From: Ricardo Koller <ricarkol@google.com>
Date: Tue, 5 Oct 2021 01:19:15 +0000 (-0700)
Subject: KVM: arm64: vgic: Drop vgic_check_ioaddr()
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=96e903896969679104c7fef2c776ed1b5b09584f;p=uclinux-h8%2Flinux.git

KVM: arm64: vgic: Drop vgic_check_ioaddr()

There are no more users of vgic_check_ioaddr(). Move its checks to
vgic_check_iorange() and then remove it.

Signed-off-by: Ricardo Koller <ricarkol@google.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211005011921.437353-6-ricarkol@google.com
---

diff --git a/arch/arm64/kvm/vgic/vgic-kvm-device.c b/arch/arm64/kvm/vgic/vgic-kvm-device.c
index 08ae34b1a986..0d000d2fe8d2 100644
--- a/arch/arm64/kvm/vgic/vgic-kvm-device.c
+++ b/arch/arm64/kvm/vgic/vgic-kvm-device.c
@@ -14,38 +14,20 @@
 
 /* common helpers */
 
-int vgic_check_ioaddr(struct kvm *kvm, phys_addr_t *ioaddr,
-		      phys_addr_t addr, phys_addr_t alignment)
-{
-	if (addr & ~kvm_phys_mask(kvm))
-		return -E2BIG;
-
-	if (!IS_ALIGNED(addr, alignment))
-		return -EINVAL;
-
-	if (!IS_VGIC_ADDR_UNDEF(*ioaddr))
-		return -EEXIST;
-
-	return 0;
-}
-
 int vgic_check_iorange(struct kvm *kvm, phys_addr_t ioaddr,
 		       phys_addr_t addr, phys_addr_t alignment,
 		       phys_addr_t size)
 {
-	int ret;
-
-	ret = vgic_check_ioaddr(kvm, &ioaddr, addr, alignment);
-	if (ret)
-		return ret;
+	if (!IS_VGIC_ADDR_UNDEF(ioaddr))
+		return -EEXIST;
 
-	if (!IS_ALIGNED(size, alignment))
+	if (!IS_ALIGNED(addr, alignment) || !IS_ALIGNED(size, alignment))
 		return -EINVAL;
 
 	if (addr + size < addr)
 		return -EINVAL;
 
-	if (addr + size > kvm_phys_size(kvm))
+	if (addr & ~kvm_phys_mask(kvm) || addr + size > kvm_phys_size(kvm))
 		return -E2BIG;
 
 	return 0;
diff --git a/arch/arm64/kvm/vgic/vgic.h b/arch/arm64/kvm/vgic/vgic.h
index 4be01c38e8f1..3fd6c86a7ef3 100644
--- a/arch/arm64/kvm/vgic/vgic.h
+++ b/arch/arm64/kvm/vgic/vgic.h
@@ -172,9 +172,6 @@ void vgic_kick_vcpus(struct kvm *kvm);
 void vgic_irq_handle_resampling(struct vgic_irq *irq,
 				bool lr_deactivated, bool lr_pending);
 
-int vgic_check_ioaddr(struct kvm *kvm, phys_addr_t *ioaddr,
-		      phys_addr_t addr, phys_addr_t alignment);
-
 int vgic_check_iorange(struct kvm *kvm, phys_addr_t ioaddr,
 		       phys_addr_t addr, phys_addr_t alignment,
 		       phys_addr_t size);