Linux-Crypto Archive on lore.kernel.org
 help / color / Atom feed
From: Masahiro Yamada <masahiroy@kernel.org>
To: Joe Perches <joe@perches.com>
Cc: Michal Marek <michal.lkml@markovi.net>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	Linux Crypto Mailing List <linux-crypto@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	linux-kbuild <linux-kbuild@vger.kernel.org>,
	Corentin Labbe <clabbe@baylibre.com>,
	"David S. Miller" <davem@davemloft.net>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>
Subject: Re: [PATCH] Makefile.extrawarn: Move sign-compare from W=2 to W=3
Date: Mon, 27 Jul 2020 13:55:25 +0900
Message-ID: <CAK7LNATohp=6BySQfn9g5xERm4u2rBG9VaoiGJ33TWovNTZd8w@mail.gmail.com> (raw)
In-Reply-To: <b545eb4e3f2b4b676959e4666ef536f2691041eb.camel@perches.com>

On Wed, Jul 22, 2020 at 1:57 PM Joe Perches <joe@perches.com> wrote:
>
> This -Wsign-compare compiler warning can be very noisy
> and most of the suggested conversions are unnecessary.
>
> Make the warning W=3 so it's described under the
> "can most likely be ignored" block.
>
> Signed-off-by: Joe Perches <joe@perches.com>
> ---

Applied to linux-kbuild. Thanks.



> On Tue, 2020-07-21 at 14:32 -0700, Joe Perches wrote:
> > On Tue, 2020-07-21 at 19:06 +0000, Corentin Labbe wrote:
> > > This patch fixes the warning:
> > > warning: comparison of integer expressions of different signedness: 'int' and 'long unsigned int' [-Wsign-compare]
> >
> > I think these do not really need conversion.
> > Are these useful compiler warnings ?
>
> Perhaps move the warning from W=2 to W=3 so
> it's described as "can most likely be ignored"
>
>  scripts/Makefile.extrawarn | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
> index 62c275685b75..95e4cdb94fe9 100644
> --- a/scripts/Makefile.extrawarn
> +++ b/scripts/Makefile.extrawarn
> @@ -66,7 +66,6 @@ KBUILD_CFLAGS += -Wnested-externs
>  KBUILD_CFLAGS += -Wshadow
>  KBUILD_CFLAGS += $(call cc-option, -Wlogical-op)
>  KBUILD_CFLAGS += -Wmissing-field-initializers
> -KBUILD_CFLAGS += -Wsign-compare
>  KBUILD_CFLAGS += -Wtype-limits
>  KBUILD_CFLAGS += $(call cc-option, -Wmaybe-uninitialized)
>  KBUILD_CFLAGS += $(call cc-option, -Wunused-macros)
> @@ -87,6 +86,7 @@ KBUILD_CFLAGS += -Wpacked
>  KBUILD_CFLAGS += -Wpadded
>  KBUILD_CFLAGS += -Wpointer-arith
>  KBUILD_CFLAGS += -Wredundant-decls
> +KBUILD_CFLAGS += -Wsign-compare
>  KBUILD_CFLAGS += -Wswitch-default
>  KBUILD_CFLAGS += $(call cc-option, -Wpacked-bitfield-compat)
>
>
>


--
Best Regards
Masahiro Yamada

  reply index

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-21 19:06 [PATCH v4 00/17] crypto: allwinner: add xRNG and hashes Corentin Labbe
2020-07-21 19:06 ` [PATCH v4 01/17] crypto: sun8i-ss: Add SS_START define Corentin Labbe
2020-07-21 19:06 ` [PATCH v4 02/17] crypto: sun8i-ss: Add support for the PRNG Corentin Labbe
2020-07-21 19:06 ` [PATCH v4 03/17] crypto: sun8i-ss: support hash algorithms Corentin Labbe
2020-07-21 19:06 ` [PATCH v4 04/17] crypto: sun8i-ss: fix a trivial typo Corentin Labbe
2020-07-21 19:06 ` [PATCH v4 05/17] crypto: sun8i-ss: Add more comment on some structures Corentin Labbe
2020-07-21 19:06 ` [PATCH v4 06/17] crypto: sun8i-ss: better debug printing Corentin Labbe
2020-07-21 19:06 ` [PATCH v4 07/17] crypto: sun8i-ce: handle endianness of t_common_ctl Corentin Labbe
2020-07-21 19:06 ` [PATCH v4 08/17] crypto: sun8i-ce: move iv data to request context Corentin Labbe
2020-07-31  8:24   ` Herbert Xu
2020-08-21  7:35     ` LABBE Corentin
2020-08-21  7:36       ` Herbert Xu
2020-07-21 19:06 ` [PATCH v4 09/17] crypto: sun8i-ce: split into prepare/run/unprepare Corentin Labbe
2020-07-21 19:06 ` [PATCH v4 10/17] crypto: sun8i-ce: handle different error registers Corentin Labbe
2020-07-21 19:06 ` [PATCH v4 11/17] crypto: sun8i-ce: rename has_t_dlen_in_bytes to cipher_t_dlen_in_bytes Corentin Labbe
2020-07-21 19:06 ` [PATCH v4 12/17] crypto: sun8i-ce: support hash algorithms Corentin Labbe
2020-07-21 19:06 ` [PATCH v4 13/17] crypto: sun8i-ce: Add stat_bytes debugfs Corentin Labbe
2020-07-21 19:06 ` [PATCH v4 14/17] crypto: sun8i-ce: Add support for the PRNG Corentin Labbe
2020-07-21 19:06 ` [PATCH v4 15/17] crypto: sun8i-ce: Add support for the TRNG Corentin Labbe
2020-07-21 19:06 ` [PATCH v4 16/17] crypto: sun8i-ce: fix comparison of integer expressions of different signedness Corentin Labbe
2020-07-21 21:32   ` Joe Perches
2020-07-22  4:57     ` [PATCH] Makefile.extrawarn: Move sign-compare from W=2 to W=3 Joe Perches
2020-07-27  4:55       ` Masahiro Yamada [this message]
2020-07-22  6:21     ` [PATCH v4 16/17] crypto: sun8i-ce: fix comparison of integer expressions of different signedness LABBE Corentin
2020-07-21 19:06 ` [PATCH v4 17/17] crypto: sun8i-ss: " Corentin Labbe

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='CAK7LNATohp=6BySQfn9g5xERm4u2rBG9VaoiGJ33TWovNTZd8w@mail.gmail.com' \
    --to=masahiroy@kernel.org \
    --cc=clabbe@baylibre.com \
    --cc=davem@davemloft.net \
    --cc=herbert@gondor.apana.org.au \
    --cc=joe@perches.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-crypto@vger.kernel.org \
    --cc=linux-kbuild@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=michal.lkml@markovi.net \
    --cc=mripard@kernel.org \
    --cc=wens@csie.org \
    /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

Linux-Crypto Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-crypto/0 linux-crypto/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-crypto linux-crypto/ https://lore.kernel.org/linux-crypto \
		linux-crypto@vger.kernel.org
	public-inbox-index linux-crypto

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-crypto


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git