Commit 82a0e0f5 authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Greg Kroah-Hartman

x86: kvm: avoid unused variable warning

commit 7288bde1 upstream.

Removing one of the two accesses of the maxphyaddr variable led to
a harmless warning:

arch/x86/kvm/x86.c: In function 'kvm_set_mmio_spte_mask':
arch/x86/kvm/x86.c:6563:6: error: unused variable 'maxphyaddr' [-Werror=unused-variable]

Removing the #ifdef seems to be the nicest workaround, as it
makes the code look cleaner than adding another #ifdef.

Fixes: 28a1f3ac ("kvm: x86: Set highest physical address bits in non-present/reserved SPTEs")
Signed-off-by: default avatarArnd Bergmann <>
Cc: # L1TF
Signed-off-by: default avatarPaolo Bonzini <>
Signed-off-by: default avatarGreg Kroah-Hartman <>
parent e02c9275
......@@ -6204,14 +6204,12 @@ static void kvm_set_mmio_spte_mask(void)
/* Set the present bit. */
mask |= 1ull;
#ifdef CONFIG_X86_64
* If reserved bit is not supported, clear the present bit to disable
* mmio page fault.
if (maxphyaddr == 52)
if (IS_ENABLED(CONFIG_X86_64) && maxphyaddr == 52)
mask &= ~1ull;
kvm_mmu_set_mmio_spte_mask(mask, mask);
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