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>
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@ -346,8 +346,11 @@ get_compat_sigset(sigset_t *set, const compat_sigset_t __user *compat)
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return -EFAULT;
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switch (_NSIG_WORDS) {
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case 4: set->sig[3] = v.sig[6] | (((long)v.sig[7]) << 32 );
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/* fall through */
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case 3: set->sig[2] = v.sig[4] | (((long)v.sig[5]) << 32 );
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/* fall through */
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case 2: set->sig[1] = v.sig[2] | (((long)v.sig[3]) << 32 );
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/* fall through */
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case 1: set->sig[0] = v.sig[0] | (((long)v.sig[1]) << 32 );
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}
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#else
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