x86: fix sparse warning in xen/time.c

Use xen_khz to denote xen_specific clock speed.  Avoid shadowing
cpu_khz.

arch/x86/xen/time.c:220:6: warning: symbol 'cpu_khz' shadows an earlier one
include/asm/tsc.h:17:21: originally declared here

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
index b3721fd6877b1ea03f1d22cc12c5c1a8566ef04a..c39e1a5aa241bcce2cb2a070d2dbbe391a28ae31 100644 (file)
--- a/arch/x86/xen/time.c
+++ b/arch/x86/xen/time.c
@@ -217,17 +217,17 @@ unsigned long long xen_sched_clock(void)
 /* Get the CPU speed from Xen */
 unsigned long xen_cpu_khz(void)
 {
-       u64 cpu_khz = 1000000ULL << 32;
+       u64 xen_khz = 1000000ULL << 32;
        const struct vcpu_time_info *info =
                &HYPERVISOR_shared_info->vcpu_info[0].time;
 
-       do_div(cpu_khz, info->tsc_to_system_mul);
+       do_div(xen_khz, info->tsc_to_system_mul);
        if (info->tsc_shift < 0)
-               cpu_khz <<= -info->tsc_shift;
+               xen_khz <<= -info->tsc_shift;
        else
-               cpu_khz >>= info->tsc_shift;
+               xen_khz >>= info->tsc_shift;
 
-       return cpu_khz;
+       return xen_khz;
 }
 
 /*