[POWERPC] Less ifdef's in signal.c/signal.h

This patch moves things around a little bit in the new common signal.c
and signal.h files to remove the last #ifdef in the middle of the
common do_signal().

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 24 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/signal.h b/arch/powerpc/kernel/signal.h
index c284f75afe77..77efb3d5465a 100644
--- a/arch/powerpc/kernel/signal.h
+++ b/arch/powerpc/kernel/signal.h
@@ -24,8 +24,32 @@ extern int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
                               siginfo_t *info, sigset_t *oldset,
                               struct pt_regs *regs);
 
+
+#ifdef CONFIG_PPC64
+
+static inline int is_32bit_task(void)
+{
+        return test_thread_flag(TIF_32BIT);
+}
+
 extern int handle_rt_signal64(int signr, struct k_sigaction *ka,
                               siginfo_t *info, sigset_t *set,
                               struct pt_regs *regs);
 
+#else /* CONFIG_PPC64 */
+
+static inline int is_32bit_task(void)
+{
+        return 1;
+}
+
+static inline int handle_rt_signal64(int signr, struct k_sigaction *ka,
+                                     siginfo_t *info, sigset_t *set,
+                                     struct pt_regs *regs)
+{
+        return -EFAULT;
+}
+
+#endif /* !defined(CONFIG_PPC64) */
+
 #endif  /* _POWERPC_ARCH_SIGNAL_H */