From: Kees Cook <keescook@chromium.org>
Date: Tue, 17 Aug 2021 18:56:36 +0000 (-0700)
Subject: Makefile: Enable -Wzero-length-bounds
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=da65e02648bea617f0608da31e3be3228315f771;p=users%2Fjedix%2Flinux-maple.git

Makefile: Enable -Wzero-length-bounds

With all known internal zero-length accesses fixed, it is possible to
enable -Wzero-length-bounds globally. Since this is included by default
in -Warray-bounds, we just need to stop disabling it.

Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: linux-kbuild@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
---

diff --git a/Makefile b/Makefile
index 8e7e73a642e26..8e732e875e785 100644
--- a/Makefile
+++ b/Makefile
@@ -994,7 +994,6 @@ KBUILD_CFLAGS += -Wno-pointer-sign
 KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation)
 
 # We'll want to enable this eventually, but it's not going away for 5.7 at least
-KBUILD_CFLAGS += $(call cc-disable-warning, zero-length-bounds)
 KBUILD_CFLAGS += $(call cc-disable-warning, stringop-overflow)
 
 # Another good warning that we'll want to enable eventually