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: v4.19.169~1
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=47b5fc25044c81190203fe73d84068bffa0dd73a;p=users%2Fdwmw2%2Flinux.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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/Makefile b/Makefile
index 3e44a813604eb..17ee114eb52d0 100644
--- a/Makefile
+++ b/Makefile
@@ -438,7 +438,7 @@ KBUILD_AFLAGS   := -D__ASSEMBLY__
 KBUILD_CFLAGS   := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
 		   -fno-strict-aliasing -fno-common -fshort-wchar \
 		   -Werror-implicit-function-declaration \
-		   -Wno-format-security \
+		   -Werror=return-type -Wno-format-security \
 		   -std=gnu89
 KBUILD_CPPFLAGS := -D__KERNEL__
 KBUILD_AFLAGS_KERNEL :=