xtensa: Use get_signal() signal_setup_done()

Use the more generic functions get_signal() signal_setup_done()
for signal delivery.

Signed-off-by: Richard Weinberger <richard@nod.at>

diff --git a/arch/xtensa/kernel/signal.c b/arch/xtensa/kernel/signal.c
index 98b67d5f15144659dd9ea6954ab440e964a2aae8..4612321c73cc1d78952e5b89ad74b73973249e39 100644 (file)
--- a/arch/xtensa/kernel/signal.c
+++ b/arch/xtensa/kernel/signal.c
@@ -331,17 +331,17 @@ gen_return_code(unsigned char *codemem)
 }
 
 
-static int setup_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
-                      sigset_t *set, struct pt_regs *regs)
+static int setup_frame(struct ksignal *ksig, sigset_t *set,
+                      struct pt_regs *regs)
 {
        struct rt_sigframe *frame;
-       int err = 0;
+       int err = 0, sig = ksig->sig;
        int signal;
        unsigned long sp, ra, tp;
 
        sp = regs->areg[1];
 
-       if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && sas_ss_flags(sp) == 0) {
+       if ((ksig->ka.sa.sa_flags & SA_ONSTACK) != 0 && sas_ss_flags(sp) == 0) {
                sp = current->sas_ss_sp + current->sas_ss_size;
        }
 
@@ -351,7 +351,7 @@ static int setup_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
                panic ("Double exception sys_sigreturn\n");
 
        if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) {
-               goto give_sigsegv;
+               return -EFAULT;
        }
 
        signal = current_thread_info()->exec_domain
@@ -360,8 +360,8 @@ static int setup_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
                ? current_thread_info()->exec_domain->signal_invmap[sig]
                : sig;
 
-       if (ka->sa.sa_flags & SA_SIGINFO) {
-               err |= copy_siginfo_to_user(&frame->info, info);
+       if (ksig->ka.sa.sa_flags & SA_SIGINFO) {
+               err |= copy_siginfo_to_user(&frame->info, &ksig->info);
        }
 
        /* Create the user context.  */
@@ -372,8 +372,8 @@ static int setup_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        err |= setup_sigcontext(frame, regs);
        err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
 
-       if (ka->sa.sa_flags & SA_RESTORER) {
-               ra = (unsigned long)ka->sa.sa_restorer;
+       if (ksig->ka.sa.sa_flags & SA_RESTORER) {
+               ra = (unsigned long)ksig->ka.sa.sa_restorer;
        } else {
 
                /* Create sys_rt_sigreturn syscall in stack frame */
@@ -381,7 +381,7 @@ static int setup_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
                err |= gen_return_code(frame->retcode);
 
                if (err) {
-                       goto give_sigsegv;
+                       return -EFAULT;
                }
                ra = (unsigned long) frame->retcode;
        }
@@ -393,7 +393,7 @@ static int setup_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 
        /* Set up registers for signal handler; preserve the threadptr */
        tp = regs->threadptr;
-       start_thread(regs, (unsigned long) ka->sa.sa_handler,
+       start_thread(regs, (unsigned long) ksig->ka.sa.sa_handler,
                     (unsigned long) frame);
 
        /* Set up a stack frame for a call4
@@ -416,10 +416,6 @@ static int setup_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 #endif
 
        return 0;
-
-give_sigsegv:
-       force_sigsegv(sig, current);
-       return -EFAULT;
 }
 
 /*
@@ -433,15 +429,11 @@ give_sigsegv:
  */
 static void do_signal(struct pt_regs *regs)
 {
-       siginfo_t info;
-       int signr;
-       struct k_sigaction ka;
+       struct ksignal ksig;
 
        task_pt_regs(current)->icountlevel = 0;
 
-       signr = get_signal_to_deliver(&info, &ka, regs, NULL);
-
-       if (signr > 0) {
+       if (get_signal(&ksig)) {
                int ret;
 
                /* Are we from a system call? */
@@ -457,7 +449,7 @@ static void do_signal(struct pt_regs *regs)
                                        break;
 
                                case -ERESTARTSYS:
-                                       if (!(ka.sa.sa_flags & SA_RESTART)) {
+                                       if (!(ksig.ka.sa.sa_flags & SA_RESTART)) {
                                                regs->areg[2] = -EINTR;
                                                break;
                                        }
@@ -476,11 +468,8 @@ static void do_signal(struct pt_regs *regs)
 
                /* Whee!  Actually deliver the signal.  */
                /* Set up the stack frame */
-               ret = setup_frame(signr, &ka, &info, sigmask_to_save(), regs);
-               if (ret)
-                       return;
-
-               signal_delivered(signr, &info, &ka, regs, 0);
+               ret = setup_frame(&ksig, sigmask_to_save(), regs);
+               signal_setup_done(ret, &ksig, 0);
                if (current->ptrace & PT_SINGLESTEP)
                        task_pt_regs(current)->icountlevel = 1;