treewide: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.
[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 92cd1d8..3576123 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -213,7 +213,7 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl)
break;
default:
WARN_ONCE(1, "unknown lock status code: %d\n", status);
- /* fall through */
+ fallthrough;
case P9_LOCK_ERROR:
case P9_LOCK_GRACE:
res = -ENOLCK;