Commit-ID:  62436a4d36c94d202784cd8a997ff8bb4b880237
Gitweb:     http://git.kernel.org/tip/62436a4d36c94d202784cd8a997ff8bb4b880237
Author:     Borislav Petkov <[email protected]>
AuthorDate: Tue, 29 Mar 2016 17:41:57 +0200
Committer:  Ingo Molnar <[email protected]>
CommitDate: Thu, 31 Mar 2016 13:35:08 +0200

x86/cpufeature: Remove cpu_has_x2apic

Signed-off-by: Borislav Petkov <[email protected]>
Acked-by: Tony Luck <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
---
 arch/ia64/include/asm/iommu.h     | 1 -
 arch/x86/include/asm/apic.h       | 4 ++--
 arch/x86/include/asm/cpufeature.h | 1 -
 arch/x86/kernel/apic/apic.c       | 2 +-
 4 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/arch/ia64/include/asm/iommu.h b/arch/ia64/include/asm/iommu.h
index 105c93b..1d12129 100644
--- a/arch/ia64/include/asm/iommu.h
+++ b/arch/ia64/include/asm/iommu.h
@@ -1,7 +1,6 @@
 #ifndef _ASM_IA64_IOMMU_H
 #define _ASM_IA64_IOMMU_H 1
 
-#define cpu_has_x2apic 0
 /* 10 seconds */
 #define DMAR_OPERATION_TIMEOUT (((cycles_t) local_cpu_data->itc_freq)*10)
 
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 98f25bb..bc27611 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -239,10 +239,10 @@ extern void __init check_x2apic(void);
 extern void x2apic_setup(void);
 static inline int x2apic_enabled(void)
 {
-       return cpu_has_x2apic && apic_is_x2apic_enabled();
+       return boot_cpu_has(X86_FEATURE_X2APIC) && apic_is_x2apic_enabled();
 }
 
-#define x2apic_supported()     (cpu_has_x2apic)
+#define x2apic_supported()     (boot_cpu_has(X86_FEATURE_X2APIC))
 #else /* !CONFIG_X86_X2APIC */
 static inline void check_x2apic(void) { }
 static inline void x2apic_setup(void) { }
diff --git a/arch/x86/include/asm/cpufeature.h 
b/arch/x86/include/asm/cpufeature.h
index 33c29aa..3da7aec 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -132,7 +132,6 @@ extern const char * const x86_bug_flags[NBUGINTS*32];
 #define cpu_has_clflush                boot_cpu_has(X86_FEATURE_CLFLUSH)
 #define cpu_has_gbpages                boot_cpu_has(X86_FEATURE_GBPAGES)
 #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)
 #define cpu_has_xsaves         boot_cpu_has(X86_FEATURE_XSAVES)
 /*
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index d356987..d7867c8 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -1561,7 +1561,7 @@ void __init check_x2apic(void)
                pr_info("x2apic: enabled by BIOS, switching to x2apic ops\n");
                x2apic_mode = 1;
                x2apic_state = X2APIC_ON;
-       } else if (!cpu_has_x2apic) {
+       } else if (!boot_cpu_has(X86_FEATURE_X2APIC)) {
                x2apic_state = X2APIC_DISABLED;
        }
 }

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