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| author | Stephen Rothwell <sfr@canb.auug.org.au> | 2019-05-15 15:23:52 +1000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-15 08:16:14 -0700 |
| commit | 89963adcdb430e047f4c03ac3ed6ce9aa42a595c (patch) | |
| tree | e14a1da3e87b2d538dfbb3f97afe60af46dbe395 /kernel/compat.c | |
| parent | 5ac94332248ee017964ba368cdda4ce647e3aba7 (diff) | |
| download | lwn-89963adcdb430e047f4c03ac3ed6ce9aa42a595c.tar.gz lwn-89963adcdb430e047f4c03ac3ed6ce9aa42a595c.zip | |
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>
Diffstat (limited to 'kernel/compat.c')
| -rw-r--r-- | kernel/compat.c | 3 |
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 |