From: Chen Gang <gang.chen@asianux.com>
To: Chris Metcalf <cmetcalf@tilera.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Linux-Arch <linux-arch@vger.kernel.org>
Subject: [PATCH] arch: tile: include: asm: add cmpxchg64() definition
Date: Fri, 28 Jun 2013 09:51:35 +0800 [thread overview]
Message-ID: <51CCEC27.8050508@asianux.com> (raw)
In-Reply-To: <51CCD891.8000806@asianux.com>
Need add cmpxchg64(), or will cause compiling issue.
Just define it as cmpxchg(), 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>
---
arch/tile/include/asm/cmpxchg.h | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/tile/include/asm/cmpxchg.h b/arch/tile/include/asm/cmpxchg.h
index 276f067..7688c28 100644
--- a/arch/tile/include/asm/cmpxchg.h
+++ b/arch/tile/include/asm/cmpxchg.h
@@ -68,6 +68,8 @@ extern unsigned long __cmpxchg_called_with_bad_pointer(void);
#define tas(ptr) (xchg((ptr), 1))
+#define cmpxchg64(ptr, o, n) cmpxchg((ptr), (o), (n))
+
#endif /* __ASSEMBLY__ */
#endif /* _ASM_TILE_CMPXCHG_H */
--
1.7.7.6
next prev parent reply other threads:[~2013-06-28 1:52 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-26 4:25 [Suggestion] tile: include: asm: missing "feedback.h" file Chen Gang
2013-06-27 14:16 ` Chris Metcalf
2013-06-28 0:28 ` Chen Gang
2013-06-28 1:51 ` Chen Gang [this message]
2013-06-28 15:09 ` [PATCH] arch: tile: include: asm: add cmpxchg64() definition Ralf Baechle
2013-07-01 2:08 ` Chen Gang
2013-07-01 2:21 ` [PATCH v2] " Chen Gang
2013-07-17 16:46 ` Chris Metcalf
2013-07-18 0:02 ` Chen Gang
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