include/linux/compat.h: mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Gustavo A. R. Silva <[email protected]> Acked-by: Kees Cook <[email protected]> Cc: Michael Ellerman <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
zarubaf · Oct 31, 2018 · 8997600 · 8997600
1 parent 048e513
commit 8997600
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/include/linux/compat.h b/include/linux/compat.h
@@ -488,8 +488,11 @@ put_compat_sigset(compat_sigset_t __user *compat, const sigset_t *set,
 	compat_sigset_t v;
 	switch (_NSIG_WORDS) {
 	case 4: v.sig[7] = (set->sig[3] >> 32); v.sig[6] = set->sig[3];
+		/* fall through */
 	case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2];
+		/* fall through */
 	case 2: v.sig[3] = (set->sig[1] >> 32); v.sig[2] = set->sig[1];
+		/* fall through */
 	case 1: v.sig[1] = (set->sig[0] >> 32); v.sig[0] = set->sig[0];
 	}
 	return copy_to_user(compat, &v, size) ? -EFAULT : 0;