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KVM: arm64: Simplify argument passing to vgic_uaccess_[read|write] 

vgic_uaccess() takes a struct vgic_io_device argument, converts it
to a struct kvm_io_device and passes it to the read/write accessor
functions, which convert it back to a struct vgic_io_device.
Avoid the indirection by passing the struct vgic_io_device argument
directly to vgic_uaccess_{read,write}.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210405163941.510258-7-eric.auger@redhat.com
This commit is contained in:
Eric Auger 2021-04-05 18:39:38 +02:00 committed by Marc Zyngier
parent 298c41b8fa
commit da38530976
1 changed files with 4 additions and 6 deletions
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10
arch/arm64/kvm/vgic/vgic-mmio.c
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@ -938,10 +938,9 @@ vgic_get_mmio_region(struct kvm_vcpu *vcpu, struct vgic_io_device *iodev,
return region;
}
static int vgic_uaccess_read(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
static int vgic_uaccess_read(struct kvm_vcpu *vcpu, struct vgic_io_device *iodev,
gpa_t addr, u32 *val)
{
struct vgic_io_device *iodev = kvm_to_vgic_iodev(dev);
const struct vgic_register_region *region;
struct kvm_vcpu *r_vcpu;
@ -960,10 +959,9 @@ static int vgic_uaccess_read(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
return 0;
}
static int vgic_uaccess_write(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
static int vgic_uaccess_write(struct kvm_vcpu *vcpu, struct vgic_io_device *iodev,
gpa_t addr, const u32 *val)
{
struct vgic_io_device *iodev = kvm_to_vgic_iodev(dev);
const struct vgic_register_region *region;
struct kvm_vcpu *r_vcpu;
@ -986,9 +984,9 @@ int vgic_uaccess(struct kvm_vcpu *vcpu, struct vgic_io_device *dev,
bool is_write, int offset, u32 *val)
{
if (is_write)
return vgic_uaccess_write(vcpu, &dev->dev, offset, val);
return vgic_uaccess_write(vcpu, dev, offset, val);
else
return vgic_uaccess_read(vcpu, &dev->dev, offset, val);
return vgic_uaccess_read(vcpu, dev, offset, val);
}
static int dispatch_mmio_read(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,