From a0a2260c12d8658e522f21ed8ece72bbdede58fd Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Tue, 17 Dec 2019 13:32:39 -0800 Subject: KVM: x86: Move bit() helper to cpuid.h Move bit() to cpuid.h in preparation for incorporating the reverse_cpuid array in bit() build-time assertions. Opportunistically use the BIT() macro instead of open-coding the shift. No functional change intended. Signed-off-by: Sean Christopherson Signed-off-by: Paolo Bonzini --- arch/x86/kvm/cpuid.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/x86/kvm/cpuid.h') diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h index b82ae4d3dc71..f908f76216bf 100644 --- a/arch/x86/kvm/cpuid.h +++ b/arch/x86/kvm/cpuid.h @@ -55,6 +55,11 @@ static const struct cpuid_reg reverse_cpuid[] = { [CPUID_7_EDX] = { 7, 0, CPUID_EDX}, }; +static inline u32 bit(int bitno) +{ + return BIT(bitno & 31); +} + static __always_inline struct cpuid_reg x86_feature_cpuid(unsigned x86_feature) { unsigned x86_leaf = x86_feature / 32; -- cgit v1.2.3