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[155.4.221.129]) by smtp.gmail.com with ESMTPSA id q24sm873218lfp.103.2021.12.04.13.35.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 04 Dec 2021 13:35:24 -0800 (PST) From: Rikard Falkeborn To: Marc Zyngier , James Morse , Alexandru Elisei , Suzuki K Poulose Cc: Catalin Marinas , Will Deacon , Eric Auger , linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org, Rikard Falkeborn Subject: [PATCH] KVM: arm64: Constify kvm_io_gic_ops Date: Sat, 4 Dec 2021 22:35:18 +0100 Message-Id: <20211204213518.83642-1-rikard.falkeborn@gmail.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211204_133527_518338_6B255958 X-CRM114-Status: GOOD ( 13.96 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 --- 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