sparse complains rightfully about the missing declaration which has been placed sloppily into the usage site: bugs.c:2223:6: sparse: warning: symbol 'itlb_multihit_kvm_mitigation' was not declared. Should it be static? Add it to spec-ctrl.h where it belongs and remove the one in the kvm code. Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> --- arch/x86/include/asm/spec-ctrl.h | 2 ++ arch/x86/kvm/mmu/mmu.c | 3 +-- 2 files changed, 3 insertions(+), 2 deletions(-) --- a/arch/x86/include/asm/spec-ctrl.h +++ b/arch/x86/include/asm/spec-ctrl.h @@ -96,4 +96,6 @@ static inline void speculative_store_byp extern void speculation_ctrl_update(unsigned long tif); extern void speculation_ctrl_update_current(void); +extern bool itlb_multihit_kvm_mitigation; + #endif --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -53,12 +53,11 @@ #include <asm/cmpxchg.h> #include <asm/io.h> #include <asm/set_memory.h> +#include <asm/spec-ctrl.h> #include <asm/vmx.h> #include "trace.h" -extern bool itlb_multihit_kvm_mitigation; - static bool nx_hugepage_mitigation_hard_disabled; int __read_mostly nx_huge_pages = -1;
