Commit d63dcf49 authored Mar 23, 2016 by Toshi Kani Committed by Ingo Molnar Mar 29, 2016

x86/mm/pat: Replace cpu_has_pat with boot_cpu_has()



Borislav Petkov suggested:

 > Please use on init paths boot_cpu_has(X86_FEATURE_PAT) and on fast
 > paths static_cpu_has(X86_FEATURE_PAT). No more of that cpu_has_XXX
 > ugliness.

Replace the use of cpu_has_pat on init paths with boot_cpu_has().

Suggested-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Luis R. Rodriguez <mcgrof@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Robert Elliott <elliott@hpe.com>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: konrad.wilk@oracle.com
Cc: paul.gortmaker@windriver.com
Cc: xen-devel@lists.xenproject.org
Link: http://lkml.kernel.org/r/1458769323-24491-4-git-send-email-toshi.kani@hpe.com


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

parent 224bb1e5

arch/x86/mm/pat.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -213,7 +213,7 @@ static void pat_bsp_init(u64 pat)
		{
		u64 tmp_pat;

		if (!cpu_has_pat) {
		if (!boot_cpu_has(X86_FEATURE_PAT)) {
		pat_disable("PAT not supported by CPU.");
		return;
		}
		@@ -231,7 +231,7 @@ static void pat_bsp_init(u64 pat)

		static void pat_ap_init(u64 pat)
		{
		if (!cpu_has_pat) {
		if (!boot_cpu_has(X86_FEATURE_PAT)) {
		/*
		* If this happens we are on a secondary CPU, but switched to
		* PAT on the boot CPU. We have no way to undo PAT.

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