From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chris Metcalf <cmetcalf@tilera.com>
Subject: Re: [PATCH v2] arch: tile: include: asm: add cmpxchg64() definition
Date: Wed, 17 Jul 2013 12:46:19 -0400
Message-ID: <51E6CA5B.6030501@tilera.com>
References: <51CA6D21.3090901@asianux.com> <51CC492C.1040105@tilera.com> <51CCD891.8000806@asianux.com> <51CCEC27.8050508@asianux.com> <20130628150941.GA22767@linux-mips.org> <51D0E4B3.6080402@asianux.com> <51D0E7BF.9030206@asianux.com>
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To: Chen Gang <gang.chen@asianux.com>
Cc: Ralf Baechle <ralf@linux-mips.org>, =?UTF-8?B?SsO2cm4gRW5nZWw=?= <joern@logfs.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, Linux-Arch <linux-arch@vger.kernel.org>, Paul Gortmaker <paul.gortmaker@windriver.com>
List-Id: linux-arch.vger.kernel.org

On 6/30/2013 10:21 PM, Chen Gang wrote:
> Need add cmpxchg64(), or will cause compiling issue.
>
> Need define it as cmpxchg() only for 64-bit operation, since cmpxchg(=
)
> can support 8 bytes.
>
> The related error (with allmodconfig):
>
>   drivers/block/blockconsole.c: In function =E2=80=98bcon_advance_con=
sole_bytes=E2=80=99:
>   drivers/block/blockconsole.c:164:2: error: implicit declaration of =
function =E2=80=98cmpxchg64=E2=80=99 [-Werror=3Dimplicit-function-decla=
ration]
>
> Signed-off-by: Chen Gang <gang.chen@asianux.com>

Thanks, taken into the tile tree.

--=20
Chris Metcalf, Tilera Corp.
http://www.tilera.com