arm64: switch to generic compat rt_sigprocmask()

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

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index d9c901dd3fdb58d35af6016854eb848e5f06353c..4b99d632329e3517b131bbfbb7da89306987992a 100644 (file)
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -6,6 +6,7 @@ config ARM64
        select CLONE_BACKWARDS
        select COMMON_CLK
        select GENERIC_CLOCKEVENTS
+       select GENERIC_COMPAT_RT_SIGPROCMASK
        select GENERIC_HARDIRQS_NO_DEPRECATED
        select GENERIC_IOMAP
        select GENERIC_IRQ_PROBE

diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c
index 54920c5342b21c6f82e71f15e7f9003c91483af9..dcc13bd94fb0feee4d7c083011c0ab2010234d0b 100644 (file)
--- a/arch/arm64/kernel/signal32.c
+++ b/arch/arm64/kernel/signal32.c
@@ -693,39 +693,6 @@ int compat_setup_frame(int usig, struct k_sigaction *ka, sigset_t *set,
        return err;
 }
 
-/*
- * RT signals don't have generic compat wrappers.
- * See arch/powerpc/kernel/signal_32.c
- */
-asmlinkage int compat_sys_rt_sigprocmask(int how, compat_sigset_t __user *set,
-                                        compat_sigset_t __user *oset,
-                                        compat_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(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;
-}
-
 asmlinkage int compat_sys_rt_sigpending(compat_sigset_t __user *set,
                                        compat_size_t sigsetsize)
 {