Fwd: [PATCH] cpufreq: honor cpu_sibling_map in speedstep-centrino.c

[Alexey Dobriyan <adobriyan@gmail.com>]

To: kernel-janitors@lists.osdl.org

speedstep-centrino.c should honor cpu_sibling_map for the sake of
recent Intel processors, which support both Centrino-style Enhanced
SpeedStep and hyperthreading; even newer dual-core chips may need the
same fix.

--- linux-source-2.6.13.2/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c~	2005-08-28 19:41:01.000000000 -0400
+++ linux-source-2.6.13.2/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c	2005-09-28 17:23:37.000000000 -0400
@@ -498,6 +498,10 @@
 	if (cpu->x86_vendor != X86_VENDOR_INTEL || !cpu_has(cpu, X86_FEATURE_EST))
 		return -ENODEV;
 
+#ifdef CONFIG_SMP
+	policy->cpus = cpu_sibling_map[policy->cpu];
+#endif
+
 	for (i = 0; i < N_IDS; i++)
 		if (centrino_verify_cpu_id(cpu, &cpu_ids[i]))
 			break;


-
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