[CPUFREQ] p4-clockmod: reduce noise

On those CPUs which are SpeedStep (EST) capable, we do not care at all if
p4-clockmod does not work, since a technically superior CPU frequency
management technology is to be used.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Dave Jones <davej@redhat.com>

arch/x86/kernel/cpu/cpufreq/p4-clockmod.c

@@ -171,7 +171,9 @@ static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
 	}
 
 	if (c->x86 != 0xF) {
-		printk(KERN_WARNING PFX "Unknown p4-clockmod-capable CPU. Please send an e-mail to <cpufreq@vger.kernel.org>\n");
+		if (!cpu_has(c, X86_FEATURE_EST))
+			printk(KERN_WARNING PFX "Unknown p4-clockmod-capable CPU. "
+				"Please send an e-mail to <cpufreq@vger.kernel.org>\n");
 		return 0;
 	}