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List:       oprofile-list
Subject:    Patch "x86/cpufeature: Remove cpu_has_arch_perfmon" has been added to the 4.4-stable tree
From:       <gregkh () linuxfoundation ! org>
Date:       2018-06-13 16:47:07
Message-ID: 1528908427105128 () kroah ! com
[Download RAW message or body]


This is a note to let you know that I've just added the patch titled

    x86/cpufeature: Remove cpu_has_arch_perfmon

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     x86-cpufeature-remove-cpu_has_arch_perfmon.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


From 7b5e74e637e4a977c7cf40fd7de332f60b68180e Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bp@suse.de>
Date: Tue, 29 Mar 2016 17:41:54 +0200
Subject: x86/cpufeature: Remove cpu_has_arch_perfmon

From: Borislav Petkov <bp@suse.de>

commit 7b5e74e637e4a977c7cf40fd7de332f60b68180e upstream.

Use boot_cpu_has() instead.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: oprofile-list@lists.sf.net
Link: http://lkml.kernel.org/r/1459266123-21878-2-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/x86/include/asm/cpufeature.h |    1 -
 arch/x86/oprofile/nmi_int.c       |    4 ++--
 arch/x86/oprofile/op_model_ppro.c |    2 +-
 3 files changed, 3 insertions(+), 4 deletions(-)

--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -380,7 +380,6 @@ extern const char * const x86_bug_flags[
 #define cpu_has_avx2		boot_cpu_has(X86_FEATURE_AVX2)
 #define cpu_has_clflush		boot_cpu_has(X86_FEATURE_CLFLUSH)
 #define cpu_has_gbpages		boot_cpu_has(X86_FEATURE_GBPAGES)
-#define cpu_has_arch_perfmon	boot_cpu_has(X86_FEATURE_ARCH_PERFMON)
 #define cpu_has_pat		boot_cpu_has(X86_FEATURE_PAT)
 #define cpu_has_x2apic		boot_cpu_has(X86_FEATURE_X2APIC)
 #define cpu_has_xsave		boot_cpu_has(X86_FEATURE_XSAVE)
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -635,7 +635,7 @@ static int __init ppro_init(char **cpu_t
 	__u8 cpu_model = boot_cpu_data.x86_model;
 	struct op_x86_model_spec *spec = &op_ppro_spec;	/* default */
 
-	if (force_cpu_type == arch_perfmon && cpu_has_arch_perfmon)
+	if (force_cpu_type == arch_perfmon && boot_cpu_has(X86_FEATURE_ARCH_PERFMON))
 		return 0;
 
 	/*
@@ -760,7 +760,7 @@ int __init op_nmi_init(struct oprofile_o
 		if (cpu_type)
 			break;
 
-		if (!cpu_has_arch_perfmon)
+		if (!boot_cpu_has(X86_FEATURE_ARCH_PERFMON))
 			return -ENODEV;
 
 		/* use arch perfmon as fallback */
--- a/arch/x86/oprofile/op_model_ppro.c
+++ b/arch/x86/oprofile/op_model_ppro.c
@@ -75,7 +75,7 @@ static void ppro_setup_ctrs(struct op_x8
 	u64 val;
 	int i;
 
-	if (cpu_has_arch_perfmon) {
+	if (boot_cpu_has(X86_FEATURE_ARCH_PERFMON)) {
 		union cpuid10_eax eax;
 		eax.full = cpuid_eax(0xa);
 


Patches currently in stable-queue which might be from bp@suse.de are

queue-4.4/x86-fpu-disable-mpx-when-eagerfpu-is-off.patch
queue-4.4/x86-fpu-disable-avx-when-eagerfpu-is-off.patch
queue-4.4/x86-cpufeature-remove-cpu_has_xmm2.patch
queue-4.4/x86-cpufeature-remove-unused-and-seldomly-used-cpu_has_xx-macros.patch
queue-4.4/x86-cpufeature-replace-cpu_has_avx2-with-boot_cpu_has-usage.patch
queue-4.4/x86-cpufeature-replace-cpu_has_aes-with-boot_cpu_has-usage.patch
queue-4.4/x86-fpu-fix-eager-fpu-handling-on-legacy-fpu-machines.patch
queue-4.4/x86-cpufeature-remove-cpu_has_pse.patch
queue-4.4/x86-cpufeature-remove-cpu_has_osxsave.patch
queue-4.4/x86-mm-pat-x86-cpufeature-remove-cpu_has_pat.patch
queue-4.4/x86-fpu-revert-x86-fpu-disable-avx-when-eagerfpu-is-off.patch
queue-4.4/x86-cpufeature-remove-cpu_has_gbpages.patch
queue-4.4/x86-fpu-fix-early-fpu-command-line-parsing.patch
queue-4.4/x86-cpufeature-remove-cpu_has_x2apic.patch
queue-4.4/x86-cpufeature-remove-cpu_has_clflush.patch
queue-4.4/x86-cpufeature-remove-cpu_has_arch_perfmon.patch

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