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authorStephen Rothwell <sfr@canb.auug.org.au>2019-05-15 15:23:52 +1000
committerLinus Torvalds <torvalds@linux-foundation.org>2019-05-15 08:16:14 -0700
commit89963adcdb430e047f4c03ac3ed6ce9aa42a595c (patch)
treee14a1da3e87b2d538dfbb3f97afe60af46dbe395
parent5ac94332248ee017964ba368cdda4ce647e3aba7 (diff)
download96b-common-89963adcdb430e047f4c03ac3ed6ce9aa42a595c.tar.gz
kernel/compat.c: mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. This patch aims to suppress 3 missing-break-in-switch false positives on some architectures. Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Deepa Dinamani <deepa.kernel@gmail.com> Cc: Gustavo A. R. Silva <gustavo@embeddedor.com> Cc: Kees Cook <keescook@chromium.org> Cc: Jann Horn <jannh@google.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--kernel/compat.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/compat.c b/kernel/compat.c
index d8a36c6ad7c9..b5f7063c0db6 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -346,8 +346,11 @@ get_compat_sigset(sigset_t *set, const compat_sigset_t __user *compat)
return -EFAULT;
switch (_NSIG_WORDS) {
case 4: set->sig[3] = v.sig[6] | (((long)v.sig[7]) << 32 );
+ /* fall through */
case 3: set->sig[2] = v.sig[4] | (((long)v.sig[5]) << 32 );
+ /* fall through */
case 2: set->sig[1] = v.sig[2] | (((long)v.sig[3]) << 32 );
+ /* fall through */
case 1: set->sig[0] = v.sig[0] | (((long)v.sig[1]) << 32 );
}
#else