commit 67b464a89c21c9edd45ad15c457bb5f25dadecfd
author Mathieu Malaterre <malat@debian.org> Sun Feb 25 18:22:19 2018 +0100
committer Michael Ellerman <mpe@ellerman.id.au> Tue Mar 13 15:50:33 2018 +1100
tree 297a23a904e04dac29fa0df0a1baba7225134ad8
parent 174b701d3dcd14514f869e2bc08ac404b16fdb9d

powerpc/32: Mark both tmp variables as unused

Since the value of `tmp` is never intended to be read, declare both `tmp`
variables as unused. Fix warning (treated as error in W=1):

  arch/powerpc/kernel/signal_32.c: In function ‘sys_swapcontext’:
  arch/powerpc/kernel/signal_32.c:1048:16: error: variable ‘tmp’ set but not used
  arch/powerpc/kernel/signal_32.c: In function ‘sys_debug_setcontext’:
  arch/powerpc/kernel/signal_32.c:1234:16: error: variable ‘tmp’ set but not used

Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/kernel/signal_32.c

diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index a46de00..492f034 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -1045,7 +1045,7 @@
 		     struct ucontext __user *new_ctx,
 		     int ctx_size, int r6, int r7, int r8, struct pt_regs *regs)
 {
-	unsigned char tmp;
+	unsigned char tmp __maybe_unused;
 	int ctx_has_vsx_region = 0;
 
 #ifdef CONFIG_PPC64
@@ -1231,7 +1231,7 @@
 {
 	struct sig_dbg_op op;
 	int i;
-	unsigned char tmp;
+	unsigned char tmp __maybe_unused;
 	unsigned long new_msr = regs->msr;
 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
 	unsigned long new_dbcr0 = current->thread.debug.dbcr0;