[v5,02/18] kvm: arm/arm64: Remove spurious WARN_ON
diff mbox series

Message ID 20180917104144.19188-3-suzuki.poulose@arm.com
State Superseded
Headers show
  • kvm: arm64: Dynamic IPA and 52bit IPA
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Commit Message

Suzuki Kuruppassery Poulose Sept. 17, 2018, 10:41 a.m. UTC
On a 4-level page table pgd entry can be empty, unlike a 3-level
page table. Remove the spurious WARN_ON() in stage_get_pud().

Acked-by: Christoffer Dall <cdall@kernel.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
 virt/kvm/arm/mmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff mbox series

diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
index ee7ce8fa4a12..4a285d760ce0 100644
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c
@@ -1005,7 +1005,7 @@  static pud_t *stage2_get_pud(struct kvm *kvm, struct kvm_mmu_memory_cache *cache
 	pud_t *pud;
 	pgd = kvm->arch.pgd + stage2_pgd_index(addr);
-	if (WARN_ON(stage2_pgd_none(*pgd))) {
+	if (stage2_pgd_none(*pgd)) {
 		if (!cache)
 			return NULL;
 		pud = mmu_memory_cache_alloc(cache);