[PATCH] powerpc:mark expected switch fall-throughs

[Lei Xu]

When building kernel with -Wimplicit-fallthrough and -Werror, it
reported the follwoing errors:

arch/powerpc/kernel/align.c: In function âemulate_speâ:
arch/powerpc/kernel/align.c:178:8: error: this statement may fall through [-Werror=implicit-fallthrough=]
    ret |= __get_user_inatomic(temp.v[3], p++);
        ^~
arch/powerpc/kernel/align.c:179:3: note: here
   case 4:
   ^~~~
arch/powerpc/kernel/align.c:181:8: error: this statement may fall through [-Werror=implicit-fallthrough=]
    ret |= __get_user_inatomic(temp.v[5], p++);
        ^~
arch/powerpc/kernel/align.c:182:3: note: here
   case 2:
   ^~~~
arch/powerpc/kernel/align.c:261:8: error: this statement may fall through [-Werror=implicit-fallthrough=]
    ret |= __put_user_inatomic(data.v[3], p++);
        ^~
arch/powerpc/kernel/align.c:262:3: note: here
   case 4:
   ^~~~
arch/powerpc/kernel/align.c:264:8: error: this statement may fall through [-Werror=implicit-fallthrough=]
    ret |= __put_user_inatomic(data.v[5], p++);
        ^~
arch/powerpc/kernel/align.c:265:3: note: here
   case 2:
   ^~~~
cc1: all warnings being treated as errors

This patch fixs the above errors.

Signed-off-by: Lei Xu <lei.xu@xxxxxxx>
---
 arch/powerpc/kernel/align.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index 7107ad8..92045ed 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -176,9 +176,11 @@ static int emulate_spe(struct pt_regs *regs, unsigned int reg,
 			ret |= __get_user_inatomic(temp.v[1], p++);
 			ret |= __get_user_inatomic(temp.v[2], p++);
 			ret |= __get_user_inatomic(temp.v[3], p++);
+			/* fall through */
 		case 4:
 			ret |= __get_user_inatomic(temp.v[4], p++);
 			ret |= __get_user_inatomic(temp.v[5], p++);
+			/* fall through */
 		case 2:
 			ret |= __get_user_inatomic(temp.v[6], p++);
 			ret |= __get_user_inatomic(temp.v[7], p++);
@@ -259,9 +261,11 @@ static int emulate_spe(struct pt_regs *regs, unsigned int reg,
 			ret |= __put_user_inatomic(data.v[1], p++);
 			ret |= __put_user_inatomic(data.v[2], p++);
 			ret |= __put_user_inatomic(data.v[3], p++);
+			/* fall through */
 		case 4:
 			ret |= __put_user_inatomic(data.v[4], p++);
 			ret |= __put_user_inatomic(data.v[5], p++);
+			/* fall through */
 		case 2:
 			ret |= __put_user_inatomic(data.v[6], p++);
 			ret |= __put_user_inatomic(data.v[7], p++);
-- 
2.9.3