From: Randy Dunlap <rdunlap@infradead.org>
To: linux-kernel@vger.kernel.org
Cc: Randy Dunlap <rdunlap@infradead.org>,
Steven Rostedt <rostedt@goodmis.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Daniel Bristot de Oliveira <bristot@kernel.org>,
Masahiro Yamada <masahiroy@kernel.org>,
Michal Marek <michal.lkml@markovi.net>,
linux-kbuild@vger.kernel.org
Subject: [PATCH] Makefile: use -Wno-main in the full kernel tree
Date: Fri, 13 Aug 2021 15:41:31 -0700 [thread overview]
Message-ID: <20210813224131.25803-1-rdunlap@infradead.org> (raw)
When using gcc (SUSE Linux) 7.5.0 (on openSUSE 15.3), I see a
build warning:
../kernel/trace/trace_osnoise.c: In function 'start_kthread':
../kernel/trace/trace_osnoise.c:1461:8: warning: 'main' is usually a function [-Wmain]
void *main = osnoise_main;
^~~~
Quieten that warning by using "-Wno-main". It's OK to use "main" as a
declaration name in the kernel.
Build-tested on most ARCHes.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Daniel Bristot de Oliveira <bristot@kernel.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: linux-kbuild@vger.kernel.org
---
Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- linux-next-20210812.orig/Makefile
+++ linux-next-20210812/Makefile
@@ -522,7 +522,7 @@ KBUILD_AFLAGS := -D__ASSEMBLY__ -fno-P
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 -Wno-format-security -Wno-main \
-std=gnu89
KBUILD_CPPFLAGS := -D__KERNEL__
KBUILD_RUST_TARGET := $(srctree)/arch/$(SRCARCH)/rust/target.json
next reply other threads:[~2021-08-13 22:41 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-13 22:41 Randy Dunlap [this message]
2021-08-14 0:01 ` [PATCH] Makefile: use -Wno-main in the full kernel tree Linus Torvalds
2021-08-14 0:29 ` Randy Dunlap
2021-08-17 0:33 ` Linus Torvalds
2021-08-17 0:38 ` Linus Torvalds
2021-08-17 1:01 ` Randy Dunlap
2021-08-17 1:31 ` Linus Torvalds
2021-08-17 2:05 ` Steven Rostedt
2021-08-21 23:26 ` Randy Dunlap
2021-09-07 22:42 ` Randy Dunlap
2021-08-16 15:08 ` Steven Rostedt
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