Messages in this thread Patch in this message | | | Date | Fri, 28 Jul 2023 17:47:20 -0700 | Subject | [PATCH v3 10/12] KVM: x86/mmu: Use BUILD_BUG_ON_INVALID() for KVM_MMU_WARN_ON() stub | From | Sean Christopherson <> |
| |
Use BUILD_BUG_ON_INVALID() instead of an empty do-while loop to stub out KVM_MMU_WARN_ON() when CONFIG_KVM_PROVE_MMU=n, that way _some_ build issues with the usage of KVM_MMU_WARN_ON() will be dected even if the kernel is using the stubs, e.g. basic syntax errors will be detected.
Signed-off-by: Sean Christopherson <seanjc@google.com> --- arch/x86/kvm/mmu/mmu_internal.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kvm/mmu/mmu_internal.h b/arch/x86/kvm/mmu/mmu_internal.h index 40e74db6a7d5..f1ef670058e5 100644 --- a/arch/x86/kvm/mmu/mmu_internal.h +++ b/arch/x86/kvm/mmu/mmu_internal.h @@ -9,7 +9,7 @@ #ifdef CONFIG_KVM_PROVE_MMU #define KVM_MMU_WARN_ON(x) WARN_ON_ONCE(x) #else -#define KVM_MMU_WARN_ON(x) do { } while (0) +#define KVM_MMU_WARN_ON(x) BUILD_BUG_ON_INVALID(x) #endif /* Page table builder macros common to shadow (host) PTEs and guest PTEs. */ -- 2.41.0.487.g6d72f3e995-goog
| |