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 v2] kbuild: enforce -Werror=unused-result
Date: Fri, 19 Mar 2021 15:32:31 +0100 [thread overview]
Message-ID: <20210319143231.25500-1-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>
---
v2:
resend
Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
index a28bb374663d..9b7def6db494 100644
--- a/Makefile
+++ b/Makefile
@@ -495,7 +495,7 @@ 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:[~2021-03-19 14:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-19 14:32 Olaf Hering [this message]
2021-03-25 11:16 ` [PATCH v2] kbuild: enforce -Werror=unused-result Olaf Hering
2021-03-25 16:55 ` Masahiro Yamada
2021-03-25 17:07 ` Olaf Hering
2021-03-25 17:32 ` Masahiro Yamada
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210319143231.25500-1-olaf@aepfle.de \
--to=olaf@aepfle.de \
--cc=linux-kbuild@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=masahiroy@kernel.org \
--cc=michal.lkml@markovi.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox