int platform_driver_probe(struct platform_driver *drv,
int (*probe)(struct platform_device *))
+Kernel modules can be composed of several platform drivers. The platform core
+provides helpers to register and unregister an array of drivers:
+
+ int __platform_register_drivers(struct platform_driver * const *drivers,
+ unsigned int count, struct module *owner);
+ void platform_unregister_drivers(struct platform_driver * const *drivers,
+ unsigned int count);
+
+If one of the drivers fails to register, all drivers registered up to that
+point will be unregistered in reverse order. Note that there is a convenience
+macro that passes THIS_MODULE as owner parameter:
+
+ #define platform_register_driver(drivers, count)
+
Device Enumeration
~~~~~~~~~~~~~~~~~~
Boolean values can be placed in debugfs with:
struct dentry *debugfs_create_bool(const char *name, umode_t mode,
- struct dentry *parent, u32 *value);
+ struct dentry *parent, bool *value);
A read on the resulting file will yield either Y (for non-zero values) or
N, followed by a newline. If written to, it will accept either upper- or
* Allow root to disable self-hosted debug from userspace.
* This is useful if you want to connect an external JTAG debugger.
*/
-static u32 debug_enabled = 1;
+static bool debug_enabled = true;
static int create_debug_debugfs_entry(void)
{
static int __init early_debug_disable(char *buf)
{
- debug_enabled = 0;
+ debug_enabled = false;
return 0;
}
if (!debugfs_create_x32("gpe", 0444, dev_dir, (u32 *)&first_ec->gpe))
goto error;
if (!debugfs_create_bool("use_global_lock", 0444, dev_dir,
- (u32 *)&first_ec->global_lock))
+ &first_ec->global_lock))
goto error;
if (write_support)
unsigned long gpe;
unsigned long command_addr;
unsigned long data_addr;
- unsigned long global_lock;
+ bool global_lock;
unsigned long flags;
unsigned long reference_count;
struct mutex mutex;
* Users, who want to set the size of global CMA area for their system
* should use cma= kernel parameter.
*/
-static const phys_addr_t size_bytes = CMA_SIZE_MBYTES * SZ_1M;
+static const phys_addr_t size_bytes = (phys_addr_t)CMA_SIZE_MBYTES * SZ_1M;
static phys_addr_t size_cmdline = -1;
static phys_addr_t base_cmdline;
static phys_addr_t limit_cmdline;
return ret;
ret = dev_pm_domain_attach(_dev, true);
- if (ret != -EPROBE_DEFER) {
+ if (ret != -EPROBE_DEFER && drv->probe) {
ret = drv->probe(dev);
if (ret)
dev_pm_domain_detach(_dev, true);
{
struct platform_driver *drv = to_platform_driver(_dev->driver);
struct platform_device *dev = to_platform_device(_dev);
- int ret;
+ int ret = 0;
- ret = drv->remove(dev);
+ if (drv->remove)
+ ret = drv->remove(dev);
dev_pm_domain_detach(_dev, true);
return ret;
struct platform_driver *drv = to_platform_driver(_dev->driver);
struct platform_device *dev = to_platform_device(_dev);
- drv->shutdown(dev);
+ if (drv->shutdown)
+ drv->shutdown(dev);
dev_pm_domain_detach(_dev, true);
}
{
drv->driver.owner = owner;
drv->driver.bus = &platform_bus_type;
- if (drv->probe)
- drv->driver.probe = platform_drv_probe;
- if (drv->remove)
- drv->driver.remove = platform_drv_remove;
- if (drv->shutdown)
- drv->driver.shutdown = platform_drv_shutdown;
+ drv->driver.probe = platform_drv_probe;
+ drv->driver.remove = platform_drv_remove;
+ drv->driver.shutdown = platform_drv_shutdown;
return driver_register(&drv->driver);
}
}
EXPORT_SYMBOL_GPL(__platform_create_bundle);
+/**
+ * __platform_register_drivers - register an array of platform drivers
+ * @drivers: an array of drivers to register
+ * @count: the number of drivers to register
+ * @owner: module owning the drivers
+ *
+ * Registers platform drivers specified by an array. On failure to register a
+ * driver, all previously registered drivers will be unregistered. Callers of
+ * this API should use platform_unregister_drivers() to unregister drivers in
+ * the reverse order.
+ *
+ * Returns: 0 on success or a negative error code on failure.
+ */
+int __platform_register_drivers(struct platform_driver * const *drivers,
+ unsigned int count, struct module *owner)
+{
+ unsigned int i;
+ int err;
+
+ for (i = 0; i < count; i++) {
+ pr_debug("registering platform driver %ps\n", drivers[i]);
+
+ err = __platform_driver_register(drivers[i], owner);
+ if (err < 0) {
+ pr_err("failed to register platform driver %ps: %d\n",
+ drivers[i], err);
+ goto error;
+ }
+ }
+
+ return 0;
+
+error:
+ while (i--) {
+ pr_debug("unregistering platform driver %ps\n", drivers[i]);
+ platform_driver_unregister(drivers[i]);
+ }
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(__platform_register_drivers);
+
+/**
+ * platform_unregister_drivers - unregister an array of platform drivers
+ * @drivers: an array of drivers to unregister
+ * @count: the number of drivers to unregister
+ *
+ * Unegisters platform drivers specified by an array. This is typically used
+ * to complement an earlier call to platform_register_drivers(). Drivers are
+ * unregistered in the reverse order in which they were registered.
+ */
+void platform_unregister_drivers(struct platform_driver * const *drivers,
+ unsigned int count)
+{
+ while (count--) {
+ pr_debug("unregistering platform driver %ps\n", drivers[count]);
+ platform_driver_unregister(drivers[count]);
+ }
+}
+EXPORT_SYMBOL_GPL(platform_unregister_drivers);
+
/* modalias support enables more hands-off userspace setup:
* (a) environment variable lets new-style hotplug events work once system is
* fully running: "modprobe $MODALIAS"
unsigned int num_reg_defaults_raw;
/* if set, only the cache is modified not the HW */
- u32 cache_only;
+ bool cache_only;
/* if set, only the HW is modified not the cache */
- u32 cache_bypass;
+ bool cache_bypass;
/* if set, remember to free reg_defaults_raw */
bool cache_free;
const void *reg_defaults_raw;
void *cache;
/* if set, the cache contains newer data than the HW */
- u32 cache_dirty;
+ bool cache_dirty;
/* if set, the HW registers are known to match map->reg_defaults */
bool no_sync_defaults;
if (ret > 0 && val == map->reg_defaults[ret].def)
continue;
- map->cache_bypass = 1;
+ map->cache_bypass = true;
ret = _regmap_write(map, i, val);
- map->cache_bypass = 0;
+ map->cache_bypass = false;
if (ret)
return ret;
dev_dbg(map->dev, "Synced register %#x, value %#x\n",
return -ENOMEM;
if (!map->reg_defaults_raw) {
- u32 cache_bypass = map->cache_bypass;
+ bool cache_bypass = map->cache_bypass;
dev_warn(map->dev, "No cache defaults, reading back from HW\n");
/* Bypass the cache access till data read from HW*/
- map->cache_bypass = 1;
+ map->cache_bypass = true;
tmp_buf = kmalloc(map->cache_size_raw, GFP_KERNEL);
if (!tmp_buf) {
ret = -ENOMEM;
if (!regcache_reg_needs_sync(map, reg, val))
continue;
- map->cache_bypass = 1;
+ map->cache_bypass = true;
ret = _regmap_write(map, reg, val);
- map->cache_bypass = 0;
+ map->cache_bypass = false;
if (ret) {
dev_err(map->dev, "Unable to sync register %#x. %d\n",
reg, ret);
int ret = 0;
unsigned int i;
const char *name;
- unsigned int bypass;
+ bool bypass;
BUG_ON(!map->cache_ops);
map->async = true;
/* Apply any patch first */
- map->cache_bypass = 1;
+ map->cache_bypass = true;
for (i = 0; i < map->patch_regs; i++) {
ret = _regmap_write(map, map->patch[i].reg, map->patch[i].def);
if (ret != 0) {
goto out;
}
}
- map->cache_bypass = 0;
+ map->cache_bypass = false;
if (map->cache_ops->sync)
ret = map->cache_ops->sync(map, 0, map->max_register);
{
int ret = 0;
const char *name;
- unsigned int bypass;
+ bool bypass;
BUG_ON(!map->cache_ops);
if (!regcache_reg_needs_sync(map, regtmp, val))
continue;
- map->cache_bypass = 1;
+ map->cache_bypass = true;
ret = _regmap_write(map, regtmp, val);
- map->cache_bypass = 0;
+ map->cache_bypass = false;
if (ret != 0) {
dev_err(map->dev, "Unable to sync register %#x. %d\n",
regtmp, ret);
dev_dbg(map->dev, "Writing %zu bytes for %d registers from 0x%x-0x%x\n",
count * val_bytes, count, base, cur - map->reg_stride);
- map->cache_bypass = 1;
+ map->cache_bypass = true;
ret = _regmap_raw_write(map, base, *data, count * val_bytes);
if (ret)
dev_err(map->dev, "Unable to sync registers %#x-%#x. %d\n",
base, cur - map->reg_stride, ret);
- map->cache_bypass = 0;
+ map->cache_bypass = false;
*data = NULL;
#include <linux/err.h>
static DEFINE_IDA(soc_ida);
-static DEFINE_SPINLOCK(soc_lock);
static ssize_t soc_info_get(struct device *dev,
struct device_attribute *attr,
}
/* Fetch a unique (reclaimable) SOC ID. */
- do {
- if (!ida_pre_get(&soc_ida, GFP_KERNEL)) {
- ret = -ENOMEM;
- goto out2;
- }
-
- spin_lock(&soc_lock);
- ret = ida_get_new(&soc_ida, &soc_dev->soc_dev_num);
- spin_unlock(&soc_lock);
-
- } while (ret == -EAGAIN);
-
- if (ret)
+ ret = ida_simple_get(&soc_ida, 0, 0, GFP_KERNEL);
+ if (ret < 0)
goto out2;
+ soc_dev->soc_dev_num = ret;
soc_dev->attr = soc_dev_attr;
soc_dev->dev.bus = &soc_bus_type;
return soc_dev;
out3:
- ida_remove(&soc_ida, soc_dev->soc_dev_num);
+ ida_simple_remove(&soc_ida, soc_dev->soc_dev_num);
out2:
kfree(soc_dev);
out1:
/* Ensure soc_dev->attr is freed prior to calling soc_device_unregister. */
void soc_device_unregister(struct soc_device *soc_dev)
{
- ida_remove(&soc_ida, soc_dev->soc_dev_num);
+ ida_simple_remove(&soc_ida, soc_dev->soc_dev_num);
device_unregister(&soc_dev->dev);
}
spinlock_t hci_ibs_lock; /* HCI_IBS state lock */
u8 tx_ibs_state; /* HCI_IBS transmit side power state*/
u8 rx_ibs_state; /* HCI_IBS receive side power state */
- u32 tx_vote; /* Clock must be on for TX */
- u32 rx_vote; /* Clock must be on for RX */
+ bool tx_vote; /* Clock must be on for TX */
+ bool rx_vote; /* Clock must be on for RX */
struct timer_list tx_idle_timer;
u32 tx_idle_delay;
struct timer_list wake_retrans_timer;
to handle */
LIST_HEAD(amd_iommu_unity_map); /* a list of required unity mappings
we find in ACPI */
-u32 amd_iommu_unmap_flush; /* if true, flush on every unmap */
+bool amd_iommu_unmap_flush; /* if true, flush on every unmap */
LIST_HEAD(amd_iommu_list); /* list of all AMD IOMMUs in the
system */
* If true, the addresses will be flushed on unmap time, not when
* they are reused
*/
-extern u32 amd_iommu_unmap_flush;
+extern bool amd_iommu_unmap_flush;
/* Smallest max PASID supported by any IOMMU in the system */
extern u32 amd_iommu_max_pasid;
DECLARE_BITMAP(host_clients_map, MEI_CLIENTS_MAX);
unsigned long me_client_index;
- u32 allow_fixed_address;
+ bool allow_fixed_address;
struct mei_cl wd_cl;
enum mei_wd_states wd_state;
bool tid_release_task_busy;
struct dentry *debugfs_root;
- u32 use_bd; /* Use SGE Back Door intfc for reading SGE Contexts */
- u32 trace_rss; /* 1 implies that different RSS flit per filter is
+ bool use_bd; /* Use SGE Back Door intfc for reading SGE Contexts */
+ bool trace_rss; /* 1 implies that different RSS flit per filter is
* used per filter else if 0 default RSS flit is
* used for all 4 filters.
*/
bool monitor_started;
unsigned int filter_flags;
unsigned long dev_flags;
- u32 dfs_block_radar_events;
+ bool dfs_block_radar_events;
/* protected by conf_mutex */
bool radar_enabled;
u8 ah_retry_long;
u8 ah_retry_short;
- u32 ah_use_32khz_clock;
+ bool ah_use_32khz_clock;
u8 ah_coverage_class;
bool ah_ack_bitrate_high;
ah->config.dma_beacon_response_time = 1;
ah->config.sw_beacon_response_time = 6;
- ah->config.cwm_ignore_extcca = 0;
+ ah->config.cwm_ignore_extcca = false;
ah->config.analog_shiftreg = 1;
ah->config.rx_intr_mitigation = true;
struct ath9k_ops_config {
int dma_beacon_response_time;
int sw_beacon_response_time;
- u32 cwm_ignore_extcca;
+ bool cwm_ignore_extcca;
u32 pcie_waen;
u8 analog_shiftreg;
u32 ofdm_trig_low;
u32 ofdm_trig_high;
u32 cck_trig_high;
u32 cck_trig_low;
- u32 enable_paprd;
+ bool enable_paprd;
int serialize_regmode;
bool rx_intr_mitigation;
bool tx_intr_mitigation;
e->dyn_debug_dentries[id] = d; \
} while (0)
- add_dyn_dbg("debug_xmitpower", B43_DBG_XMITPOWER, 0);
- add_dyn_dbg("debug_dmaoverflow", B43_DBG_DMAOVERFLOW, 0);
- add_dyn_dbg("debug_dmaverbose", B43_DBG_DMAVERBOSE, 0);
- add_dyn_dbg("debug_pwork_fast", B43_DBG_PWORK_FAST, 0);
- add_dyn_dbg("debug_pwork_stop", B43_DBG_PWORK_STOP, 0);
- add_dyn_dbg("debug_lo", B43_DBG_LO, 0);
- add_dyn_dbg("debug_firmware", B43_DBG_FIRMWARE, 0);
- add_dyn_dbg("debug_keys", B43_DBG_KEYS, 0);
- add_dyn_dbg("debug_verbose_stats", B43_DBG_VERBOSESTATS, 0);
+ add_dyn_dbg("debug_xmitpower", B43_DBG_XMITPOWER, false);
+ add_dyn_dbg("debug_dmaoverflow", B43_DBG_DMAOVERFLOW, false);
+ add_dyn_dbg("debug_dmaverbose", B43_DBG_DMAVERBOSE, false);
+ add_dyn_dbg("debug_pwork_fast", B43_DBG_PWORK_FAST, false);
+ add_dyn_dbg("debug_pwork_stop", B43_DBG_PWORK_STOP, false);
+ add_dyn_dbg("debug_lo", B43_DBG_LO, false);
+ add_dyn_dbg("debug_firmware", B43_DBG_FIRMWARE, false);
+ add_dyn_dbg("debug_keys", B43_DBG_KEYS, false);
+ add_dyn_dbg("debug_verbose_stats", B43_DBG_VERBOSESTATS, false);
#undef add_dyn_dbg
}
u32 shm32read_addr_next;
/* Enabled/Disabled list for the dynamic debugging features. */
- u32 dyn_debug[__B43_NR_DYNDBG];
+ bool dyn_debug[__B43_NR_DYNDBG];
/* Dentries for the dynamic debugging entries. */
struct dentry *dyn_debug_dentries[__B43_NR_DYNDBG];
};
e->dyn_debug_dentries[id] = d; \
} while (0)
- add_dyn_dbg("debug_xmitpower", B43legacy_DBG_XMITPOWER, 0);
- add_dyn_dbg("debug_dmaoverflow", B43legacy_DBG_DMAOVERFLOW, 0);
- add_dyn_dbg("debug_dmaverbose", B43legacy_DBG_DMAVERBOSE, 0);
- add_dyn_dbg("debug_pwork_fast", B43legacy_DBG_PWORK_FAST, 0);
- add_dyn_dbg("debug_pwork_stop", B43legacy_DBG_PWORK_STOP, 0);
+ add_dyn_dbg("debug_xmitpower", B43legacy_DBG_XMITPOWER, false);
+ add_dyn_dbg("debug_dmaoverflow", B43legacy_DBG_DMAOVERFLOW, false);
+ add_dyn_dbg("debug_dmaverbose", B43legacy_DBG_DMAVERBOSE, false);
+ add_dyn_dbg("debug_pwork_fast", B43legacy_DBG_PWORK_FAST, false);
+ add_dyn_dbg("debug_pwork_stop", B43legacy_DBG_PWORK_STOP, false);
#undef add_dyn_dbg
}
struct b43legacy_txstatus_log txstatlog;
/* Enabled/Disabled list for the dynamic debugging features. */
- u32 dyn_debug[__B43legacy_NR_DYNDBG];
+ bool dyn_debug[__B43legacy_NR_DYNDBG];
/* Dentries for the dynamic debugging entries. */
struct dentry *dyn_debug_dentries[__B43legacy_NR_DYNDBG];
};
#endif /* CONFIG_IWLEGACY_DEBUGFS */
struct work_struct txpower_work;
- u32 disable_sens_cal;
- u32 disable_chain_noise_cal;
- u32 disable_tx_power_cal;
+ bool disable_sens_cal;
+ bool disable_chain_noise_cal;
+ bool disable_tx_power_cal;
struct work_struct run_time_calib_work;
struct timer_list stats_periodic;
struct timer_list watchdog;
const struct iwl_fw_bcast_filter *bcast_filters;
#ifdef CONFIG_IWLWIFI_DEBUGFS
struct {
- u32 override; /* u32 for debugfs_create_bool */
+ bool override;
struct iwl_bcast_filter_cmd cmd;
} dbgfs_bcast_filtering;
#endif
bool disable_power_off;
bool disable_power_off_d3;
- u32 scan_iter_notif_enabled; /* must be u32 for debugfs_create_bool */
+ bool scan_iter_notif_enabled;
struct debugfs_blob_wrapper nvm_hw_blob;
struct debugfs_blob_wrapper nvm_sw_blob;
int n_nd_channels;
bool net_detect;
#ifdef CONFIG_IWLWIFI_DEBUGFS
- u32 d3_wake_sysassert; /* must be u32 for debugfs_create_bool */
+ bool d3_wake_sysassert;
bool d3_test_active;
bool store_d3_resume_sram;
void *d3_resume_sram;
trc->max_idx = (tbuf_sz / SNIC_TRC_ENTRY_SZ);
trc->rd_idx = trc->wr_idx = 0;
- trc->enable = 1;
+ trc->enable = true;
SNIC_INFO("Trace Facility Enabled.\n Trace Buffer SZ %lu Pages.\n",
tbuf_sz / PAGE_SIZE);
ret = 0;
{
struct snic_trc *trc = &snic_glob->trc;
- trc->enable = 0;
+ trc->enable = false;
snic_trc_debugfs_term();
if (trc->buf) {
u32 max_idx; /* Max Index into trace buffer */
u32 rd_idx;
u32 wr_idx;
- u32 enable; /* Control Variable for Tracing */
+ bool enable; /* Control Variable for Tracing */
struct dentry *trc_enable; /* debugfs file object */
struct dentry *trc_file;
struct uwb_dbg {
struct uwb_pal pal;
- u32 accept;
+ bool accept;
struct list_head rsvs;
struct dentry *root_d;
.llseek = noop_llseek,
};
+static struct dentry *debugfs_create_mode(const char *name, umode_t mode,
+ struct dentry *parent, void *value,
+ const struct file_operations *fops,
+ const struct file_operations *fops_ro,
+ const struct file_operations *fops_wo)
+{
+ /* if there are no write bits set, make read only */
+ if (!(mode & S_IWUGO))
+ return debugfs_create_file(name, mode, parent, value, fops_ro);
+ /* if there are no read bits set, make write only */
+ if (!(mode & S_IRUGO))
+ return debugfs_create_file(name, mode, parent, value, fops_wo);
+
+ return debugfs_create_file(name, mode, parent, value, fops);
+}
+
static int debugfs_u8_set(void *data, u64 val)
{
*(u8 *)data = val;
struct dentry *debugfs_create_u8(const char *name, umode_t mode,
struct dentry *parent, u8 *value)
{
- /* if there are no write bits set, make read only */
- if (!(mode & S_IWUGO))
- return debugfs_create_file(name, mode, parent, value, &fops_u8_ro);
- /* if there are no read bits set, make write only */
- if (!(mode & S_IRUGO))
- return debugfs_create_file(name, mode, parent, value, &fops_u8_wo);
-
- return debugfs_create_file(name, mode, parent, value, &fops_u8);
+ return debugfs_create_mode(name, mode, parent, value, &fops_u8,
+ &fops_u8_ro, &fops_u8_wo);
}
EXPORT_SYMBOL_GPL(debugfs_create_u8);
struct dentry *debugfs_create_u16(const char *name, umode_t mode,
struct dentry *parent, u16 *value)
{
- /* if there are no write bits set, make read only */
- if (!(mode & S_IWUGO))
- return debugfs_create_file(name, mode, parent, value, &fops_u16_ro);
- /* if there are no read bits set, make write only */
- if (!(mode & S_IRUGO))
- return debugfs_create_file(name, mode, parent, value, &fops_u16_wo);
-
- return debugfs_create_file(name, mode, parent, value, &fops_u16);
+ return debugfs_create_mode(name, mode, parent, value, &fops_u16,
+ &fops_u16_ro, &fops_u16_wo);
}
EXPORT_SYMBOL_GPL(debugfs_create_u16);
struct dentry *debugfs_create_u32(const char *name, umode_t mode,
struct dentry *parent, u32 *value)
{
- /* if there are no write bits set, make read only */
- if (!(mode & S_IWUGO))
- return debugfs_create_file(name, mode, parent, value, &fops_u32_ro);
- /* if there are no read bits set, make write only */
- if (!(mode & S_IRUGO))
- return debugfs_create_file(name, mode, parent, value, &fops_u32_wo);
-
- return debugfs_create_file(name, mode, parent, value, &fops_u32);
+ return debugfs_create_mode(name, mode, parent, value, &fops_u32,
+ &fops_u32_ro, &fops_u32_wo);
}
EXPORT_SYMBOL_GPL(debugfs_create_u32);
struct dentry *debugfs_create_u64(const char *name, umode_t mode,
struct dentry *parent, u64 *value)
{
- /* if there are no write bits set, make read only */
- if (!(mode & S_IWUGO))
- return debugfs_create_file(name, mode, parent, value, &fops_u64_ro);
- /* if there are no read bits set, make write only */
- if (!(mode & S_IRUGO))
- return debugfs_create_file(name, mode, parent, value, &fops_u64_wo);
-
- return debugfs_create_file(name, mode, parent, value, &fops_u64);
+ return debugfs_create_mode(name, mode, parent, value, &fops_u64,
+ &fops_u64_ro, &fops_u64_wo);
}
EXPORT_SYMBOL_GPL(debugfs_create_u64);
+static int debugfs_ulong_set(void *data, u64 val)
+{
+ *(unsigned long *)data = val;
+ return 0;
+}
+
+static int debugfs_ulong_get(void *data, u64 *val)
+{
+ *val = *(unsigned long *)data;
+ return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(fops_ulong, debugfs_ulong_get, debugfs_ulong_set, "%llu\n");
+DEFINE_SIMPLE_ATTRIBUTE(fops_ulong_ro, debugfs_ulong_get, NULL, "%llu\n");
+DEFINE_SIMPLE_ATTRIBUTE(fops_ulong_wo, NULL, debugfs_ulong_set, "%llu\n");
+
+/**
+ * debugfs_create_ulong - create a debugfs file that is used to read and write
+ * an unsigned long value.
+ * @name: a pointer to a string containing the name of the file to create.
+ * @mode: the permission that the file should have
+ * @parent: a pointer to the parent dentry for this file. This should be a
+ * directory dentry if set. If this parameter is %NULL, then the
+ * file will be created in the root of the debugfs filesystem.
+ * @value: a pointer to the variable that the file should read to and write
+ * from.
+ *
+ * This function creates a file in debugfs with the given name that
+ * contains the value of the variable @value. If the @mode variable is so
+ * set, it can be read from, and written to.
+ *
+ * This function will return a pointer to a dentry if it succeeds. This
+ * pointer must be passed to the debugfs_remove() function when the file is
+ * to be removed (no automatic cleanup happens if your module is unloaded,
+ * you are responsible here.) If an error occurs, %NULL will be returned.
+ *
+ * If debugfs is not enabled in the kernel, the value -%ENODEV will be
+ * returned. It is not wise to check for this value, but rather, check for
+ * %NULL or !%NULL instead as to eliminate the need for #ifdef in the calling
+ * code.
+ */
+struct dentry *debugfs_create_ulong(const char *name, umode_t mode,
+ struct dentry *parent, unsigned long *value)
+{
+ return debugfs_create_mode(name, mode, parent, value, &fops_ulong,
+ &fops_ulong_ro, &fops_ulong_wo);
+}
+EXPORT_SYMBOL_GPL(debugfs_create_ulong);
+
DEFINE_SIMPLE_ATTRIBUTE(fops_x8, debugfs_u8_get, debugfs_u8_set, "0x%02llx\n");
DEFINE_SIMPLE_ATTRIBUTE(fops_x8_ro, debugfs_u8_get, NULL, "0x%02llx\n");
DEFINE_SIMPLE_ATTRIBUTE(fops_x8_wo, NULL, debugfs_u8_set, "0x%02llx\n");
DEFINE_SIMPLE_ATTRIBUTE(fops_x32_wo, NULL, debugfs_u32_set, "0x%08llx\n");
DEFINE_SIMPLE_ATTRIBUTE(fops_x64, debugfs_u64_get, debugfs_u64_set, "0x%016llx\n");
+DEFINE_SIMPLE_ATTRIBUTE(fops_x64_ro, debugfs_u64_get, NULL, "0x%016llx\n");
+DEFINE_SIMPLE_ATTRIBUTE(fops_x64_wo, NULL, debugfs_u64_set, "0x%016llx\n");
/*
* debugfs_create_x{8,16,32,64} - create a debugfs file that is used to read and write an unsigned {8,16,32,64}-bit value
struct dentry *debugfs_create_x8(const char *name, umode_t mode,
struct dentry *parent, u8 *value)
{
- /* if there are no write bits set, make read only */
- if (!(mode & S_IWUGO))
- return debugfs_create_file(name, mode, parent, value, &fops_x8_ro);
- /* if there are no read bits set, make write only */
- if (!(mode & S_IRUGO))
- return debugfs_create_file(name, mode, parent, value, &fops_x8_wo);
-
- return debugfs_create_file(name, mode, parent, value, &fops_x8);
+ return debugfs_create_mode(name, mode, parent, value, &fops_x8,
+ &fops_x8_ro, &fops_x8_wo);
}
EXPORT_SYMBOL_GPL(debugfs_create_x8);
struct dentry *debugfs_create_x16(const char *name, umode_t mode,
struct dentry *parent, u16 *value)
{
- /* if there are no write bits set, make read only */
- if (!(mode & S_IWUGO))
- return debugfs_create_file(name, mode, parent, value, &fops_x16_ro);
- /* if there are no read bits set, make write only */
- if (!(mode & S_IRUGO))
- return debugfs_create_file(name, mode, parent, value, &fops_x16_wo);
-
- return debugfs_create_file(name, mode, parent, value, &fops_x16);
+ return debugfs_create_mode(name, mode, parent, value, &fops_x16,
+ &fops_x16_ro, &fops_x16_wo);
}
EXPORT_SYMBOL_GPL(debugfs_create_x16);
struct dentry *debugfs_create_x32(const char *name, umode_t mode,
struct dentry *parent, u32 *value)
{
- /* if there are no write bits set, make read only */
- if (!(mode & S_IWUGO))
- return debugfs_create_file(name, mode, parent, value, &fops_x32_ro);
- /* if there are no read bits set, make write only */
- if (!(mode & S_IRUGO))
- return debugfs_create_file(name, mode, parent, value, &fops_x32_wo);
-
- return debugfs_create_file(name, mode, parent, value, &fops_x32);
+ return debugfs_create_mode(name, mode, parent, value, &fops_x32,
+ &fops_x32_ro, &fops_x32_wo);
}
EXPORT_SYMBOL_GPL(debugfs_create_x32);
struct dentry *debugfs_create_x64(const char *name, umode_t mode,
struct dentry *parent, u64 *value)
{
- return debugfs_create_file(name, mode, parent, value, &fops_x64);
+ return debugfs_create_mode(name, mode, parent, value, &fops_x64,
+ &fops_x64_ro, &fops_x64_wo);
}
EXPORT_SYMBOL_GPL(debugfs_create_x64);
}
DEFINE_SIMPLE_ATTRIBUTE(fops_size_t, debugfs_size_t_get, debugfs_size_t_set,
"%llu\n"); /* %llu and %zu are more or less the same */
+DEFINE_SIMPLE_ATTRIBUTE(fops_size_t_ro, debugfs_size_t_get, NULL, "%llu\n");
+DEFINE_SIMPLE_ATTRIBUTE(fops_size_t_wo, NULL, debugfs_size_t_set, "%llu\n");
/**
* debugfs_create_size_t - create a debugfs file that is used to read and write an size_t value
struct dentry *debugfs_create_size_t(const char *name, umode_t mode,
struct dentry *parent, size_t *value)
{
- return debugfs_create_file(name, mode, parent, value, &fops_size_t);
+ return debugfs_create_mode(name, mode, parent, value, &fops_size_t,
+ &fops_size_t_ro, &fops_size_t_wo);
}
EXPORT_SYMBOL_GPL(debugfs_create_size_t);
struct dentry *debugfs_create_atomic_t(const char *name, umode_t mode,
struct dentry *parent, atomic_t *value)
{
- /* if there are no write bits set, make read only */
- if (!(mode & S_IWUGO))
- return debugfs_create_file(name, mode, parent, value,
- &fops_atomic_t_ro);
- /* if there are no read bits set, make write only */
- if (!(mode & S_IRUGO))
- return debugfs_create_file(name, mode, parent, value,
- &fops_atomic_t_wo);
-
- return debugfs_create_file(name, mode, parent, value, &fops_atomic_t);
+ return debugfs_create_mode(name, mode, parent, value, &fops_atomic_t,
+ &fops_atomic_t_ro, &fops_atomic_t_wo);
}
EXPORT_SYMBOL_GPL(debugfs_create_atomic_t);
size_t count, loff_t *ppos)
{
char buf[3];
- u32 *val = file->private_data;
+ bool *val = file->private_data;
if (*val)
buf[0] = 'Y';
char buf[32];
size_t buf_size;
bool bv;
- u32 *val = file->private_data;
+ bool *val = file->private_data;
buf_size = min(count, (sizeof(buf)-1));
if (copy_from_user(buf, user_buf, buf_size))
.llseek = default_llseek,
};
+static const struct file_operations fops_bool_ro = {
+ .read = debugfs_read_file_bool,
+ .open = simple_open,
+ .llseek = default_llseek,
+};
+
+static const struct file_operations fops_bool_wo = {
+ .write = debugfs_write_file_bool,
+ .open = simple_open,
+ .llseek = default_llseek,
+};
+
/**
* debugfs_create_bool - create a debugfs file that is used to read and write a boolean value
* @name: a pointer to a string containing the name of the file to create.
* code.
*/
struct dentry *debugfs_create_bool(const char *name, umode_t mode,
- struct dentry *parent, u32 *value)
+ struct dentry *parent, bool *value)
{
- return debugfs_create_file(name, mode, parent, value, &fops_bool);
+ return debugfs_create_mode(name, mode, parent, value, &fops_bool,
+ &fops_bool_ro, &fops_bool_wo);
}
EXPORT_SYMBOL_GPL(debugfs_create_bool);
{
const struct sysfs_ops *ops = sysfs_file_ops(of->kn);
struct kobject *kobj = of->kn->parent->priv;
+ size_t len;
/*
* If buf != of->prealloc_buf, we don't know how
*/
if (pos || WARN_ON_ONCE(buf != of->prealloc_buf))
return 0;
- return ops->show(kobj, of->kn->priv, buf);
+ len = ops->show(kobj, of->kn->priv, buf);
+ return min(count, len);
}
/* kernfs write callback for regular sysfs files */
struct dentry *parent, u32 *value);
struct dentry *debugfs_create_u64(const char *name, umode_t mode,
struct dentry *parent, u64 *value);
+struct dentry *debugfs_create_ulong(const char *name, umode_t mode,
+ struct dentry *parent, unsigned long *value);
struct dentry *debugfs_create_x8(const char *name, umode_t mode,
struct dentry *parent, u8 *value);
struct dentry *debugfs_create_x16(const char *name, umode_t mode,
struct dentry *debugfs_create_atomic_t(const char *name, umode_t mode,
struct dentry *parent, atomic_t *value);
struct dentry *debugfs_create_bool(const char *name, umode_t mode,
- struct dentry *parent, u32 *value);
+ struct dentry *parent, bool *value);
struct dentry *debugfs_create_blob(const char *name, umode_t mode,
struct dentry *parent,
static inline struct dentry *debugfs_create_bool(const char *name, umode_t mode,
struct dentry *parent,
- u32 *value)
+ bool *value)
{
return ERR_PTR(-ENODEV);
}
struct dentry *debugfs;
u8 fake_inject_layer[EDAC_MAX_LAYERS];
- u32 fake_inject_ue;
+ bool fake_inject_ue;
u16 fake_inject_count;
};
atomic_t times;
atomic_t space;
unsigned long verbose;
- u32 task_filter;
+ bool task_filter;
unsigned long stacktrace_depth;
unsigned long require_start;
unsigned long require_end;
struct kobject *parent;
struct kset *kset;
struct kobj_type *ktype;
- struct kernfs_node *sd;
+ struct kernfs_node *sd; /* sysfs directory entry */
struct kref kref;
#ifdef CONFIG_DEBUG_KOBJECT_RELEASE
struct delayed_work release;
struct resource *res, unsigned int n_res,
const void *data, size_t size, struct module *module);
+int __platform_register_drivers(struct platform_driver * const *drivers,
+ unsigned int count, struct module *owner);
+void platform_unregister_drivers(struct platform_driver * const *drivers,
+ unsigned int count);
+
+#define platform_register_drivers(drivers, count) \
+ __platform_register_drivers(drivers, count, THIS_MODULE)
+
/* early platform driver interface */
struct early_platform_driver {
const char *class_str;
static struct {
struct fault_attr attr;
- u32 ignore_private;
+ bool ignore_private;
} fail_futex = {
.attr = FAULT_ATTR_INITIALIZER,
- .ignore_private = 0,
+ .ignore_private = false,
};
static int __init setup_fail_futex(char *str)
if (!iomap)
return;
- for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
+ for (i = 0; i < PCIM_IOMAP_MAX; i++) {
if (!(mask & (1 << i)))
continue;
static DEFINE_SPINLOCK(free_entries_lock);
/* Global disable flag - will be set in case of an error */
-static u32 global_disable __read_mostly;
+static bool global_disable __read_mostly;
/* Early initialization disable flag, set at the end of dma_debug_init */
static bool dma_debug_initialized __read_mostly;
kobject_put(kobj->parent);
kobj->parent = NULL;
}
+EXPORT_SYMBOL(kobject_del);
/**
* kobject_get - increment refcount for object.
}
return kobj;
}
+EXPORT_SYMBOL(kobject_get);
static struct kobject * __must_check kobject_get_unless_zero(struct kobject *kobj)
{
kref_put(&kobj->kref, kobject_release);
}
}
+EXPORT_SYMBOL(kobject_put);
static void dynamic_kobj_release(struct kobject *kobj)
{
kobject_uevent(&k->kobj, KOBJ_ADD);
return 0;
}
+EXPORT_SYMBOL(kset_register);
/**
* kset_unregister - remove a kset.
kobject_del(&k->kobj);
kobject_put(&k->kobj);
}
+EXPORT_SYMBOL(kset_unregister);
/**
* kset_find_obj - search for object in kset.
kobj_ns_ops_tbl[type]->drop_ns(ns);
spin_unlock(&kobj_ns_type_lock);
}
-
-EXPORT_SYMBOL(kobject_get);
-EXPORT_SYMBOL(kobject_put);
-EXPORT_SYMBOL(kobject_del);
-
-EXPORT_SYMBOL(kset_register);
-EXPORT_SYMBOL(kset_unregister);
static struct {
struct fault_attr attr;
- u32 ignore_gfp_wait;
- int cache_filter;
+ bool ignore_gfp_wait;
+ bool cache_filter;
} failslab = {
.attr = FAULT_ATTR_INITIALIZER,
- .ignore_gfp_wait = 1,
- .cache_filter = 0,
+ .ignore_gfp_wait = true,
+ .cache_filter = false,
};
bool should_failslab(size_t size, gfp_t gfpflags, unsigned long cache_flags)
static struct {
struct fault_attr attr;
- u32 ignore_gfp_highmem;
- u32 ignore_gfp_wait;
+ bool ignore_gfp_highmem;
+ bool ignore_gfp_wait;
u32 min_order;
} fail_page_alloc = {
.attr = FAULT_ATTR_INITIALIZER,
- .ignore_gfp_wait = 1,
- .ignore_gfp_highmem = 1,
+ .ignore_gfp_wait = true,
+ .ignore_gfp_highmem = true,
.min_order = 1,
};
int fw;
int fw_ver;
- u32 running;
+ bool running;
struct list_head ctl_list;
projects / karo-tx-linux.git / commitdiff