From: Olaf Hering <olaf@aepfle.de>
To: linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Olaf Hering <olaf@aepfle.de>,
Masahiro Yamada <masahiroy@kernel.org>,
Michal Marek <michal.lkml@markovi.net>
Subject: [PATCH v1] kbuild: enforce -Werror=unused-result
Date: Tue, 17 Nov 2020 11:47:35 +0100 [thread overview]
Message-ID: <20201117104736.24997-1-olaf@aepfle.de> (raw)
It is a hard error if a return value is ignored.
In case the return value has no meaning, remove the attribute.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
---
Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
index e2c3f65c4721..c7f9acffad42 100644
--- a/Makefile
+++ b/Makefile
@@ -497,7 +497,7 @@ 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 \
- -Werror=return-type -Wno-format-security \
+ -Werror=return-type -Werror=unused-result -Wno-format-security \
-std=gnu89
KBUILD_CPPFLAGS := -D__KERNEL__
KBUILD_AFLAGS_KERNEL :=
next reply other threads:[~2020-11-17 10:47 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-17 10:47 Olaf Hering [this message]
2020-12-01 10:42 ` Masahiro Yamada
2020-12-21 6:31 ` Masahiro Yamada
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