From: Chen Gang <gang.chen@asianux.com>
Date: Mon, 1 Jul 2013 02:21:51 +0000 (+0800)
Subject: arch: tile: include: asm: add cmpxchg64() definition
X-Git-Tag: v3.12-rc1~120^2~84
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cf3a13d790f9760c4bfcae802aaba80efb3519af;p=pandora-kernel.git

arch: tile: include: asm: add cmpxchg64() definition

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 ‘bcon_advance_console_bytes’:
  drivers/block/blockconsole.c:164:2: error: implicit declaration of function ‘cmpxchg64’ [-Werror=implicit-function-declaration]

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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