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x86/cpu: Provide a declaration for itlb_multihit_kvm_mitigation

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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 <asm/spec-ctrl.h> where it belongs and remove the one in the KVM code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20240304005104.787173239@linutronix.de
This commit is contained in:
Thomas Gleixner 2024-03-04 11:12:28 +01:00 committed by Ingo Molnar
parent ca3ec9e554
commit 65efc4dc12
2 changed files with 3 additions and 2 deletions
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2
arch/x86/include/asm/spec-ctrl.h
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@ -96,4 +96,6 @@ static inline void speculative_store_bypass_ht_init(void) { }
extern void speculation_ctrl_update(unsigned long tif);
extern void speculation_ctrl_update_current(void);
extern bool itlb_multihit_kvm_mitigation;
#endif

3
arch/x86/kvm/mmu/mmu.c
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@ -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;