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authorH. Peter Anvin <hpa@zytor.com>2009-08-26 00:06:03 -0400
committerH. Peter Anvin <hpa@zytor.com>2009-08-26 00:10:32 -0400
commit7adb4df410966dfe43e4815256e3215110648fb8 (patch)
tree60862ffa783ce6bbde23b5ad556b162d0bfa2eb6 /arch
parentd560bc61575efae43595cbcb56d0ba3b9450139c (diff)
x86, xen: Initialize cx to suppress warning
Initialize cx before calling xen_cpuid(), in order to suppress the "may be used uninitialized in this function" warning. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/xen/enlighten.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 0b755cd7686d..eb33aaa8415d 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -215,6 +215,7 @@ static __init void xen_init_cpuid_mask(void)
215 (1 << X86_FEATURE_ACPI)); /* disable ACPI */ 215 (1 << X86_FEATURE_ACPI)); /* disable ACPI */
216 216
217 ax = 1; 217 ax = 1;
218 cx = 0;
218 xen_cpuid(&ax, &bx, &cx, &dx); 219 xen_cpuid(&ax, &bx, &cx, &dx);
219 220
220 /* cpuid claims we support xsave; try enabling it to see what happens */ 221 /* cpuid claims we support xsave; try enabling it to see what happens */