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From: Masahiro Yamada <masahiroy@kernel.org>
To: Arnd Bergmann <arnd@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>,
	Nathan Chancellor <nathan@kernel.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Nicolas Schier <nicolas@fjasle.eu>,
	Guenter Roeck <linux@roeck-us.net>, Lee Jones <lee@kernel.org>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	linux-kbuild@vger.kernel.org, linux-arch@vger.kernel.org
Subject: Re: [PATCH 6/9] extrawarn: move -Wrestrict into W=1 warnings
Date: Sun, 20 Aug 2023 10:45:05 +0900	[thread overview]
Message-ID: <CAK7LNAToUuWO2-Z=2A+Ubc8iwxRg8VVWFoEpDtHrtDXcSVzg1Q@mail.gmail.com> (raw)
In-Reply-To: <20230811140327.3754597-7-arnd@kernel.org>

On Sat, Aug 12, 2023 at 4:40 PM Arnd Bergmann <arnd@kernel.org> wrote:
>
> From: Arnd Bergmann <arnd@arndb.de>
>
> There are few of these, so enable them whenever W=1 is enabled.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  scripts/Makefile.extrawarn | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
> index ec528972371fa..8abe90270b335 100644
> --- a/scripts/Makefile.extrawarn
> +++ b/scripts/Makefile.extrawarn
> @@ -54,9 +54,6 @@ KBUILD_CFLAGS += -Wno-pointer-sign
>  # globally built with -Wcast-function-type.
>  KBUILD_CFLAGS += $(call cc-option, -Wcast-function-type)
>
> -# Another good warning that we'll want to enable eventually
> -KBUILD_CFLAGS += $(call cc-disable-warning, restrict)
> -
>  # The allocators already balk at large sizes, so silence the compiler
>  # warnings for bounds checks involving those possible values. While
>  # -Wno-alloc-size-larger-than would normally be used here, earlier versions
> @@ -99,6 +96,7 @@ ifneq ($(findstring 1, $(KBUILD_EXTRA_WARN)),)
>
>  KBUILD_CFLAGS += -Wextra -Wunused -Wno-unused-parameter
>  KBUILD_CFLAGS += -Wmissing-declarations
> +KBUILD_CFLAGS += $(call cc-option, -Wrestrict)
>  KBUILD_CFLAGS += -Wmissing-format-attribute
>  KBUILD_CFLAGS += -Wmissing-prototypes
>  KBUILD_CFLAGS += -Wold-style-definition
> @@ -120,6 +118,7 @@ else
>  # Suppress them by using -Wno... except for W=1.
>  KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
>  KBUILD_CFLAGS += $(call cc-disable-warning, unused-const-variable)
> +KBUILD_CFLAGS += $(call cc-disable-warning, restrict)
>  KBUILD_CFLAGS += $(call cc-disable-warning, packed-not-aligned)
>  KBUILD_CFLAGS += $(call cc-disable-warning, format-overflow)
>  KBUILD_CFLAGS += $(call cc-disable-warning, format-truncation)
> --
> 2.39.2
>

Applied  to linux-kbuild. Thanks.
-- 
Best Regards
Masahiro Yamada

  parent reply	other threads:[~2023-08-20  2:37 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-11 14:03 [PATCH 0/9] Kbuild: warning options cleanup and more warnings Arnd Bergmann
2023-08-11 14:03 ` [PATCH 1/9] Kbuild: only pass -fno-inline-functions-called-once for gcc Arnd Bergmann
2023-08-11 14:14   ` Nathan Chancellor
2023-08-11 14:23     ` Arnd Bergmann
2023-08-11 14:03 ` [PATCH 2/9] Kbuild: consolidate warning flags in scripts/Makefile.extrawarn Arnd Bergmann
2023-08-11 14:19   ` Nathan Chancellor
2023-08-11 14:26     ` Arnd Bergmann
2023-08-12  7:21       ` Masahiro Yamada
2023-08-20  1:36       ` Masahiro Yamada
2023-08-11 14:03 ` [PATCH 3/9] Kbuild: avoid duplicate warning options Arnd Bergmann
2023-08-12  9:21   ` Masahiro Yamada
2023-08-12  9:28     ` Arnd Bergmann
2023-08-20  1:38       ` Masahiro Yamada
2023-08-11 14:03 ` [PATCH 4/9] extrawarn: don't turn off -Wshift-negative-value for gcc-9 Arnd Bergmann
2023-08-12 12:04   ` Masahiro Yamada
2023-08-11 14:03 ` [PATCH 5/9] extrawarn: enable format and stringop overflow warnings in W=1 Arnd Bergmann
2023-08-12 13:10   ` Masahiro Yamada
2023-08-20  1:40     ` Masahiro Yamada
2023-08-21 18:26     ` Nick Desaulniers
2023-08-11 14:03 ` [PATCH 6/9] extrawarn: move -Wrestrict into W=1 warnings Arnd Bergmann
2023-08-12 13:20   ` Masahiro Yamada
2023-08-20  1:45   ` Masahiro Yamada [this message]
2023-08-11 14:03 ` [PATCH 7/9] extrawarn: do not disable -Wmain at W=1 level Arnd Bergmann
2023-08-11 14:03 ` [PATCH 8/9] extrawarn: enable more warnings in W=2 Arnd Bergmann
2023-08-11 14:03 ` [PATCH 9/9] [RFC] extrawarn: enable more W=1 warnings by default Arnd Bergmann
2023-08-11 16:09   ` Nathan Chancellor
2023-08-11 18:23     ` Arnd Bergmann
2023-08-14 19:52       ` Nathan Chancellor

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