From: Olaf Hering <olaf@aepfle.de>
Date: Sun, 11 Oct 2020 18:54:31 +0000 (+0200)
Subject: kbuild: enforce -Werror=return-type
X-Git-Tag: v5.4.91~75
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bb562e6e0358fe0ecf6853f28dab615e90389f9a;p=thirdparty%2Fkernel%2Fstable.git

kbuild: enforce -Werror=return-type

commit 172aad81a882443eefe1bd860c4eddc81b14dd5b upstream.

Catch errors which at least gcc tolerates by default:
 warning: 'return' with no value, in function returning non-void [-Wreturn-type]

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/Makefile b/Makefile
index 5c9d680b7ce51..d87ef7a839072 100644
--- a/Makefile
+++ b/Makefile
@@ -480,7 +480,7 @@ KBUILD_AFLAGS   := -D__ASSEMBLY__ -fno-PIE
 KBUILD_CFLAGS   := -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs \
 		   -fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE \
 		   -Werror=implicit-function-declaration -Werror=implicit-int \
-		   -Wno-format-security \
+		   -Werror=return-type -Wno-format-security \
 		   -std=gnu89
 KBUILD_CPPFLAGS := -D__KERNEL__
 KBUILD_AFLAGS_KERNEL :=