[PATCH v2 7/9] KVM: arm64: Simplify argument passing to vgic_uaccess_[read|write]
From: Eric Auger <eric.auger@redhat.com>
Date: 2021-01-14 10:39:40
Also in:
kvmarm, lkml
Subsystem:
arm64 port (aarch64 architecture), kernel virtual machine for arm64 (kvm/arm64), the rest · Maintainers:
Catalin Marinas, Will Deacon, Marc Zyngier, Oliver Upton, Linus Torvalds
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>
---
v1 -> v2:
- reworded the commit message as suggested by Alexandru
---
arch/arm64/kvm/vgic/vgic-mmio.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/arch/arm64/kvm/vgic/vgic-mmio.c b/arch/arm64/kvm/vgic/vgic-mmio.c
index b2d73fc0d1ef..48c6067fc5ec 100644
--- a/arch/arm64/kvm/vgic/vgic-mmio.c
+++ b/arch/arm64/kvm/vgic/vgic-mmio.c@@ -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,
--
2.21.3