_IP));
if (fd < 0) {
perror("socket packet");
exit(1);
return fd;
}
+static void sock_fanout_set_cbpf(int fd)
+{
+ struct sock_filter bpf_filter[] = {
+ BPF_STMT(BPF_LD+BPF_B+BPF_ABS, 80), /* ldb [80] */
+ BPF_STMT(BPF_RET+BPF_A, 0), /* ret A */
+ };
+ struct sock_fprog bpf_prog;
+
+ bpf_prog.filter = bpf_filter;
+ bpf_prog.len = sizeof(bpf_filter) / sizeof(struct sock_filter);
+
+ if (setsockopt(fd, SOL_PACKET, PACKET_FANOUT_DATA, &bpf_prog,
+ sizeof(bpf_prog))) {
+ perror("fanout data cbpf");
+ exit(1);
+ }
+}
+
static void sock_fanout_set_ebpf(int fd)
{
const int len_off = __builtin_offsetof(struct __sk_buff, len);
exit(1);
}
if (type == PACKET_FANOUT_CBPF)
- sock_setfilter(fds[0], SOL_PACKET, PACKET_FANOUT_DATA);
+ sock_fanout_set_cbpf(fds[0]);
else if (type == PACKET_FANOUT_EBPF)
sock_fanout_set_ebpf(fds[0]);
# define __maybe_unused __attribute__ ((__unused__))
#endif
-static __maybe_unused void sock_setfilter(int fd, int lvl, int optnum)
+static __maybe_unused void pair_udp_setfilter(int fd)
{
/* the filter below checks for all of the following conditions that
* are based on the contents of create_payload()
};
struct sock_fprog bpf_prog;
- if (lvl == SOL_PACKET && optnum == PACKET_FANOUT_DATA)
- bpf_filter[5].code = 0x16; /* RET A */
-
bpf_prog.filter = bpf_filter;
bpf_prog.len = sizeof(bpf_filter) / sizeof(struct sock_filter);
- if (setsockopt(fd, lvl, optnum, &bpf_prog,
+
+ if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &bpf_prog,
sizeof(bpf_prog))) {
perror("setsockopt SO_ATTACH_FILTER");
exit(1);
}
}
-static __maybe_unused void pair_udp_setfilter(int fd)
-{
- sock_setfilter(fd, SOL_SOCKET, SO_ATTACH_FILTER);
-}
-
static __maybe_unused void pair_udp_open(int fds[], uint16_t port)
{
struct sockaddr_in saddr, daddr;
projects / karo-tx-linux.git / commitdiff