From mboxrd@z Thu Jan 1 00:00:00 1970 From: suzuki.poulose@arm.com (Suzuki K Poulose) Date: Tue, 9 Jan 2018 19:04:02 +0000 Subject: [PATCH v1 07/16] kvm: arm/arm64: Remove spurious WARN_ON In-Reply-To: <20180109190414.4017-1-suzuki.poulose@arm.com> References: <20180109190414.4017-1-suzuki.poulose@arm.com> Message-ID: <20180109190414.4017-8-suzuki.poulose@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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(). Cc: Marc Zyngier Cc: Christoffer Dall Signed-off-by: Suzuki K Poulose --- virt/kvm/arm/mmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c index e6548c85c495..78253fe00fc4 100644 --- a/virt/kvm/arm/mmu.c +++ b/virt/kvm/arm/mmu.c @@ -870,7 +870,7 @@ 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); -- 2.13.6