Commit ba826833 authored Jun 17, 2016 by Len Brown Committed by Ingo Molnar Jul 10, 2016

x86/tsc_msr: Identify Intel-specific code



try_msr_calibrate_tsc() is currently Intel-specific,
and should not execute on any other vendor's parts.

Signed-off-by: Len Brown <len.brown@intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1fe23c052826bdcfeb3d45045aa02246078cb5a7.1466138954.git.len.brown@intel.com


Signed-off-by: Ingo Molnar <mingo@kernel.org>

parent fc5f3ac2

arch/x86/kernel/tsc_msr.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -86,6 +86,9 @@ unsigned long try_msr_calibrate_tsc(void)
		unsigned long res;
		int cpu_index;

		if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL)
		return 0;

		cpu_index = match_cpu(boot_cpu_data.x86, boot_cpu_data.x86_model);
		if (cpu_index < 0)
		return 0;