From: Jiri Slaby <jirislaby@gmail.com>
To: jeremy@xensource.com
Cc: chrisw@sous-sol.org, virtualization@lists.osdl.org,
xen-devel@lists.xensource.com, linux-kernel@vger.kernel.org,
Jiri Slaby <jirislaby@gmail.com>
Subject: [PATCH 1/1] XEN: enlighten, use uninitialized_var(cx)
Date: Tue, 25 Aug 2009 23:00:44 +0200 [thread overview]
Message-ID: <1251234044-6943-1-git-send-email-jirislaby@gmail.com> (raw)
To avoid a wrong compiler warning, use unitialized_var(cx) in
xen_init_cpuid_mask.
cx needn't be initialized for cpuid when ax is 1.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Chris Wright <chrisw@sous-sol.org>
---
arch/x86/xen/enlighten.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index e90540a..5ab75e2 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -202,7 +202,7 @@ static void xen_cpuid(unsigned int *ax, unsigned int *bx,
static __init void xen_init_cpuid_mask(void)
{
- unsigned int ax, bx, cx, dx;
+ unsigned int ax, bx, uninitialized_var(cx), dx;
cpuid_leaf1_edx_mask =
~((1 << X86_FEATURE_MCE) | /* disable MCE */
--
1.6.3.3
next reply other threads:[~2009-08-25 21:00 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-25 21:00 Jiri Slaby [this message]
2009-08-25 22:29 ` [PATCH 1/1] XEN: enlighten, use uninitialized_var(cx) Jeremy Fitzhardinge
2009-08-26 6:09 ` Ingo Molnar
2009-08-26 17:27 ` H. Peter Anvin
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