Merge branch 'signal-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc

Pull arch signal handling cleanup from Richard Weinberger:
 "This patch series moves all remaining archs to the get_signal(),
  signal_setup_done() and sigsp() functions.

  Currently these archs use open coded variants of the said functions.
  Further, unused parameters get removed from get_signal_to_deliver(),
  tracehook_signal_handler() and signal_delivered().

  At the end of the day we save around 500 lines of code."

* 'signal-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc: (43 commits)
  powerpc: Use sigsp()
  openrisc: Use sigsp()
  mn10300: Use sigsp()
  mips: Use sigsp()
  microblaze: Use sigsp()
  metag: Use sigsp()
  m68k: Use sigsp()
  m32r: Use sigsp()
  hexagon: Use sigsp()
  frv: Use sigsp()
  cris: Use sigsp()
  c6x: Use sigsp()
  blackfin: Use sigsp()
  avr32: Use sigsp()
  arm64: Use sigsp()
  arc: Use sigsp()
  sas_ss_flags: Remove nested ternary if
  Rip out get_signal_to_deliver()
  Clean up signal_delivered()
  tracehook_signal_handler: Remove sig, info, ka and regs
  ...

1 files changed, 3 insertions, 7 deletions

diff --git a/arch/metag/kernel/signal.c b/arch/metag/kernel/signal.c
index b9e4a82d2bd4..0d100d5c1407 100644
--- a/arch/metag/kernel/signal.c
+++ b/arch/metag/kernel/signal.c
@@ -140,13 +140,9 @@ static int setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
 /*
  * Determine which stack to use..
  */
-static void __user *get_sigframe(struct k_sigaction *ka, unsigned long sp,
-                                 size_t frame_size)
+static void __user *get_sigframe(struct ksignal *ksig, unsigned long sp)
 {
-        /* Meta stacks grows upwards */
-        if ((ka->sa.sa_flags & SA_ONSTACK) && (sas_ss_flags(sp) == 0))
-                sp = current->sas_ss_sp;
-
+        sp = sigsp(sp, ksig);
         sp = (sp + 7) & ~7;                     /* 8byte align stack */
 
         return (void __user *)sp;
@@ -159,7 +155,7 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
         int err;
         unsigned long code;
 
-        frame = get_sigframe(&ksig->ka, regs->REG_SP, sizeof(*frame));
+        frame = get_sigframe(ksig, regs->REG_SP);
         if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
                 return -EFAULT;