When building kernel with -Wimplicit-fallthrough and -Werror, it reported the follwoing errors:
arch/powerpc/kernel/align.c: In function ‘emulate_spe’: 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...@nxp.com> --- 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