[for,3.14.y,stable,08/22] arm: kvm: STRICT_MM_TYPECHECKS fix for user_mem_abort

Message ID 1435661350-8060-9-git-send-email-shannon.zhao@linaro.org
State New
Headers show

Commit Message

Shannon Zhao June 30, 2015, 10:48 a.m.
From: Steve Capper <steve.capper@linaro.org>

commit 3d08c629244257473450a8ba17cb8184b91e68f8 upstream.

Commit:
b886576 ARM: KVM: user_mem_abort: support stage 2 MMIO page mapping

introduced some code in user_mem_abort that failed to compile if
STRICT_MM_TYPECHECKS was enabled.

This patch fixes up the failing comparison.

Signed-off-by: Steve Capper <steve.capper@linaro.org>
Reviewed-by: Kim Phillips <kim.phillips@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
---
 arch/arm/kvm/mmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index d122772..2206385 100644
--- a/arch/arm/kvm/mmu.c
+++ b/arch/arm/kvm/mmu.c
@@ -850,7 +850,7 @@  static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 		}
 		coherent_cache_guest_page(vcpu, hva, PAGE_SIZE);
 		ret = stage2_set_pte(kvm, memcache, fault_ipa, &new_pte,
-				     mem_type == PAGE_S2_DEVICE);
+			pgprot_val(mem_type) == pgprot_val(PAGE_S2_DEVICE));
 	}