From 5f1dd4dda5c8796c405e856aaa11e187f6885924 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Tue, 18 Aug 2020 12:28:31 +0200 Subject: x86/fsgsbase: Replace static_cpu_has() with boot_cpu_has() ptrace and prctl() are not really fast paths to warrant the use of static_cpu_has() and cause alternatives patching for no good reason. Replace with boot_cpu_has() which is simple and fast enough. No functional changes. Signed-off-by: Borislav Petkov Link: https://lkml.kernel.org/r/20200818103715.32736-1-bp@alien8.de --- arch/x86/include/asm/fsgsbase.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/x86/include/asm/fsgsbase.h') diff --git a/arch/x86/include/asm/fsgsbase.h b/arch/x86/include/asm/fsgsbase.h index d552646411a9..35cff5f2becf 100644 --- a/arch/x86/include/asm/fsgsbase.h +++ b/arch/x86/include/asm/fsgsbase.h @@ -57,7 +57,7 @@ static inline unsigned long x86_fsbase_read_cpu(void) { unsigned long fsbase; - if (static_cpu_has(X86_FEATURE_FSGSBASE)) + if (boot_cpu_has(X86_FEATURE_FSGSBASE)) fsbase = rdfsbase(); else rdmsrl(MSR_FS_BASE, fsbase); @@ -67,7 +67,7 @@ static inline unsigned long x86_fsbase_read_cpu(void) static inline void x86_fsbase_write_cpu(unsigned long fsbase) { - if (static_cpu_has(X86_FEATURE_FSGSBASE)) + if (boot_cpu_has(X86_FEATURE_FSGSBASE)) wrfsbase(fsbase); else wrmsrl(MSR_FS_BASE, fsbase); -- cgit v1.2.3