Commit db10db48 authored Jul 20, 2010 by Robert Richter Committed by H. Peter Anvin Jul 20, 2010

x86, xsave: 32/64 bit boot cpu check unification in initialization



Boot cpu id is always 0, thus simplifying and unifying boot cpu check.

boot_cpu_id is there for historical reasons and was renamed to
boot_cpu_physical_apicid in patch:

 c70dcb74 x86: change boot_cpu_id to boot_cpu_physical_apicid

However, there are some remaining occurrences of boot_cpu_id that are
never touched in the kernel and thus its value is always 0.

Signed-off-by: Robert Richter <robert.richter@amd.com>
LKML-Reference: <1279651857-24639-3-git-send-email-robert.richter@amd.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

parent 7aa2b5f8

arch/x86/kernel/cpu/common.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1273,7 +1273,7 @@ void __cpuinit cpu_init(void)
		/*
		* Boot processor to setup the FP and extended state context info.
		*/
		if (smp_processor_id() == boot_cpu_id)
		if (!smp_processor_id())
		init_thread_xstate();

		xsave_init();