powerpc: switch to generic compat rt_sigprocmask()

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

2 files changed, 1 insertions, 35 deletions

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index dd52babec7d7..e43cd208dd07 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_SIGPROCMASK
 
 config EARLY_PRINTK
         bool
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 0ea248c893cb..5d2fadcdfba8 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -620,41 +620,6 @@ long compat_sys_rt_sigaction(int sig, const struct sigaction32 __user *act,
         return ret;
 }
 
-/*
- * Note: it is necessary to treat how as an unsigned int, with the
- * corresponding cast to a signed int to insure that the proper
- * conversion (sign extension) between the register representation
- * of a signed int (msr in 32-bit mode) and the register representation
- * of a signed int (msr in 64-bit mode) is performed.
- */
-long compat_sys_rt_sigprocmask(u32 how, compat_sigset_t __user *set,
-                compat_sigset_t __user *oset, size_t sigsetsize)
-{
-        sigset_t s;
-        sigset_t __user *up;
-        int ret;
-        mm_segment_t old_fs = get_fs();
-
-        if (set) {
-                if (get_sigset_t(&s, set))
-                        return -EFAULT;
-        }
-
-        set_fs(KERNEL_DS);
-        /* This is valid because of the set_fs() */
-        up = (sigset_t __user *) &s;
-        ret = sys_rt_sigprocmask((int)how, set ? up : NULL, oset ? up : NULL,
-                                 sigsetsize);
-        set_fs(old_fs);
-        if (ret)
-                return ret;
-        if (oset) {
-                if (put_sigset_t(oset, &s))
-                        return -EFAULT;
-        }
-        return 0;
-}
-
 long compat_sys_rt_sigpending(compat_sigset_t __user *set, compat_size_t sigsetsize)
 {
         sigset_t s;