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/m32r/include/asm/device.h | 2 +- arch/m32r/include/asm/dma-mapping.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/m32r/include/asm') diff --git a/arch/m32r/include/asm/device.h b/arch/m32r/include/asm/device.h index 4a9f35e..7955a97 100644 --- a/arch/m32r/include/asm/device.h +++ b/arch/m32r/include/asm/device.h @@ -4,7 +4,7 @@ * This file is released under the GPLv2 */ struct dev_archdata { - struct dma_map_ops *dma_ops; + const struct dma_map_ops *dma_ops; }; struct pdev_archdata { diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h index 2c43a77..99c43d2 100644 --- a/arch/m32r/include/asm/dma-mapping.h +++ b/arch/m32r/include/asm/dma-mapping.h @@ -10,7 +10,7 @@ #define DMA_ERROR_CODE (~(dma_addr_t)0x0) -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; -- cgit v1.1 From 5657933dbb6e25feaf5d8df8c88f96cdade693a3 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Fri, 20 Jan 2017 13:04:02 -0800 Subject: treewide: Move dma_ops from struct dev_archdata into struct device Some but not all architectures provide set_dma_ops(). Move dma_ops from struct dev_archdata into struct device such that it becomes possible on all architectures to configure dma_ops per device. Signed-off-by: Bart Van Assche Acked-by: Greg Kroah-Hartman 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/m32r/include/asm/device.h | 1 - arch/m32r/include/asm/dma-mapping.h | 4 ++-- 2 files changed, 2 insertions(+), 3 deletions(-) (limited to 'arch/m32r/include/asm') diff --git a/arch/m32r/include/asm/device.h b/arch/m32r/include/asm/device.h index 7955a97..5203fc8 100644 --- a/arch/m32r/include/asm/device.h +++ b/arch/m32r/include/asm/device.h @@ -4,7 +4,6 @@ * This file is released under the GPLv2 */ struct dev_archdata { - const struct dma_map_ops *dma_ops; }; struct pdev_archdata { diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h index 99c43d2..27b1597 100644 --- a/arch/m32r/include/asm/dma-mapping.h +++ b/arch/m32r/include/asm/dma-mapping.h @@ -12,8 +12,8 @@ static inline const struct dma_map_ops *get_dma_ops(struct device *dev) { - if (dev && dev->archdata.dma_ops) - return dev->archdata.dma_ops; + if (dev && dev->dma_ops) + return dev->dma_ops; return &dma_noop_ops; } -- cgit v1.1 From 815dd18788fe0d41899f51b91d0560279cf16b0d Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Fri, 20 Jan 2017 13:04:04 -0800 Subject: treewide: Consolidate get_dma_ops() implementations Introduce a new architecture-specific get_arch_dma_ops() function that takes a struct bus_type * argument. Add get_dma_ops() in . Signed-off-by: Bart Van Assche 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/m32r/include/asm/dma-mapping.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'arch/m32r/include/asm') diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h index 27b1597..c01d9f5 100644 --- a/arch/m32r/include/asm/dma-mapping.h +++ b/arch/m32r/include/asm/dma-mapping.h @@ -10,10 +10,8 @@ #define DMA_ERROR_CODE (~(dma_addr_t)0x0) -static inline const struct dma_map_ops *get_dma_ops(struct device *dev) +static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) { - if (dev && dev->dma_ops) - return dev->dma_ops; return &dma_noop_ops; } -- cgit v1.1