x86-64, ia32: Drop sys32_rt_sigprocmask

On x86, the only difference between sys_rt_sigprocmask and
sys32_rt_sigprocmask is the alignment of the data structures.
However, x86 allows data accesses with arbitrary alignment, and
therefore there is no reason for this code to be different.

Reported-by: Gregory M. Lueck <gregory.m.lueck@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 0 insertions, 40 deletions

diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index f6f5c53dc903..aec2202a596c 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -287,46 +287,6 @@ asmlinkage long sys32_sigaction(int sig, struct old_sigaction32 __user *act,
         return ret;
 }
 
-asmlinkage long sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
-                                     compat_sigset_t __user *oset,
-                                     unsigned int sigsetsize)
-{
-        sigset_t s;
-        compat_sigset_t s32;
-        int ret;
-        mm_segment_t old_fs = get_fs();
-
-        if (set) {
-                if (copy_from_user(&s32, set, sizeof(compat_sigset_t)))
-                        return -EFAULT;
-                switch (_NSIG_WORDS) {
-                case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
-                case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
-                case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
-                case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
-                }
-        }
-        set_fs(KERNEL_DS);
-        ret = sys_rt_sigprocmask(how,
-                                 set ? (sigset_t __user *)&s : NULL,
-                                 oset ? (sigset_t __user *)&s : NULL,
-                                 sigsetsize);
-        set_fs(old_fs);
-        if (ret)
-                return ret;
-        if (oset) {
-                switch (_NSIG_WORDS) {
-                case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
-                case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
-                case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
-                case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
-                }
-                if (copy_to_user(oset, &s32, sizeof(compat_sigset_t)))
-                        return -EFAULT;
-        }
-        return 0;
-}
-
 asmlinkage long sys32_alarm(unsigned int seconds)
 {
         return alarm_setitimer(seconds);