x86, intel, power: Correct the MSR_IA32_ENERGY_PERF_BIAS message

lenb · H. Peter Anvin · commit 17edf2d79f1e · 2011-07-15T15:13:55.000-07:00
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 Cc: <table@kernel.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
diff --git 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);
 		}
