parisc: switch to generic compat rt_sigprocmask()

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

arch/parisc/Kconfig

@@ -24,6 +24,7 @@ config PARISC
 	select MODULES_USE_ELF_RELA
 	select CLONE_BACKWARDS
 	select GENERIC_SIGALTSTACK
+	select GENERIC_COMPAT_RT_SIGPROCMASK
 
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used

arch/parisc/kernel/signal32.c

@@ -72,41 +72,6 @@ put_sigset32(compat_sigset_t __user *up, sigset_t *set, size_t sz)
 	return copy_to_user(up, &s, sizeof s);
 }
 
-static int
-get_sigset32(compat_sigset_t __user *up, sigset_t *set, size_t sz)
-{
-	compat_sigset_t s;
-	int r;
-
-	if (sz != sizeof *set)
-		return -EINVAL;
-
-	if ((r = copy_from_user(&s, up, sz)) == 0) {
-		sigset_32to64(set, &s);
-	}
-
-	return r;
-}
-
-int sys32_rt_sigprocmask(int how, compat_sigset_t __user *set, compat_sigset_t __user *oset,
-				    unsigned int sigsetsize)
-{
-	sigset_t old_set, new_set;
-	int ret;
-
-	if (set && get_sigset32(set, &new_set, sigsetsize))
-		return -EFAULT;
-	
-	KERNEL_SYSCALL(ret, sys_rt_sigprocmask, how, set ? (sigset_t __user *)&new_set : NULL,
-				 oset ? (sigset_t __user *)&old_set : NULL, sigsetsize);
-
-	if (!ret && oset && put_sigset32(oset, &old_set, sigsetsize))
-		return -EFAULT;
-
-	return ret;
-}
-
-
 int sys32_rt_sigpending(compat_sigset_t __user *uset, unsigned int sigsetsize)
 {
 	int ret;

arch/parisc/kernel/syscall_table.S

@@ -266,7 +266,7 @@
 	/* signals need a careful review */
 	ENTRY_SAME(rt_sigreturn_wrapper)
 	ENTRY_DIFF(rt_sigaction)
-	ENTRY_DIFF(rt_sigprocmask)	/* 175 */
+	ENTRY_COMP(rt_sigprocmask)	/* 175 */
 	ENTRY_DIFF(rt_sigpending)
 	ENTRY_COMP(rt_sigtimedwait)
 	/* even though the struct siginfo_t is different, it appears like