From 5299709d0a87342dadc1fc9850484fadeb488bf8 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Fri, 20 Jan 2017 13:04:01 -0800 Subject: treewide: Constify most dma_map_ops structures Most dma_map_ops structures are never modified. Constify these structures such that these can be write-protected. This patch has been generated as follows: git grep -l 'struct dma_map_ops' | xargs -d\\n sed -i \ -e 's/struct dma_map_ops/const struct dma_map_ops/g' \ -e 's/const struct dma_map_ops {/struct dma_map_ops {/g' \ -e 's/^const struct dma_map_ops;$/struct dma_map_ops;/' \ -e 's/const const struct dma_map_ops /const struct dma_map_ops /g'; sed -i -e 's/const \(struct dma_map_ops intel_dma_ops\)/\1/' \ $(git grep -l 'struct dma_map_ops intel_dma_ops'); sed -i -e 's/const \(struct dma_map_ops dma_iommu_ops\)/\1/' \ $(git grep -l 'struct dma_map_ops' | grep ^arch/powerpc); sed -i -e '/^struct vmd_dev {$/,/^};$/ s/const \(struct dma_map_ops[[:blank:]]dma_ops;\)/\1/' \ -e '/^static void vmd_setup_dma_ops/,/^}$/ s/const \(struct dma_map_ops \*dest\)/\1/' \ -e 's/const \(struct dma_map_ops \*dest = \&vmd->dma_ops\)/\1/' \ drivers/pci/host/*.c sed -i -e '/^void __init pci_iommu_alloc(void)$/,/^}$/ s/dma_ops->/intel_dma_ops./' arch/ia64/kernel/pci-dma.c sed -i -e 's/static const struct dma_map_ops sn_dma_ops/static struct dma_map_ops sn_dma_ops/' arch/ia64/sn/pci/pci_dma.c sed -i -e 's/(const struct dma_map_ops \*)//' drivers/misc/mic/bus/vop_bus.c Signed-off-by: Bart Van Assche Reviewed-by: Christoph Hellwig Cc: Benjamin Herrenschmidt Cc: Boris Ostrovsky Cc: David Woodhouse Cc: Juergen Gross Cc: H. Peter Anvin Cc: Ingo Molnar Cc: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Russell King Cc: x86@kernel.org Signed-off-by: Doug Ledford --- arch/tile/include/asm/device.h | 2 +- arch/tile/include/asm/dma-mapping.h | 12 ++++++------ 2 files changed, 7 insertions(+), 7 deletions(-) (limited to 'arch/tile/include') diff --git a/arch/tile/include/asm/device.h b/arch/tile/include/asm/device.h index 6ab8bf146d4c..25f23ac7d361 100644 --- a/arch/tile/include/asm/device.h +++ b/arch/tile/include/asm/device.h @@ -18,7 +18,7 @@ struct dev_archdata { /* DMA operations on that device */ - struct dma_map_ops *dma_ops; + const struct dma_map_ops *dma_ops; /* Offset of the DMA address from the PA. */ dma_addr_t dma_offset; diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h index 01ceb4a895b0..4a06cc75b856 100644 --- a/arch/tile/include/asm/dma-mapping.h +++ b/arch/tile/include/asm/dma-mapping.h @@ -24,12 +24,12 @@ #define ARCH_HAS_DMA_GET_REQUIRED_MASK #endif -extern struct dma_map_ops *tile_dma_map_ops; -extern struct dma_map_ops *gx_pci_dma_map_ops; -extern struct dma_map_ops *gx_legacy_pci_dma_map_ops; -extern struct dma_map_ops *gx_hybrid_pci_dma_map_ops; +extern const struct dma_map_ops *tile_dma_map_ops; +extern const struct dma_map_ops *gx_pci_dma_map_ops; +extern const struct dma_map_ops *gx_legacy_pci_dma_map_ops; +extern const struct dma_map_ops *gx_hybrid_pci_dma_map_ops; -static inline struct dma_map_ops *get_dma_ops(struct device *dev) +static inline const struct dma_map_ops *get_dma_ops(struct device *dev) { if (dev && dev->archdata.dma_ops) return dev->archdata.dma_ops; @@ -59,7 +59,7 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr) static inline void dma_mark_clean(void *addr, size_t size) {} -static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops) +static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops) { dev->archdata.dma_ops = ops; } -- cgit v1.2.3