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[Xen-ia64-devel] [IA64] remove a warning

from [Isaku Yamahata]

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To:	xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-ia64-devel] [IA64] remove a warning
From:	Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
Date:	Fri, 19 Jun 2009 19:01:34 +0900
Delivery-date:	Fri, 19 Jun 2009 03:01:39 -0700
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[IA64] remove a warning

This patch removes the following warning.
> unwind.c:40:1: warning: "write_trylock" redefined
> In file included from xen/include/xen/sched.h:7,
>                  from unwind.c:33:
> xen/include/xen/spinlock.h:115:1: warning: this is the location of the 
> previous definition

Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>

diff --git a/xen/arch/ia64/linux-xen/unwind.c b/xen/arch/ia64/linux-xen/unwind.c
--- a/xen/arch/ia64/linux-xen/unwind.c
+++ b/xen/arch/ia64/linux-xen/unwind.c
@@ -36,6 +36,9 @@
 #include <xen/errno.h>
 
 // work around
+// write_trylock() does bug check, but stack unwinder can be called
+// subtle situation, so skip bug check.
+#undef write_trylock(lock)
 #ifdef CONFIG_SMP
 #define write_trylock(lock)    _raw_write_trylock(lock)
 #else


-- 
yamahata

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