From: Rikard Falkeborn <rikard.falkeborn@gmail.com>
To: Marc Zyngier <maz@kernel.org>, James Morse <james.morse@arm.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>, Eric Auger <eric.auger@redhat.com>,
linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org,
Rikard Falkeborn <rikard.falkeborn@gmail.com>
Subject: [PATCH] KVM: arm64: Constify kvm_io_gic_ops
Date: Sat, 4 Dec 2021 22:35:18 +0100 [thread overview]
Message-ID: <20211204213518.83642-1-rikard.falkeborn@gmail.com> (raw)
The only usage of kvm_io_gic_ops is to make a comparison with its
address and to pass its address to kvm_iodevice_init() which takes a
pointer to const kvm_io_device_ops as input. Make it const to allow the
compiler to put it in read-only memory.
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
---
arch/arm64/kvm/vgic/vgic-mmio.c | 2 +-
arch/arm64/kvm/vgic/vgic-mmio.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/kvm/vgic/vgic-mmio.c b/arch/arm64/kvm/vgic/vgic-mmio.c
index 48c6067fc5ec..7068da080799 100644
--- a/arch/arm64/kvm/vgic/vgic-mmio.c
+++ b/arch/arm64/kvm/vgic/vgic-mmio.c
@@ -1050,7 +1050,7 @@ static int dispatch_mmio_write(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
return 0;
}
-struct kvm_io_device_ops kvm_io_gic_ops = {
+const struct kvm_io_device_ops kvm_io_gic_ops = {
.read = dispatch_mmio_read,
.write = dispatch_mmio_write,
};
diff --git a/arch/arm64/kvm/vgic/vgic-mmio.h b/arch/arm64/kvm/vgic/vgic-mmio.h
index fefcca2b14dc..3fa696f198a3 100644
--- a/arch/arm64/kvm/vgic/vgic-mmio.h
+++ b/arch/arm64/kvm/vgic/vgic-mmio.h
@@ -34,7 +34,7 @@ struct vgic_register_region {
};
};
-extern struct kvm_io_device_ops kvm_io_gic_ops;
+extern const struct kvm_io_device_ops kvm_io_gic_ops;
#define VGIC_ACCESS_8bit 1
#define VGIC_ACCESS_32bit 2
--
2.34.1
next reply other threads:[~2021-12-04 21:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-04 21:35 Rikard Falkeborn [this message]
2021-12-06 8:41 ` [PATCH] KVM: arm64: Constify kvm_io_gic_ops Marc Zyngier
2021-12-20 14:00 ` [irqchip: irq/irqchip-next] " irqchip-bot for Rikard Falkeborn
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