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authorLen Brown <len.brown@intel.com>2011-07-15 17:37:15 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2011-08-29 13:29:07 -0700
commitf06a93fffac579694b0bb67fa81154b75b99f26e (patch)
tree59d95b319808be67549e45acb0bb1593f360f077 /arch
parentb3ff2fd377a0b593678af0082b6a2e4ecc3eec84 (diff)
x86, intel, power: Correct the MSR_IA32_ENERGY_PERF_BIAS message
commit 17edf2d79f1ea6dfdb4c444801d928953b9f98d6 upstream. Fix the printk_once() so that it actually prints (didn't print before due to a stray comma.) [ hpa: changed to an incremental patch and adjusted the description accordingly. ] Signed-off-by: Len Brown <len.brown@intel.com> Link: http://lkml.kernel.org/r/alpine.LFD.2.02.1107151732480.18606@x980 Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/cpu/intel.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index da0d779ecd9..ed6086eedf1 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -465,11 +465,11 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
u64 epb;
rdmsrl(MSR_IA32_ENERGY_PERF_BIAS, epb);
- if ((epb & 0xF) == 0) {
- printk_once(KERN_WARNING, "x86: updated energy_perf_bias"
- " to 'normal' from 'performance'\n"
- "You can view and update epb via utility,"
- " such as x86_energy_perf_policy(8)\n");
+ if ((epb & 0xF) == ENERGY_PERF_BIAS_PERFORMANCE) {
+ printk_once(KERN_WARNING "ENERGY_PERF_BIAS:"
+ " Set to 'normal', was 'performance'\n"
+ "ENERGY_PERF_BIAS: View and update with"
+ " x86_energy_perf_policy(8)\n");
epb = (epb & ~0xF) | ENERGY_PERF_BIAS_NORMAL;
wrmsrl(MSR_IA32_ENERGY_PERF_BIAS, epb);
}