The patch titled Subject: lib/assoc_array.c: mark expected switch fall-through has been added to the -mm tree. Its filename is assoc_array-mark-expected-switch-fall-through.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/assoc_array-mark-expected-switch-fall-through.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/assoc_array-mark-expected-switch-fall-through.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: "Gustavo A. R. Silva" <gustavo@xxxxxxxxxxxxxx> Subject: lib/assoc_array.c: mark expected switch fall-through In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. This patch fixes the following warning: lib/assoc_array.c: In function `assoc_array_delete': lib/assoc_array.c:1110:3: warning: this statement may fall through [-Wimplicit-fallthrough=] for (slot = 0; slot < ASSOC_ARRAY_FAN_OUT; slot++) { ^~~ lib/assoc_array.c:1118:2: note: here case assoc_array_walk_tree_empty: ^~~~ Warning level 3 was used: -Wimplicit-fallthrough=3 This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough. Link: http://lkml.kernel.org/r/20190212212206.GA16378@embeddedor Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx> Cc: Kees Cook <keescook@xxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- lib/assoc_array.c | 1 + 1 file changed, 1 insertion(+) --- a/lib/assoc_array.c~assoc_array-mark-expected-switch-fall-through +++ a/lib/assoc_array.c @@ -1115,6 +1115,7 @@ struct assoc_array_edit *assoc_array_del index_key)) goto found_leaf; } + /* fall through */ case assoc_array_walk_tree_empty: case assoc_array_walk_found_wrong_shortcut: default: _ Patches currently in -mm which might be from gustavo@xxxxxxxxxxxxxx are ocfs2-use-zero-sized-array-and-struct_size-in-kzalloc.patch mm-memcontrol-use-struct_size-in-kmalloc.patch assoc_array-mark-expected-switch-fall-through.patch gcov-use-struct_size-in-kzalloc.patch ipc-semc-replace-kvmalloc-memset-with-kvzalloc-and-use-struct_size.patch