[PATCH v3 06/20] kvm: arm/arm64: Remove spurious WARN_ON
From: suzuki.poulose@arm.com (Suzuki K Poulose)
Date: 2018-06-29 11:16:39
Also in:
kvm, kvmarm, lkml, qemu-devel
Subsystem:
kernel virtual machine (kvm), the rest · Maintainers:
Paolo Bonzini, Linus Torvalds
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 <redacted> Acked-by: Christoffer Dall <cdall@kernel.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> --- 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 061e6b3..308171c 100644
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c@@ -976,7 +976,7 @@ 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);
--
2.7.4