powerpc: switch to generic compat rt_sigaction()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

3 files changed, 1 insertions, 39 deletions

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 09b177bdef66..bec7808b7b0f 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -145,6 +145,7 @@ config PPC
         select MODULES_USE_ELF_RELA
         select CLONE_BACKWARDS
         select GENERIC_SIGALTSTACK
+        select GENERIC_COMPAT_RT_SIGACTION
         select GENERIC_COMPAT_RT_SIGQUEUEINFO
         select GENERIC_COMPAT_RT_SIGPROCMASK
         select GENERIC_COMPAT_RT_SIGPENDING
diff --git a/arch/powerpc/kernel/ppc32.h b/arch/powerpc/kernel/ppc32.h
index f6bee3e6f438..fe92b0d0603a 100644
--- a/arch/powerpc/kernel/ppc32.h
+++ b/arch/powerpc/kernel/ppc32.h
@@ -25,15 +25,6 @@ struct __old_sigaction32 {
         compat_uptr_t           sa_restorer;     /* not used by Linux/SPARC yet */
 };
 
-
-
-struct sigaction32 {
-       compat_uptr_t  sa_handler;       /* Really a pointer, but need to deal with 32 bits */
-       unsigned int sa_flags;
-       compat_uptr_t sa_restorer;       /* Another 32 bit pointer */
-       compat_sigset_t sa_mask;         /* A 32 bit mask */
-};
-
 struct pt_regs32 {
         unsigned int gpr[32];
         unsigned int nip;
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 488a7c542a3a..16ec1c9899ad 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -579,36 +579,6 @@ static long restore_user_regs(struct pt_regs *regs,
 }
 
 #ifdef CONFIG_PPC64
-long compat_sys_rt_sigaction(int sig, const struct sigaction32 __user *act,
-                struct sigaction32 __user *oact, size_t sigsetsize)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
-
-        /* XXX: Don't preclude handling different sized sigset_t's.  */
-        if (sigsetsize != sizeof(compat_sigset_t))
-                return -EINVAL;
-
-        if (act) {
-                compat_uptr_t handler;
-
-                ret = get_user(handler, &act->sa_handler);
-                new_ka.sa.sa_handler = compat_ptr(handler);
-                ret |= get_sigset_t(&new_ka.sa.sa_mask, &act->sa_mask);
-                ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
-                if (ret)
-                        return -EFAULT;
-        }
-
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                ret = put_user(to_user_ptr(old_ka.sa.sa_handler), &oact->sa_handler);
-                ret |= put_sigset_t(&oact->sa_mask, &old_ka.sa.sa_mask);
-                ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
-        }
-        return ret;
-}
-
 int copy_siginfo_to_user32(struct compat_siginfo __user *d, siginfo_t *s)
 {
         int err;