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From: Jean Delvare <khali@linux-fr.org>
To: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: linux-next: build warning after merge of the i2c tree
Date: Wed, 17 Feb 2010 09:34:46 +0100	[thread overview]
Message-ID: <20100217093446.2e610f45@hyperion.delvare> (raw)
In-Reply-To: <20100217113855.7ebf3d39.sfr@canb.auug.org.au>

On Wed, 17 Feb 2010 11:38:55 +1100, Stephen Rothwell wrote:
> Hi Jean,
> 
> After merging the i2c tree, today's linux-next build (powerpc
> ppc64_defconfig) produced warnings like this:
> 
> In file included from include/linux/bitops.h:17,
>                  from include/linux/kernel.h:15,
>                  from drivers/i2c/i2c-boardinfo.c:19:
> arch/powerpc/include/asm/bitops.h:226: warning: declaration of 'ffs' shadows a built-in function
> 
> The x86_64 allmodconfig produces similar:
> 
> In file included from include/linux/bitops.h:17,
>                  from include/linux/kernel.h:15,
>                  from next/drivers/i2c/i2c-boardinfo.c:19:
> arch/x86/include/asm/bitops.h:395: warning: declaration of 'ffs' shadows a built-in function
> 
> Exposed by commit fa4f62e9f3a85490aebe8857e2208c37da851ce3 ("i2c: Build
> core and algo drivers with -Wshadow").
> 
> Jean, I realise that these warnings are not something your tree has
> added, just that you have exposed them.  They are a bit annoying,
> though.  I am using gcc v4.4.3.

Oh well. I had the hope that at least the header files were
Wshadow-compliant so it could be enabled for selected source files. Not
getting any warning on my own system when I tried, I thought it was
fine... If it is not, then I'll just remove this patch from my tree.
Sorry for the noise and thanks for reporting.

-- 
Jean Delvare

  reply	other threads:[~2010-02-17  8:34 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-02-17  0:38 linux-next: build warning after merge of the i2c tree Stephen Rothwell
2010-02-17  8:34 ` Jean Delvare [this message]
2010-03-28 23:54 Stephen Rothwell
2010-03-29 13:21 ` Jean Delvare
2010-03-29 14:12   ` Stephen Rothwell
2014-03-06  2:50 Stephen Rothwell
2017-06-05  1:11 Stephen Rothwell
2017-06-15  1:34 ` Stephen Rothwell
2017-06-15  7:02   ` Wolfram Sang
2017-06-15  8:48     ` Stephen Rothwell
2019-06-11  0:25 Stephen Rothwell
2019-06-12  8:19 ` Wolfram Sang
2019-06-12 11:02   ` Mauro Carvalho Chehab
2019-06-12 11:09     ` Wolfram Sang
2019-06-12 11:48       ` Mauro Carvalho Chehab
2019-06-12 12:04         ` Wolfram Sang
2019-06-12 12:32           ` Mauro Carvalho Chehab
2019-06-12 13:15             ` Stephen Rothwell
2019-06-12 13:24               ` Wolfram Sang
2019-08-02  3:21 Stephen Rothwell
2019-08-02  6:04 ` Uwe Kleine-König
2021-08-18  6:29 Stephen Rothwell
2021-08-18  6:54 ` Jie Deng
2021-08-18  7:04   ` Stephen Rothwell
2021-08-18  7:13     ` Jie Deng

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