+++ /dev/null
-From 7288bde1f9df6c1475675419bdd7725ce84dec56 Mon Sep 17 00:00:00 2001
-From: Arnd Bergmann <arnd@arndb.de>
-Date: Mon, 20 Aug 2018 23:37:50 +0200
-Subject: x86: kvm: avoid unused variable warning
-
-From: Arnd Bergmann <arnd@arndb.de>
-
-commit 7288bde1f9df6c1475675419bdd7725ce84dec56 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: 28a1f3ac1d0c ("kvm: x86: Set highest physical address bits in non-present/reserved SPTEs")
-Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-Cc: stable@vger.kernel.org # L1TF
-Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
----
- arch/x86/kvm/x86.c | 4 +---
- 1 file changed, 1 insertion(+), 3 deletions(-)
-
---- a/arch/x86/kvm/x86.c
-+++ b/arch/x86/kvm/x86.c
-@@ -6512,14 +6512,12 @@ 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;
--#endif
-
- kvm_mmu_set_mmio_spte_mask(mask, mask);
- }