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/alpha/include/asm/dma-mapping.h | 4 ++-- arch/alpha/kernel/pci-noop.c | 4 ++-- arch/alpha/kernel/pci_iommu.c | 4 ++-- arch/arc/include/asm/dma-mapping.h | 4 ++-- arch/arc/mm/dma.c | 2 +- arch/arm/common/dmabounce.c | 2 +- arch/arm/include/asm/device.h | 2 +- arch/arm/include/asm/dma-mapping.h | 10 ++++----- arch/arm/mm/dma-mapping.c | 22 ++++++++++---------- arch/arm/xen/mm.c | 4 ++-- arch/arm64/include/asm/device.h | 2 +- arch/arm64/include/asm/dma-mapping.h | 6 +++--- arch/arm64/mm/dma-mapping.c | 6 +++--- arch/avr32/include/asm/dma-mapping.h | 4 ++-- arch/avr32/mm/dma-coherent.c | 2 +- arch/blackfin/include/asm/dma-mapping.h | 4 ++-- arch/blackfin/kernel/dma-mapping.c | 2 +- arch/c6x/include/asm/dma-mapping.h | 4 ++-- arch/c6x/kernel/dma.c | 2 +- arch/cris/arch-v32/drivers/pci/dma.c | 2 +- arch/cris/include/asm/dma-mapping.h | 6 +++--- arch/frv/include/asm/dma-mapping.h | 4 ++-- arch/frv/mb93090-mb00/pci-dma-nommu.c | 2 +- arch/frv/mb93090-mb00/pci-dma.c | 2 +- arch/h8300/include/asm/dma-mapping.h | 4 ++-- arch/h8300/kernel/dma.c | 2 +- arch/hexagon/include/asm/dma-mapping.h | 4 ++-- arch/hexagon/kernel/dma.c | 4 ++-- arch/ia64/hp/common/hwsw_iommu.c | 4 ++-- arch/ia64/hp/common/sba_iommu.c | 4 ++-- arch/ia64/include/asm/dma-mapping.h | 2 +- arch/ia64/include/asm/machvec.h | 4 ++-- arch/ia64/kernel/dma-mapping.c | 4 ++-- arch/ia64/kernel/pci-dma.c | 10 ++++----- arch/ia64/kernel/pci-swiotlb.c | 2 +- arch/m32r/include/asm/device.h | 2 +- arch/m32r/include/asm/dma-mapping.h | 2 +- arch/m68k/include/asm/dma-mapping.h | 4 ++-- arch/m68k/kernel/dma.c | 2 +- arch/metag/include/asm/dma-mapping.h | 4 ++-- arch/metag/kernel/dma.c | 2 +- arch/microblaze/include/asm/dma-mapping.h | 4 ++-- arch/microblaze/kernel/dma.c | 2 +- arch/mips/cavium-octeon/dma-octeon.c | 4 ++-- arch/mips/include/asm/device.h | 2 +- arch/mips/include/asm/dma-mapping.h | 4 ++-- .../include/asm/mach-cavium-octeon/dma-coherence.h | 2 +- arch/mips/include/asm/netlogic/common.h | 2 +- arch/mips/loongson64/common/dma-swiotlb.c | 2 +- arch/mips/mm/dma-default.c | 4 ++-- arch/mips/netlogic/common/nlm-dma.c | 2 +- arch/mn10300/include/asm/dma-mapping.h | 4 ++-- arch/mn10300/mm/dma-alloc.c | 2 +- arch/nios2/include/asm/dma-mapping.h | 4 ++-- arch/nios2/mm/dma-mapping.c | 2 +- arch/openrisc/include/asm/dma-mapping.h | 4 ++-- arch/openrisc/kernel/dma.c | 2 +- arch/parisc/include/asm/dma-mapping.h | 8 ++++---- arch/parisc/kernel/drivers.c | 2 +- arch/parisc/kernel/pci-dma.c | 4 ++-- arch/powerpc/include/asm/device.h | 2 +- arch/powerpc/include/asm/dma-mapping.h | 6 +++--- arch/powerpc/include/asm/pci.h | 4 ++-- arch/powerpc/include/asm/swiotlb.h | 2 +- arch/powerpc/kernel/dma-swiotlb.c | 2 +- arch/powerpc/kernel/dma.c | 6 +++--- arch/powerpc/kernel/pci-common.c | 6 +++--- arch/powerpc/platforms/cell/iommu.c | 4 ++-- arch/powerpc/platforms/powernv/npu-dma.c | 2 +- arch/powerpc/platforms/ps3/system-bus.c | 4 ++-- arch/powerpc/platforms/pseries/ibmebus.c | 2 +- arch/powerpc/platforms/pseries/vio.c | 2 +- arch/s390/include/asm/device.h | 2 +- arch/s390/include/asm/dma-mapping.h | 4 ++-- arch/s390/pci/pci_dma.c | 2 +- arch/sh/include/asm/dma-mapping.h | 4 ++-- arch/sh/kernel/dma-nommu.c | 2 +- arch/sh/mm/consistent.c | 2 +- arch/sparc/include/asm/dma-mapping.h | 8 ++++---- arch/sparc/kernel/iommu.c | 4 ++-- arch/sparc/kernel/ioport.c | 8 ++++---- arch/sparc/kernel/pci_sun4v.c | 2 +- arch/tile/include/asm/device.h | 2 +- arch/tile/include/asm/dma-mapping.h | 12 +++++------ arch/tile/kernel/pci-dma.c | 24 +++++++++++----------- arch/unicore32/include/asm/dma-mapping.h | 4 ++-- arch/unicore32/mm/dma-swiotlb.c | 2 +- arch/x86/include/asm/device.h | 4 ++-- arch/x86/include/asm/dma-mapping.h | 4 ++-- arch/x86/include/asm/iommu.h | 2 +- arch/x86/kernel/amd_gart_64.c | 2 +- arch/x86/kernel/pci-calgary_64.c | 2 +- arch/x86/kernel/pci-dma.c | 4 ++-- arch/x86/kernel/pci-nommu.c | 2 +- arch/x86/kernel/pci-swiotlb.c | 2 +- arch/x86/pci/sta2x11-fixup.c | 2 +- arch/x86/xen/pci-swiotlb-xen.c | 2 +- arch/xtensa/include/asm/device.h | 2 +- arch/xtensa/include/asm/dma-mapping.h | 4 ++-- arch/xtensa/kernel/pci-dma.c | 2 +- 100 files changed, 192 insertions(+), 192 deletions(-) (limited to 'arch') diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h index c63b6ac19ee5..d3480562411d 100644 --- a/arch/alpha/include/asm/dma-mapping.h +++ b/arch/alpha/include/asm/dma-mapping.h @@ -1,9 +1,9 @@ #ifndef _ALPHA_DMA_MAPPING_H #define _ALPHA_DMA_MAPPING_H -extern struct dma_map_ops *dma_ops; +extern const struct dma_map_ops *dma_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) { return dma_ops; } diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c index bb152e21e5ae..ffbdb3fb672f 100644 --- a/arch/alpha/kernel/pci-noop.c +++ b/arch/alpha/kernel/pci-noop.c @@ -128,7 +128,7 @@ static int alpha_noop_supported(struct device *dev, u64 mask) return mask < 0x00ffffffUL ? 0 : 1; } -struct dma_map_ops alpha_noop_ops = { +const struct dma_map_ops alpha_noop_ops = { .alloc = alpha_noop_alloc_coherent, .free = dma_noop_free_coherent, .map_page = dma_noop_map_page, @@ -137,5 +137,5 @@ struct dma_map_ops alpha_noop_ops = { .dma_supported = alpha_noop_supported, }; -struct dma_map_ops *dma_ops = &alpha_noop_ops; +const struct dma_map_ops *dma_ops = &alpha_noop_ops; EXPORT_SYMBOL(dma_ops); diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c index 451fc9cdd323..7fd2329038a3 100644 --- a/arch/alpha/kernel/pci_iommu.c +++ b/arch/alpha/kernel/pci_iommu.c @@ -939,7 +939,7 @@ static int alpha_pci_mapping_error(struct device *dev, dma_addr_t dma_addr) return dma_addr == 0; } -struct dma_map_ops alpha_pci_ops = { +const struct dma_map_ops alpha_pci_ops = { .alloc = alpha_pci_alloc_coherent, .free = alpha_pci_free_coherent, .map_page = alpha_pci_map_page, @@ -950,5 +950,5 @@ struct dma_map_ops alpha_pci_ops = { .dma_supported = alpha_pci_supported, }; -struct dma_map_ops *dma_ops = &alpha_pci_ops; +const struct dma_map_ops *dma_ops = &alpha_pci_ops; EXPORT_SYMBOL(dma_ops); diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h index 266f11c9bd59..fdff3aa60052 100644 --- a/arch/arc/include/asm/dma-mapping.h +++ b/arch/arc/include/asm/dma-mapping.h @@ -18,9 +18,9 @@ #include #endif -extern struct dma_map_ops arc_dma_ops; +extern const struct dma_map_ops arc_dma_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) { return &arc_dma_ops; } diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c index 08450a1a5b5f..2a07e6ecafbd 100644 --- a/arch/arc/mm/dma.c +++ b/arch/arc/mm/dma.c @@ -218,7 +218,7 @@ static int arc_dma_supported(struct device *dev, u64 dma_mask) return dma_mask == DMA_BIT_MASK(32); } -struct dma_map_ops arc_dma_ops = { +const struct dma_map_ops arc_dma_ops = { .alloc = arc_dma_alloc, .free = arc_dma_free, .mmap = arc_dma_mmap, diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c index 75055df1cda3..9b1b7be2ec0e 100644 --- a/arch/arm/common/dmabounce.c +++ b/arch/arm/common/dmabounce.c @@ -452,7 +452,7 @@ static int dmabounce_set_mask(struct device *dev, u64 dma_mask) return arm_dma_ops.set_dma_mask(dev, dma_mask); } -static struct dma_map_ops dmabounce_ops = { +static const struct dma_map_ops dmabounce_ops = { .alloc = arm_dma_alloc, .free = arm_dma_free, .mmap = arm_dma_mmap, diff --git a/arch/arm/include/asm/device.h b/arch/arm/include/asm/device.h index 4111592f0130..d8a572f9c187 100644 --- a/arch/arm/include/asm/device.h +++ b/arch/arm/include/asm/device.h @@ -7,7 +7,7 @@ #define ASMARM_DEVICE_H struct dev_archdata { - struct dma_map_ops *dma_ops; + const struct dma_map_ops *dma_ops; #ifdef CONFIG_DMABOUNCE struct dmabounce_device_info *dmabounce; #endif diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index bf02dbd9ccda..1aabd781306f 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -13,17 +13,17 @@ #include #define DMA_ERROR_CODE (~(dma_addr_t)0x0) -extern struct dma_map_ops arm_dma_ops; -extern struct dma_map_ops arm_coherent_dma_ops; +extern const struct dma_map_ops arm_dma_ops; +extern const struct dma_map_ops arm_coherent_dma_ops; -static inline struct dma_map_ops *__generic_dma_ops(struct device *dev) +static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev) { if (dev && dev->archdata.dma_ops) return dev->archdata.dma_ops; return &arm_dma_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 (xen_initial_domain()) return xen_dma_ops; @@ -31,7 +31,7 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev) return __generic_dma_ops(dev); } -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) { BUG_ON(!dev); dev->archdata.dma_ops = ops; diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index ab7710002ba6..d26fe1a35687 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -180,7 +180,7 @@ static void arm_dma_sync_single_for_device(struct device *dev, __dma_page_cpu_to_dev(page, offset, size, dir); } -struct dma_map_ops arm_dma_ops = { +const struct dma_map_ops arm_dma_ops = { .alloc = arm_dma_alloc, .free = arm_dma_free, .mmap = arm_dma_mmap, @@ -204,7 +204,7 @@ static int arm_coherent_dma_mmap(struct device *dev, struct vm_area_struct *vma, void *cpu_addr, dma_addr_t dma_addr, size_t size, unsigned long attrs); -struct dma_map_ops arm_coherent_dma_ops = { +const struct dma_map_ops arm_coherent_dma_ops = { .alloc = arm_coherent_dma_alloc, .free = arm_coherent_dma_free, .mmap = arm_coherent_dma_mmap, @@ -1067,7 +1067,7 @@ static void __dma_page_dev_to_cpu(struct page *page, unsigned long off, int arm_dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, enum dma_data_direction dir, unsigned long attrs) { - struct dma_map_ops *ops = get_dma_ops(dev); + const struct dma_map_ops *ops = get_dma_ops(dev); struct scatterlist *s; int i, j; @@ -1101,7 +1101,7 @@ int arm_dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, void arm_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, enum dma_data_direction dir, unsigned long attrs) { - struct dma_map_ops *ops = get_dma_ops(dev); + const struct dma_map_ops *ops = get_dma_ops(dev); struct scatterlist *s; int i; @@ -1120,7 +1120,7 @@ void arm_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, void arm_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents, enum dma_data_direction dir) { - struct dma_map_ops *ops = get_dma_ops(dev); + const struct dma_map_ops *ops = get_dma_ops(dev); struct scatterlist *s; int i; @@ -1139,7 +1139,7 @@ void arm_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, void arm_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents, enum dma_data_direction dir) { - struct dma_map_ops *ops = get_dma_ops(dev); + const struct dma_map_ops *ops = get_dma_ops(dev); struct scatterlist *s; int i; @@ -2099,7 +2099,7 @@ static void arm_iommu_sync_single_for_device(struct device *dev, __dma_page_cpu_to_dev(page, offset, size, dir); } -struct dma_map_ops iommu_ops = { +const struct dma_map_ops iommu_ops = { .alloc = arm_iommu_alloc_attrs, .free = arm_iommu_free_attrs, .mmap = arm_iommu_mmap_attrs, @@ -2119,7 +2119,7 @@ struct dma_map_ops iommu_ops = { .unmap_resource = arm_iommu_unmap_resource, }; -struct dma_map_ops iommu_coherent_ops = { +const struct dma_map_ops iommu_coherent_ops = { .alloc = arm_coherent_iommu_alloc_attrs, .free = arm_coherent_iommu_free_attrs, .mmap = arm_coherent_iommu_mmap_attrs, @@ -2319,7 +2319,7 @@ void arm_iommu_detach_device(struct device *dev) } EXPORT_SYMBOL_GPL(arm_iommu_detach_device); -static struct dma_map_ops *arm_get_iommu_dma_map_ops(bool coherent) +static const struct dma_map_ops *arm_get_iommu_dma_map_ops(bool coherent) { return coherent ? &iommu_coherent_ops : &iommu_ops; } @@ -2374,7 +2374,7 @@ static void arm_teardown_iommu_dma_ops(struct device *dev) { } #endif /* CONFIG_ARM_DMA_USE_IOMMU */ -static struct dma_map_ops *arm_get_dma_map_ops(bool coherent) +static const struct dma_map_ops *arm_get_dma_map_ops(bool coherent) { return coherent ? &arm_coherent_dma_ops : &arm_dma_ops; } @@ -2382,7 +2382,7 @@ static struct dma_map_ops *arm_get_dma_map_ops(bool coherent) void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, const struct iommu_ops *iommu, bool coherent) { - struct dma_map_ops *dma_ops; + const struct dma_map_ops *dma_ops; dev->archdata.dma_coherent = coherent; if (arm_setup_iommu_dma_ops(dev, dma_base, size, iommu)) diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c index bd62d94f8ac5..ce18c91b50a1 100644 --- a/arch/arm/xen/mm.c +++ b/arch/arm/xen/mm.c @@ -182,10 +182,10 @@ void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order) } EXPORT_SYMBOL_GPL(xen_destroy_contiguous_region); -struct dma_map_ops *xen_dma_ops; +const struct dma_map_ops *xen_dma_ops; EXPORT_SYMBOL(xen_dma_ops); -static struct dma_map_ops xen_swiotlb_dma_ops = { +static const struct dma_map_ops xen_swiotlb_dma_ops = { .alloc = xen_swiotlb_alloc_coherent, .free = xen_swiotlb_free_coherent, .sync_single_for_cpu = xen_swiotlb_sync_single_for_cpu, diff --git a/arch/arm64/include/asm/device.h b/arch/arm64/include/asm/device.h index 243ef256b8c9..00c678cc31e1 100644 --- a/arch/arm64/include/asm/device.h +++ b/arch/arm64/include/asm/device.h @@ -17,7 +17,7 @@ #define __ASM_DEVICE_H struct dev_archdata { - struct dma_map_ops *dma_ops; + const struct dma_map_ops *dma_ops; #ifdef CONFIG_IOMMU_API void *iommu; /* private IOMMU data */ #endif diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h index ccea82c2b089..1fedb43be712 100644 --- a/arch/arm64/include/asm/dma-mapping.h +++ b/arch/arm64/include/asm/dma-mapping.h @@ -25,9 +25,9 @@ #include #define DMA_ERROR_CODE (~(dma_addr_t)0) -extern struct dma_map_ops dummy_dma_ops; +extern const struct dma_map_ops dummy_dma_ops; -static inline struct dma_map_ops *__generic_dma_ops(struct device *dev) +static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev) { if (dev && dev->archdata.dma_ops) return dev->archdata.dma_ops; @@ -39,7 +39,7 @@ static inline struct dma_map_ops *__generic_dma_ops(struct device *dev) return &dummy_dma_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 (xen_initial_domain()) return xen_dma_ops; diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c index e04082700bb1..bcef6368d48f 100644 --- a/arch/arm64/mm/dma-mapping.c +++ b/arch/arm64/mm/dma-mapping.c @@ -352,7 +352,7 @@ static int __swiotlb_dma_supported(struct device *hwdev, u64 mask) return 1; } -static struct dma_map_ops swiotlb_dma_ops = { +static const struct dma_map_ops swiotlb_dma_ops = { .alloc = __dma_alloc, .free = __dma_free, .mmap = __swiotlb_mmap, @@ -505,7 +505,7 @@ static int __dummy_dma_supported(struct device *hwdev, u64 mask) return 0; } -struct dma_map_ops dummy_dma_ops = { +const struct dma_map_ops dummy_dma_ops = { .alloc = __dummy_alloc, .free = __dummy_free, .mmap = __dummy_mmap, @@ -784,7 +784,7 @@ static void __iommu_unmap_sg_attrs(struct device *dev, iommu_dma_unmap_sg(dev, sgl, nelems, dir, attrs); } -static struct dma_map_ops iommu_dma_ops = { +static const struct dma_map_ops iommu_dma_ops = { .alloc = __iommu_alloc_attrs, .free = __iommu_free_attrs, .mmap = __iommu_mmap_attrs, diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h index 1115f2a645d1..b2b43c0e0774 100644 --- a/arch/avr32/include/asm/dma-mapping.h +++ b/arch/avr32/include/asm/dma-mapping.h @@ -4,9 +4,9 @@ extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size, int direction); -extern struct dma_map_ops avr32_dma_ops; +extern const struct dma_map_ops avr32_dma_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) { return &avr32_dma_ops; } diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c index 54534e5d0781..555222d4f414 100644 --- a/arch/avr32/mm/dma-coherent.c +++ b/arch/avr32/mm/dma-coherent.c @@ -191,7 +191,7 @@ static void avr32_dma_sync_sg_for_device(struct device *dev, dma_cache_sync(dev, sg_virt(sg), sg->length, direction); } -struct dma_map_ops avr32_dma_ops = { +const struct dma_map_ops avr32_dma_ops = { .alloc = avr32_dma_alloc, .free = avr32_dma_free, .map_page = avr32_dma_map_page, diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h index 3490570aaa82..320fb50fbd41 100644 --- a/arch/blackfin/include/asm/dma-mapping.h +++ b/arch/blackfin/include/asm/dma-mapping.h @@ -36,9 +36,9 @@ _dma_sync(dma_addr_t addr, size_t size, enum dma_data_direction dir) __dma_sync(addr, size, dir); } -extern struct dma_map_ops bfin_dma_ops; +extern const struct dma_map_ops bfin_dma_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) { return &bfin_dma_ops; } diff --git a/arch/blackfin/kernel/dma-mapping.c b/arch/blackfin/kernel/dma-mapping.c index a27a74a18fb0..477bb29a7987 100644 --- a/arch/blackfin/kernel/dma-mapping.c +++ b/arch/blackfin/kernel/dma-mapping.c @@ -159,7 +159,7 @@ static inline void bfin_dma_sync_single_for_device(struct device *dev, _dma_sync(handle, size, dir); } -struct dma_map_ops bfin_dma_ops = { +const struct dma_map_ops bfin_dma_ops = { .alloc = bfin_dma_alloc, .free = bfin_dma_free, diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h index 5717b1e52d96..88258b9ebc8e 100644 --- a/arch/c6x/include/asm/dma-mapping.h +++ b/arch/c6x/include/asm/dma-mapping.h @@ -17,9 +17,9 @@ */ #define DMA_ERROR_CODE ~0 -extern struct dma_map_ops c6x_dma_ops; +extern const struct dma_map_ops c6x_dma_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) { return &c6x_dma_ops; } diff --git a/arch/c6x/kernel/dma.c b/arch/c6x/kernel/dma.c index 6752df32ef06..9fff8be75f58 100644 --- a/arch/c6x/kernel/dma.c +++ b/arch/c6x/kernel/dma.c @@ -123,7 +123,7 @@ static void c6x_dma_sync_sg_for_device(struct device *dev, } -struct dma_map_ops c6x_dma_ops = { +const struct dma_map_ops c6x_dma_ops = { .alloc = c6x_dma_alloc, .free = c6x_dma_free, .map_page = c6x_dma_map_page, diff --git a/arch/cris/arch-v32/drivers/pci/dma.c b/arch/cris/arch-v32/drivers/pci/dma.c index 1f0636793f0c..7072341995ff 100644 --- a/arch/cris/arch-v32/drivers/pci/dma.c +++ b/arch/cris/arch-v32/drivers/pci/dma.c @@ -69,7 +69,7 @@ static inline int v32_dma_supported(struct device *dev, u64 mask) return 1; } -struct dma_map_ops v32_dma_ops = { +const struct dma_map_ops v32_dma_ops = { .alloc = v32_dma_alloc, .free = v32_dma_free, .map_page = v32_dma_map_page, diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h index 5a370178a0e9..aae4fbc0a656 100644 --- a/arch/cris/include/asm/dma-mapping.h +++ b/arch/cris/include/asm/dma-mapping.h @@ -2,14 +2,14 @@ #define _ASM_CRIS_DMA_MAPPING_H #ifdef CONFIG_PCI -extern struct dma_map_ops v32_dma_ops; +extern const struct dma_map_ops v32_dma_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) { return &v32_dma_ops; } #else -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) { BUG(); return NULL; diff --git a/arch/frv/include/asm/dma-mapping.h b/arch/frv/include/asm/dma-mapping.h index 9a82bfa4303b..150cc00544a8 100644 --- a/arch/frv/include/asm/dma-mapping.h +++ b/arch/frv/include/asm/dma-mapping.h @@ -7,9 +7,9 @@ extern unsigned long __nongprelbss dma_coherent_mem_start; extern unsigned long __nongprelbss dma_coherent_mem_end; -extern struct dma_map_ops frv_dma_ops; +extern const struct dma_map_ops frv_dma_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) { return &frv_dma_ops; } diff --git a/arch/frv/mb93090-mb00/pci-dma-nommu.c b/arch/frv/mb93090-mb00/pci-dma-nommu.c index 187688128c65..4a96de7f0af4 100644 --- a/arch/frv/mb93090-mb00/pci-dma-nommu.c +++ b/arch/frv/mb93090-mb00/pci-dma-nommu.c @@ -164,7 +164,7 @@ static int frv_dma_supported(struct device *dev, u64 mask) return 1; } -struct dma_map_ops frv_dma_ops = { +const struct dma_map_ops frv_dma_ops = { .alloc = frv_dma_alloc, .free = frv_dma_free, .map_page = frv_dma_map_page, diff --git a/arch/frv/mb93090-mb00/pci-dma.c b/arch/frv/mb93090-mb00/pci-dma.c index dba7df918144..e7130abc0dae 100644 --- a/arch/frv/mb93090-mb00/pci-dma.c +++ b/arch/frv/mb93090-mb00/pci-dma.c @@ -106,7 +106,7 @@ static int frv_dma_supported(struct device *dev, u64 mask) return 1; } -struct dma_map_ops frv_dma_ops = { +const struct dma_map_ops frv_dma_ops = { .alloc = frv_dma_alloc, .free = frv_dma_free, .map_page = frv_dma_map_page, diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h index 7ac7fadffed0..f804bca4c13f 100644 --- a/arch/h8300/include/asm/dma-mapping.h +++ b/arch/h8300/include/asm/dma-mapping.h @@ -1,9 +1,9 @@ #ifndef _H8300_DMA_MAPPING_H #define _H8300_DMA_MAPPING_H -extern struct dma_map_ops h8300_dma_map_ops; +extern const struct dma_map_ops h8300_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) { return &h8300_dma_map_ops; } diff --git a/arch/h8300/kernel/dma.c b/arch/h8300/kernel/dma.c index 3651da045806..225dd0a188dc 100644 --- a/arch/h8300/kernel/dma.c +++ b/arch/h8300/kernel/dma.c @@ -60,7 +60,7 @@ static int map_sg(struct device *dev, struct scatterlist *sgl, return nents; } -struct dma_map_ops h8300_dma_map_ops = { +const struct dma_map_ops h8300_dma_map_ops = { .alloc = dma_alloc, .free = dma_free, .map_page = map_page, diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h index 7ef58df909fc..b812e917cd95 100644 --- a/arch/hexagon/include/asm/dma-mapping.h +++ b/arch/hexagon/include/asm/dma-mapping.h @@ -32,9 +32,9 @@ struct device; extern int bad_dma_address; #define DMA_ERROR_CODE bad_dma_address -extern struct dma_map_ops *dma_ops; +extern const struct dma_map_ops *dma_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 (unlikely(dev == NULL)) return NULL; diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c index dbc4f1003da4..e74b65009587 100644 --- a/arch/hexagon/kernel/dma.c +++ b/arch/hexagon/kernel/dma.c @@ -25,7 +25,7 @@ #include #include -struct dma_map_ops *dma_ops; +const struct dma_map_ops *dma_ops; EXPORT_SYMBOL(dma_ops); int bad_dma_address; /* globals are automatically initialized to zero */ @@ -203,7 +203,7 @@ static void hexagon_sync_single_for_device(struct device *dev, dma_sync(dma_addr_to_virt(dma_handle), size, dir); } -struct dma_map_ops hexagon_dma_ops = { +const struct dma_map_ops hexagon_dma_ops = { .alloc = hexagon_dma_alloc_coherent, .free = hexagon_free_coherent, .map_sg = hexagon_map_sg, diff --git a/arch/ia64/hp/common/hwsw_iommu.c b/arch/ia64/hp/common/hwsw_iommu.c index 1e4cae5ae053..0310078a95f8 100644 --- a/arch/ia64/hp/common/hwsw_iommu.c +++ b/arch/ia64/hp/common/hwsw_iommu.c @@ -18,7 +18,7 @@ #include #include -extern struct dma_map_ops sba_dma_ops, swiotlb_dma_ops; +extern const struct dma_map_ops sba_dma_ops, swiotlb_dma_ops; /* swiotlb declarations & definitions: */ extern int swiotlb_late_init_with_default_size (size_t size); @@ -34,7 +34,7 @@ static inline int use_swiotlb(struct device *dev) !sba_dma_ops.dma_supported(dev, *dev->dma_mask); } -struct dma_map_ops *hwsw_dma_get_ops(struct device *dev) +const struct dma_map_ops *hwsw_dma_get_ops(struct device *dev) { if (use_swiotlb(dev)) return &swiotlb_dma_ops; diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c index 630ee8073899..aec4a3354abe 100644 --- a/arch/ia64/hp/common/sba_iommu.c +++ b/arch/ia64/hp/common/sba_iommu.c @@ -2096,7 +2096,7 @@ static int __init acpi_sba_ioc_init_acpi(void) /* This has to run before acpi_scan_init(). */ arch_initcall(acpi_sba_ioc_init_acpi); -extern struct dma_map_ops swiotlb_dma_ops; +extern const struct dma_map_ops swiotlb_dma_ops; static int __init sba_init(void) @@ -2216,7 +2216,7 @@ sba_page_override(char *str) __setup("sbapagesize=",sba_page_override); -struct dma_map_ops sba_dma_ops = { +const struct dma_map_ops sba_dma_ops = { .alloc = sba_alloc_coherent, .free = sba_free_coherent, .map_page = sba_map_page, diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h index d472805edfa9..05e467d56d86 100644 --- a/arch/ia64/include/asm/dma-mapping.h +++ b/arch/ia64/include/asm/dma-mapping.h @@ -14,7 +14,7 @@ #define DMA_ERROR_CODE 0 -extern struct dma_map_ops *dma_ops; +extern const struct dma_map_ops *dma_ops; extern struct ia64_machine_vector ia64_mv; extern void set_iommu_machvec(void); diff --git a/arch/ia64/include/asm/machvec.h b/arch/ia64/include/asm/machvec.h index ed7f09089f12..af285c423e1e 100644 --- a/arch/ia64/include/asm/machvec.h +++ b/arch/ia64/include/asm/machvec.h @@ -44,7 +44,7 @@ typedef void ia64_mv_kernel_launch_event_t(void); /* DMA-mapping interface: */ typedef void ia64_mv_dma_init (void); typedef u64 ia64_mv_dma_get_required_mask (struct device *); -typedef struct dma_map_ops *ia64_mv_dma_get_ops(struct device *); +typedef const struct dma_map_ops *ia64_mv_dma_get_ops(struct device *); /* * WARNING: The legacy I/O space is _architected_. Platforms are @@ -248,7 +248,7 @@ extern void machvec_init_from_cmdline(const char *cmdline); # endif /* CONFIG_IA64_GENERIC */ extern void swiotlb_dma_init(void); -extern struct dma_map_ops *dma_get_ops(struct device *); +extern const struct dma_map_ops *dma_get_ops(struct device *); /* * Define default versions so we can extend machvec for new platforms without having diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c index 7f7916238208..e0dd97f4eb69 100644 --- a/arch/ia64/kernel/dma-mapping.c +++ b/arch/ia64/kernel/dma-mapping.c @@ -4,7 +4,7 @@ /* Set this to 1 if there is a HW IOMMU in the system */ int iommu_detected __read_mostly; -struct dma_map_ops *dma_ops; +const struct dma_map_ops *dma_ops; EXPORT_SYMBOL(dma_ops); #define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16) @@ -17,7 +17,7 @@ static int __init dma_init(void) } fs_initcall(dma_init); -struct dma_map_ops *dma_get_ops(struct device *dev) +const struct dma_map_ops *dma_get_ops(struct device *dev) { return dma_ops; } diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c index 992c1098c522..9094a73f996f 100644 --- a/arch/ia64/kernel/pci-dma.c +++ b/arch/ia64/kernel/pci-dma.c @@ -90,11 +90,11 @@ void __init pci_iommu_alloc(void) { dma_ops = &intel_dma_ops; - dma_ops->sync_single_for_cpu = machvec_dma_sync_single; - dma_ops->sync_sg_for_cpu = machvec_dma_sync_sg; - dma_ops->sync_single_for_device = machvec_dma_sync_single; - dma_ops->sync_sg_for_device = machvec_dma_sync_sg; - dma_ops->dma_supported = iommu_dma_supported; + intel_dma_ops.sync_single_for_cpu = machvec_dma_sync_single; + intel_dma_ops.sync_sg_for_cpu = machvec_dma_sync_sg; + intel_dma_ops.sync_single_for_device = machvec_dma_sync_single; + intel_dma_ops.sync_sg_for_device = machvec_dma_sync_sg; + intel_dma_ops.dma_supported = iommu_dma_supported; /* * The order of these functions is important for diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c index 2933208c0285..a14989dacded 100644 --- a/arch/ia64/kernel/pci-swiotlb.c +++ b/arch/ia64/kernel/pci-swiotlb.c @@ -30,7 +30,7 @@ static void ia64_swiotlb_free_coherent(struct device *dev, size_t size, swiotlb_free_coherent(dev, size, vaddr, dma_addr); } -struct dma_map_ops swiotlb_dma_ops = { +const struct dma_map_ops swiotlb_dma_ops = { .alloc = ia64_swiotlb_alloc_coherent, .free = ia64_swiotlb_free_coherent, .map_page = swiotlb_map_page, diff --git a/arch/m32r/include/asm/device.h b/arch/m32r/include/asm/device.h index 4a9f35e0973f..7955a9799466 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 2c43a77fe942..99c43d2f05dc 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; diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h index 96c536194287..863509939d5a 100644 --- a/arch/m68k/include/asm/dma-mapping.h +++ b/arch/m68k/include/asm/dma-mapping.h @@ -1,9 +1,9 @@ #ifndef _M68K_DMA_MAPPING_H #define _M68K_DMA_MAPPING_H -extern struct dma_map_ops m68k_dma_ops; +extern const struct dma_map_ops m68k_dma_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) { return &m68k_dma_ops; } diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c index 07070065a425..0fc5dabb4a42 100644 --- a/arch/m68k/kernel/dma.c +++ b/arch/m68k/kernel/dma.c @@ -158,7 +158,7 @@ static int m68k_dma_map_sg(struct device *dev, struct scatterlist *sglist, return nents; } -struct dma_map_ops m68k_dma_ops = { +const struct dma_map_ops m68k_dma_ops = { .alloc = m68k_dma_alloc, .free = m68k_dma_free, .map_page = m68k_dma_map_page, diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h index 27af5d479ce6..c156a7ac732f 100644 --- a/arch/metag/include/asm/dma-mapping.h +++ b/arch/metag/include/asm/dma-mapping.h @@ -1,9 +1,9 @@ #ifndef _ASM_METAG_DMA_MAPPING_H #define _ASM_METAG_DMA_MAPPING_H -extern struct dma_map_ops metag_dma_ops; +extern const struct dma_map_ops metag_dma_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) { return &metag_dma_ops; } diff --git a/arch/metag/kernel/dma.c b/arch/metag/kernel/dma.c index 91968d92652b..f0ab3a498328 100644 --- a/arch/metag/kernel/dma.c +++ b/arch/metag/kernel/dma.c @@ -575,7 +575,7 @@ static void metag_dma_sync_sg_for_device(struct device *dev, dma_sync_for_device(sg_virt(sg), sg->length, direction); } -struct dma_map_ops metag_dma_ops = { +const struct dma_map_ops metag_dma_ops = { .alloc = metag_dma_alloc, .free = metag_dma_free, .map_page = metag_dma_map_page, diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h index 1768d4bdc8d3..c7faf2fb51d6 100644 --- a/arch/microblaze/include/asm/dma-mapping.h +++ b/arch/microblaze/include/asm/dma-mapping.h @@ -36,9 +36,9 @@ /* * Available generic sets of operations */ -extern struct dma_map_ops dma_direct_ops; +extern const struct dma_map_ops dma_direct_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) { return &dma_direct_ops; } diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c index 818daf230eb4..12e093a03e60 100644 --- a/arch/microblaze/kernel/dma.c +++ b/arch/microblaze/kernel/dma.c @@ -187,7 +187,7 @@ int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma, #endif } -struct dma_map_ops dma_direct_ops = { +const struct dma_map_ops dma_direct_ops = { .alloc = dma_direct_alloc_coherent, .free = dma_direct_free_coherent, .mmap = dma_direct_mmap_coherent, diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c index fd69528b24fb..897d32c888ee 100644 --- a/arch/mips/cavium-octeon/dma-octeon.c +++ b/arch/mips/cavium-octeon/dma-octeon.c @@ -205,7 +205,7 @@ static phys_addr_t octeon_unity_dma_to_phys(struct device *dev, dma_addr_t daddr } struct octeon_dma_map_ops { - struct dma_map_ops dma_map_ops; + const struct dma_map_ops dma_map_ops; dma_addr_t (*phys_to_dma)(struct device *dev, phys_addr_t paddr); phys_addr_t (*dma_to_phys)(struct device *dev, dma_addr_t daddr); }; @@ -333,7 +333,7 @@ static struct octeon_dma_map_ops _octeon_pci_dma_map_ops = { }, }; -struct dma_map_ops *octeon_pci_dma_map_ops; +const struct dma_map_ops *octeon_pci_dma_map_ops; void __init octeon_pci_dma_init(void) { diff --git a/arch/mips/include/asm/device.h b/arch/mips/include/asm/device.h index 21c2082a0dfb..ebc5c1265473 100644 --- a/arch/mips/include/asm/device.h +++ b/arch/mips/include/asm/device.h @@ -10,7 +10,7 @@ struct dma_map_ops; struct dev_archdata { /* DMA operations on that device */ - struct dma_map_ops *dma_ops; + const struct dma_map_ops *dma_ops; #ifdef CONFIG_DMA_PERDEV_COHERENT /* Non-zero if DMA is coherent with CPU caches */ diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h index 7aa71b9b0258..b59b084a7569 100644 --- a/arch/mips/include/asm/dma-mapping.h +++ b/arch/mips/include/asm/dma-mapping.h @@ -9,9 +9,9 @@ #include #endif -extern struct dma_map_ops *mips_dma_map_ops; +extern const struct dma_map_ops *mips_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; diff --git a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h index 460042ee5d6f..9110988b92a1 100644 --- a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h +++ b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h @@ -65,7 +65,7 @@ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr); phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr); struct dma_map_ops; -extern struct dma_map_ops *octeon_pci_dma_map_ops; +extern const struct dma_map_ops *octeon_pci_dma_map_ops; extern char *octeon_swiotlb; #endif /* __ASM_MACH_CAVIUM_OCTEON_DMA_COHERENCE_H */ diff --git a/arch/mips/include/asm/netlogic/common.h b/arch/mips/include/asm/netlogic/common.h index be52c2125d71..e0717d10e650 100644 --- a/arch/mips/include/asm/netlogic/common.h +++ b/arch/mips/include/asm/netlogic/common.h @@ -88,7 +88,7 @@ extern struct plat_smp_ops nlm_smp_ops; extern char nlm_reset_entry[], nlm_reset_entry_end[]; /* SWIOTLB */ -extern struct dma_map_ops nlm_swiotlb_dma_ops; +extern const struct dma_map_ops nlm_swiotlb_dma_ops; extern unsigned int nlm_threads_per_core; extern cpumask_t nlm_cpumask; diff --git a/arch/mips/loongson64/common/dma-swiotlb.c b/arch/mips/loongson64/common/dma-swiotlb.c index aab4fd681e1f..7296df043d92 100644 --- a/arch/mips/loongson64/common/dma-swiotlb.c +++ b/arch/mips/loongson64/common/dma-swiotlb.c @@ -122,7 +122,7 @@ phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr) return daddr; } -static struct dma_map_ops loongson_dma_map_ops = { +static const struct dma_map_ops loongson_dma_map_ops = { .alloc = loongson_dma_alloc_coherent, .free = loongson_dma_free_coherent, .map_page = loongson_dma_map_page, diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c index a39c36af97ad..1cb84472cb58 100644 --- a/arch/mips/mm/dma-default.c +++ b/arch/mips/mm/dma-default.c @@ -417,7 +417,7 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size, EXPORT_SYMBOL(dma_cache_sync); -static struct dma_map_ops mips_default_dma_map_ops = { +static const struct dma_map_ops mips_default_dma_map_ops = { .alloc = mips_dma_alloc_coherent, .free = mips_dma_free_coherent, .mmap = mips_dma_mmap, @@ -433,7 +433,7 @@ static struct dma_map_ops mips_default_dma_map_ops = { .dma_supported = mips_dma_supported }; -struct dma_map_ops *mips_dma_map_ops = &mips_default_dma_map_ops; +const struct dma_map_ops *mips_dma_map_ops = &mips_default_dma_map_ops; EXPORT_SYMBOL(mips_dma_map_ops); #define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16) diff --git a/arch/mips/netlogic/common/nlm-dma.c b/arch/mips/netlogic/common/nlm-dma.c index 0630693bec2a..0ec9d9da6d51 100644 --- a/arch/mips/netlogic/common/nlm-dma.c +++ b/arch/mips/netlogic/common/nlm-dma.c @@ -67,7 +67,7 @@ static void nlm_dma_free_coherent(struct device *dev, size_t size, swiotlb_free_coherent(dev, size, vaddr, dma_handle); } -struct dma_map_ops nlm_swiotlb_dma_ops = { +const struct dma_map_ops nlm_swiotlb_dma_ops = { .alloc = nlm_dma_alloc_coherent, .free = nlm_dma_free_coherent, .map_page = swiotlb_map_page, diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h index 1dcd44757f32..564e3927e005 100644 --- a/arch/mn10300/include/asm/dma-mapping.h +++ b/arch/mn10300/include/asm/dma-mapping.h @@ -14,9 +14,9 @@ #include #include -extern struct dma_map_ops mn10300_dma_ops; +extern const struct dma_map_ops mn10300_dma_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) { return &mn10300_dma_ops; } diff --git a/arch/mn10300/mm/dma-alloc.c b/arch/mn10300/mm/dma-alloc.c index 4f4b9029f0ea..86108d2496b3 100644 --- a/arch/mn10300/mm/dma-alloc.c +++ b/arch/mn10300/mm/dma-alloc.c @@ -121,7 +121,7 @@ static int mn10300_dma_supported(struct device *dev, u64 mask) return 1; } -struct dma_map_ops mn10300_dma_ops = { +const struct dma_map_ops mn10300_dma_ops = { .alloc = mn10300_dma_alloc, .free = mn10300_dma_free, .map_page = mn10300_dma_map_page, diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h index bec8ac8e6ad2..aa00d839a64b 100644 --- a/arch/nios2/include/asm/dma-mapping.h +++ b/arch/nios2/include/asm/dma-mapping.h @@ -10,9 +10,9 @@ #ifndef _ASM_NIOS2_DMA_MAPPING_H #define _ASM_NIOS2_DMA_MAPPING_H -extern struct dma_map_ops nios2_dma_ops; +extern const struct dma_map_ops nios2_dma_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) { return &nios2_dma_ops; } diff --git a/arch/nios2/mm/dma-mapping.c b/arch/nios2/mm/dma-mapping.c index f6a5dcf9d682..7040c1adbb5e 100644 --- a/arch/nios2/mm/dma-mapping.c +++ b/arch/nios2/mm/dma-mapping.c @@ -192,7 +192,7 @@ static void nios2_dma_sync_sg_for_device(struct device *dev, } -struct dma_map_ops nios2_dma_ops = { +const struct dma_map_ops nios2_dma_ops = { .alloc = nios2_dma_alloc, .free = nios2_dma_free, .map_page = nios2_dma_map_page, diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h index 1f260bccb368..88acbedb4947 100644 --- a/arch/openrisc/include/asm/dma-mapping.h +++ b/arch/openrisc/include/asm/dma-mapping.h @@ -28,9 +28,9 @@ #define DMA_ERROR_CODE (~(dma_addr_t)0x0) -extern struct dma_map_ops or1k_dma_map_ops; +extern const struct dma_map_ops or1k_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) { return &or1k_dma_map_ops; } diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c index 906998bac957..b10369b7e31b 100644 --- a/arch/openrisc/kernel/dma.c +++ b/arch/openrisc/kernel/dma.c @@ -232,7 +232,7 @@ or1k_sync_single_for_device(struct device *dev, mtspr(SPR_DCBFR, cl); } -struct dma_map_ops or1k_dma_map_ops = { +const struct dma_map_ops or1k_dma_map_ops = { .alloc = or1k_dma_alloc, .free = or1k_dma_free, .map_page = or1k_map_page, diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h index 16e024602737..1749073e44fc 100644 --- a/arch/parisc/include/asm/dma-mapping.h +++ b/arch/parisc/include/asm/dma-mapping.h @@ -21,13 +21,13 @@ */ #ifdef CONFIG_PA11 -extern struct dma_map_ops pcxl_dma_ops; -extern struct dma_map_ops pcx_dma_ops; +extern const struct dma_map_ops pcxl_dma_ops; +extern const struct dma_map_ops pcx_dma_ops; #endif -extern struct dma_map_ops *hppa_dma_ops; +extern const struct dma_map_ops *hppa_dma_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) { return hppa_dma_ops; } diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c index 700e2d2da096..fa78419100c8 100644 --- a/arch/parisc/kernel/drivers.c +++ b/arch/parisc/kernel/drivers.c @@ -40,7 +40,7 @@ #include /* See comments in include/asm-parisc/pci.h */ -struct dma_map_ops *hppa_dma_ops __read_mostly; +const struct dma_map_ops *hppa_dma_ops __read_mostly; EXPORT_SYMBOL(hppa_dma_ops); static struct device root = { diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c index 697c53543a4d..5f0067a62738 100644 --- a/arch/parisc/kernel/pci-dma.c +++ b/arch/parisc/kernel/pci-dma.c @@ -572,7 +572,7 @@ static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist * flush_kernel_vmap_range(sg_virt(sg), sg->length); } -struct dma_map_ops pcxl_dma_ops = { +const struct dma_map_ops pcxl_dma_ops = { .dma_supported = pa11_dma_supported, .alloc = pa11_dma_alloc, .free = pa11_dma_free, @@ -608,7 +608,7 @@ static void pcx_dma_free(struct device *dev, size_t size, void *vaddr, return; } -struct dma_map_ops pcx_dma_ops = { +const struct dma_map_ops pcx_dma_ops = { .dma_supported = pa11_dma_supported, .alloc = pcx_dma_alloc, .free = pcx_dma_free, diff --git a/arch/powerpc/include/asm/device.h b/arch/powerpc/include/asm/device.h index 406c2b1ff82d..49cbb0fca233 100644 --- a/arch/powerpc/include/asm/device.h +++ b/arch/powerpc/include/asm/device.h @@ -21,7 +21,7 @@ struct iommu_table; */ struct dev_archdata { /* DMA operations on that device */ - struct dma_map_ops *dma_ops; + const struct dma_map_ops *dma_ops; /* * These two used to be a union. However, with the hybrid ops we need diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index 84e3f8dd5e4f..2ec3eadf336f 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -76,9 +76,9 @@ static inline unsigned long device_to_mask(struct device *dev) #ifdef CONFIG_PPC64 extern struct dma_map_ops dma_iommu_ops; #endif -extern struct dma_map_ops dma_direct_ops; +extern const struct dma_map_ops dma_direct_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) { /* We don't handle the NULL dev case for ISA for now. We could * do it via an out of line call but it is not needed for now. The @@ -91,7 +91,7 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev) return dev->archdata.dma_ops; } -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; } diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h index e9bd6cf0212f..93eded8d3843 100644 --- a/arch/powerpc/include/asm/pci.h +++ b/arch/powerpc/include/asm/pci.h @@ -53,8 +53,8 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) } #ifdef CONFIG_PCI -extern void set_pci_dma_ops(struct dma_map_ops *dma_ops); -extern struct dma_map_ops *get_pci_dma_ops(void); +extern void set_pci_dma_ops(const struct dma_map_ops *dma_ops); +extern const struct dma_map_ops *get_pci_dma_ops(void); #else /* CONFIG_PCI */ #define set_pci_dma_ops(d) #define get_pci_dma_ops() NULL diff --git a/arch/powerpc/include/asm/swiotlb.h b/arch/powerpc/include/asm/swiotlb.h index de99d6e29430..01d45a5fd00b 100644 --- a/arch/powerpc/include/asm/swiotlb.h +++ b/arch/powerpc/include/asm/swiotlb.h @@ -13,7 +13,7 @@ #include -extern struct dma_map_ops swiotlb_dma_ops; +extern const struct dma_map_ops swiotlb_dma_ops; static inline void dma_mark_clean(void *addr, size_t size) {} diff --git a/arch/powerpc/kernel/dma-swiotlb.c b/arch/powerpc/kernel/dma-swiotlb.c index c6689f658b50..d0ea7860e02b 100644 --- a/arch/powerpc/kernel/dma-swiotlb.c +++ b/arch/powerpc/kernel/dma-swiotlb.c @@ -46,7 +46,7 @@ static u64 swiotlb_powerpc_get_required(struct device *dev) * map_page, and unmap_page on highmem, use normal dma_ops * for everything else. */ -struct dma_map_ops swiotlb_dma_ops = { +const struct dma_map_ops swiotlb_dma_ops = { .alloc = __dma_direct_alloc_coherent, .free = __dma_direct_free_coherent, .mmap = dma_direct_mmap_coherent, diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c index 6877e3fa95bb..03b98f1f98ec 100644 --- a/arch/powerpc/kernel/dma.c +++ b/arch/powerpc/kernel/dma.c @@ -274,7 +274,7 @@ static inline void dma_direct_sync_single(struct device *dev, } #endif -struct dma_map_ops dma_direct_ops = { +const struct dma_map_ops dma_direct_ops = { .alloc = dma_direct_alloc_coherent, .free = dma_direct_free_coherent, .mmap = dma_direct_mmap_coherent, @@ -316,7 +316,7 @@ EXPORT_SYMBOL(dma_set_coherent_mask); int __dma_set_mask(struct device *dev, u64 dma_mask) { - struct dma_map_ops *dma_ops = get_dma_ops(dev); + const struct dma_map_ops *dma_ops = get_dma_ops(dev); if ((dma_ops != NULL) && (dma_ops->set_dma_mask != NULL)) return dma_ops->set_dma_mask(dev, dma_mask); @@ -344,7 +344,7 @@ EXPORT_SYMBOL(dma_set_mask); u64 __dma_get_required_mask(struct device *dev) { - struct dma_map_ops *dma_ops = get_dma_ops(dev); + const struct dma_map_ops *dma_ops = get_dma_ops(dev); if (unlikely(dma_ops == NULL)) return 0; diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 74bec5498972..09db4778435c 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -59,14 +59,14 @@ resource_size_t isa_mem_base; EXPORT_SYMBOL(isa_mem_base); -static struct dma_map_ops *pci_dma_ops = &dma_direct_ops; +static const struct dma_map_ops *pci_dma_ops = &dma_direct_ops; -void set_pci_dma_ops(struct dma_map_ops *dma_ops) +void set_pci_dma_ops(const struct dma_map_ops *dma_ops) { pci_dma_ops = dma_ops; } -struct dma_map_ops *get_pci_dma_ops(void) +const struct dma_map_ops *get_pci_dma_ops(void) { return pci_dma_ops; } diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index 7ff51f96a00e..e1413e69e5fe 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -651,7 +651,7 @@ static int dma_fixed_dma_supported(struct device *dev, u64 mask) static int dma_set_mask_and_switch(struct device *dev, u64 dma_mask); -static struct dma_map_ops dma_iommu_fixed_ops = { +static const struct dma_map_ops dma_iommu_fixed_ops = { .alloc = dma_fixed_alloc_coherent, .free = dma_fixed_free_coherent, .map_sg = dma_fixed_map_sg, @@ -1172,7 +1172,7 @@ __setup("iommu_fixed=", setup_iommu_fixed); static u64 cell_dma_get_required_mask(struct device *dev) { - struct dma_map_ops *dma_ops; + const struct dma_map_ops *dma_ops; if (!dev->dma_mask) return 0; diff --git a/arch/powerpc/platforms/powernv/npu-dma.c b/arch/powerpc/platforms/powernv/npu-dma.c index 73b155fd4481..1c383f38031d 100644 --- a/arch/powerpc/platforms/powernv/npu-dma.c +++ b/arch/powerpc/platforms/powernv/npu-dma.c @@ -115,7 +115,7 @@ static u64 dma_npu_get_required_mask(struct device *dev) return 0; } -static struct dma_map_ops dma_npu_ops = { +static const struct dma_map_ops dma_npu_ops = { .map_page = dma_npu_map_page, .map_sg = dma_npu_map_sg, .alloc = dma_npu_alloc, diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c index 8af1c15aef85..c81450d98794 100644 --- a/arch/powerpc/platforms/ps3/system-bus.c +++ b/arch/powerpc/platforms/ps3/system-bus.c @@ -701,7 +701,7 @@ static u64 ps3_dma_get_required_mask(struct device *_dev) return DMA_BIT_MASK(32); } -static struct dma_map_ops ps3_sb_dma_ops = { +static const struct dma_map_ops ps3_sb_dma_ops = { .alloc = ps3_alloc_coherent, .free = ps3_free_coherent, .map_sg = ps3_sb_map_sg, @@ -712,7 +712,7 @@ static struct dma_map_ops ps3_sb_dma_ops = { .unmap_page = ps3_unmap_page, }; -static struct dma_map_ops ps3_ioc0_dma_ops = { +static const struct dma_map_ops ps3_ioc0_dma_ops = { .alloc = ps3_alloc_coherent, .free = ps3_free_coherent, .map_sg = ps3_ioc0_map_sg, diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c index 614c28537141..2e36a0b8944a 100644 --- a/arch/powerpc/platforms/pseries/ibmebus.c +++ b/arch/powerpc/platforms/pseries/ibmebus.c @@ -136,7 +136,7 @@ static u64 ibmebus_dma_get_required_mask(struct device *dev) return DMA_BIT_MASK(64); } -static struct dma_map_ops ibmebus_dma_ops = { +static const struct dma_map_ops ibmebus_dma_ops = { .alloc = ibmebus_alloc_coherent, .free = ibmebus_free_coherent, .map_sg = ibmebus_map_sg, diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c index 2c8fb3ec989e..720493932486 100644 --- a/arch/powerpc/platforms/pseries/vio.c +++ b/arch/powerpc/platforms/pseries/vio.c @@ -615,7 +615,7 @@ static u64 vio_dma_get_required_mask(struct device *dev) return dma_iommu_ops.get_required_mask(dev); } -static struct dma_map_ops vio_dma_mapping_ops = { +static const struct dma_map_ops vio_dma_mapping_ops = { .alloc = vio_dma_iommu_alloc_coherent, .free = vio_dma_iommu_free_coherent, .mmap = dma_direct_mmap_coherent, diff --git a/arch/s390/include/asm/device.h b/arch/s390/include/asm/device.h index 4a9f35e0973f..7955a9799466 100644 --- a/arch/s390/include/asm/device.h +++ b/arch/s390/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/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h index ffaba07f50ab..2776d205b1ff 100644 --- a/arch/s390/include/asm/dma-mapping.h +++ b/arch/s390/include/asm/dma-mapping.h @@ -10,9 +10,9 @@ #define DMA_ERROR_CODE (~(dma_addr_t) 0x0) -extern struct dma_map_ops s390_pci_dma_ops; +extern const struct dma_map_ops s390_pci_dma_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; diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c index 1d7a9c71944a..9081a57fa340 100644 --- a/arch/s390/pci/pci_dma.c +++ b/arch/s390/pci/pci_dma.c @@ -650,7 +650,7 @@ static int __init dma_debug_do_init(void) } fs_initcall(dma_debug_do_init); -struct dma_map_ops s390_pci_dma_ops = { +const struct dma_map_ops s390_pci_dma_ops = { .alloc = s390_dma_alloc, .free = s390_dma_free, .map_sg = s390_dma_map_sg, diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h index 0052ad40e86d..a7382c34c241 100644 --- a/arch/sh/include/asm/dma-mapping.h +++ b/arch/sh/include/asm/dma-mapping.h @@ -1,10 +1,10 @@ #ifndef __ASM_SH_DMA_MAPPING_H #define __ASM_SH_DMA_MAPPING_H -extern struct dma_map_ops *dma_ops; +extern const struct dma_map_ops *dma_ops; extern void no_iommu_init(void); -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) { return dma_ops; } diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c index 47fee3b6e29c..d24c707b2181 100644 --- a/arch/sh/kernel/dma-nommu.c +++ b/arch/sh/kernel/dma-nommu.c @@ -65,7 +65,7 @@ static void nommu_sync_sg(struct device *dev, struct scatterlist *sg, } #endif -struct dma_map_ops nommu_dma_ops = { +const struct dma_map_ops nommu_dma_ops = { .alloc = dma_generic_alloc_coherent, .free = dma_generic_free_coherent, .map_page = nommu_map_page, diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c index 92b6976fde59..d1275adfa0ef 100644 --- a/arch/sh/mm/consistent.c +++ b/arch/sh/mm/consistent.c @@ -22,7 +22,7 @@ #define PREALLOC_DMA_DEBUG_ENTRIES 4096 -struct dma_map_ops *dma_ops; +const struct dma_map_ops *dma_ops; EXPORT_SYMBOL(dma_ops); static int __init dma_init(void) diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h index 1180ae254154..3d2babc0c4c6 100644 --- a/arch/sparc/include/asm/dma-mapping.h +++ b/arch/sparc/include/asm/dma-mapping.h @@ -18,13 +18,13 @@ static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, */ } -extern struct dma_map_ops *dma_ops; -extern struct dma_map_ops *leon_dma_ops; -extern struct dma_map_ops pci32_dma_ops; +extern const struct dma_map_ops *dma_ops; +extern const struct dma_map_ops *leon_dma_ops; +extern const struct dma_map_ops pci32_dma_ops; extern struct bus_type pci_bus_type; -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) { #ifdef CONFIG_SPARC_LEON if (sparc_cpu_model == sparc_leon) diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c index 9df997995f6b..c63ba99ca551 100644 --- a/arch/sparc/kernel/iommu.c +++ b/arch/sparc/kernel/iommu.c @@ -741,7 +741,7 @@ static void dma_4u_sync_sg_for_cpu(struct device *dev, spin_unlock_irqrestore(&iommu->lock, flags); } -static struct dma_map_ops sun4u_dma_ops = { +static const struct dma_map_ops sun4u_dma_ops = { .alloc = dma_4u_alloc_coherent, .free = dma_4u_free_coherent, .map_page = dma_4u_map_page, @@ -752,7 +752,7 @@ static struct dma_map_ops sun4u_dma_ops = { .sync_sg_for_cpu = dma_4u_sync_sg_for_cpu, }; -struct dma_map_ops *dma_ops = &sun4u_dma_ops; +const struct dma_map_ops *dma_ops = &sun4u_dma_ops; EXPORT_SYMBOL(dma_ops); int dma_supported(struct device *dev, u64 device_mask) diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index 6ffaec44931a..cf20033a1458 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -401,7 +401,7 @@ static void sbus_sync_sg_for_device(struct device *dev, struct scatterlist *sg, BUG(); } -static struct dma_map_ops sbus_dma_ops = { +static const struct dma_map_ops sbus_dma_ops = { .alloc = sbus_alloc_coherent, .free = sbus_free_coherent, .map_page = sbus_map_page, @@ -637,7 +637,7 @@ static void pci32_sync_sg_for_device(struct device *device, struct scatterlist * } } -struct dma_map_ops pci32_dma_ops = { +const struct dma_map_ops pci32_dma_ops = { .alloc = pci32_alloc_coherent, .free = pci32_free_coherent, .map_page = pci32_map_page, @@ -652,10 +652,10 @@ struct dma_map_ops pci32_dma_ops = { EXPORT_SYMBOL(pci32_dma_ops); /* leon re-uses pci32_dma_ops */ -struct dma_map_ops *leon_dma_ops = &pci32_dma_ops; +const struct dma_map_ops *leon_dma_ops = &pci32_dma_ops; EXPORT_SYMBOL(leon_dma_ops); -struct dma_map_ops *dma_ops = &sbus_dma_ops; +const struct dma_map_ops *dma_ops = &sbus_dma_ops; EXPORT_SYMBOL(dma_ops); diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c index f4daccd12bf5..68bec7c97cb8 100644 --- a/arch/sparc/kernel/pci_sun4v.c +++ b/arch/sparc/kernel/pci_sun4v.c @@ -669,7 +669,7 @@ static void dma_4v_unmap_sg(struct device *dev, struct scatterlist *sglist, local_irq_restore(flags); } -static struct dma_map_ops sun4v_dma_ops = { +static const struct dma_map_ops sun4v_dma_ops = { .alloc = dma_4v_alloc_coherent, .free = dma_4v_free_coherent, .map_page = dma_4v_map_page, 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; } diff --git a/arch/tile/kernel/pci-dma.c b/arch/tile/kernel/pci-dma.c index 24e0f8c21f2f..569bb6dd154a 100644 --- a/arch/tile/kernel/pci-dma.c +++ b/arch/tile/kernel/pci-dma.c @@ -329,7 +329,7 @@ tile_dma_supported(struct device *dev, u64 mask) return 1; } -static struct dma_map_ops tile_default_dma_map_ops = { +static const struct dma_map_ops tile_default_dma_map_ops = { .alloc = tile_dma_alloc_coherent, .free = tile_dma_free_coherent, .map_page = tile_dma_map_page, @@ -344,7 +344,7 @@ static struct dma_map_ops tile_default_dma_map_ops = { .dma_supported = tile_dma_supported }; -struct dma_map_ops *tile_dma_map_ops = &tile_default_dma_map_ops; +const struct dma_map_ops *tile_dma_map_ops = &tile_default_dma_map_ops; EXPORT_SYMBOL(tile_dma_map_ops); /* Generic PCI DMA mapping functions */ @@ -516,7 +516,7 @@ tile_pci_dma_supported(struct device *dev, u64 mask) return 1; } -static struct dma_map_ops tile_pci_default_dma_map_ops = { +static const struct dma_map_ops tile_pci_default_dma_map_ops = { .alloc = tile_pci_dma_alloc_coherent, .free = tile_pci_dma_free_coherent, .map_page = tile_pci_dma_map_page, @@ -531,7 +531,7 @@ static struct dma_map_ops tile_pci_default_dma_map_ops = { .dma_supported = tile_pci_dma_supported }; -struct dma_map_ops *gx_pci_dma_map_ops = &tile_pci_default_dma_map_ops; +const struct dma_map_ops *gx_pci_dma_map_ops = &tile_pci_default_dma_map_ops; EXPORT_SYMBOL(gx_pci_dma_map_ops); /* PCI DMA mapping functions for legacy PCI devices */ @@ -552,7 +552,7 @@ static void tile_swiotlb_free_coherent(struct device *dev, size_t size, swiotlb_free_coherent(dev, size, vaddr, dma_addr); } -static struct dma_map_ops pci_swiotlb_dma_ops = { +static const struct dma_map_ops pci_swiotlb_dma_ops = { .alloc = tile_swiotlb_alloc_coherent, .free = tile_swiotlb_free_coherent, .map_page = swiotlb_map_page, @@ -567,7 +567,7 @@ static struct dma_map_ops pci_swiotlb_dma_ops = { .mapping_error = swiotlb_dma_mapping_error, }; -static struct dma_map_ops pci_hybrid_dma_ops = { +static const struct dma_map_ops pci_hybrid_dma_ops = { .alloc = tile_swiotlb_alloc_coherent, .free = tile_swiotlb_free_coherent, .map_page = tile_pci_dma_map_page, @@ -582,18 +582,18 @@ static struct dma_map_ops pci_hybrid_dma_ops = { .dma_supported = tile_pci_dma_supported }; -struct dma_map_ops *gx_legacy_pci_dma_map_ops = &pci_swiotlb_dma_ops; -struct dma_map_ops *gx_hybrid_pci_dma_map_ops = &pci_hybrid_dma_ops; +const struct dma_map_ops *gx_legacy_pci_dma_map_ops = &pci_swiotlb_dma_ops; +const struct dma_map_ops *gx_hybrid_pci_dma_map_ops = &pci_hybrid_dma_ops; #else -struct dma_map_ops *gx_legacy_pci_dma_map_ops; -struct dma_map_ops *gx_hybrid_pci_dma_map_ops; +const struct dma_map_ops *gx_legacy_pci_dma_map_ops; +const struct dma_map_ops *gx_hybrid_pci_dma_map_ops; #endif EXPORT_SYMBOL(gx_legacy_pci_dma_map_ops); EXPORT_SYMBOL(gx_hybrid_pci_dma_map_ops); int dma_set_mask(struct device *dev, u64 mask) { - struct dma_map_ops *dma_ops = get_dma_ops(dev); + const struct dma_map_ops *dma_ops = get_dma_ops(dev); /* * For PCI devices with 64-bit DMA addressing capability, promote @@ -623,7 +623,7 @@ EXPORT_SYMBOL(dma_set_mask); #ifdef CONFIG_ARCH_HAS_DMA_SET_COHERENT_MASK int dma_set_coherent_mask(struct device *dev, u64 mask) { - struct dma_map_ops *dma_ops = get_dma_ops(dev); + const struct dma_map_ops *dma_ops = get_dma_ops(dev); /* * For PCI devices with 64-bit DMA addressing capability, promote diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h index 4749854afd03..14d7729c7b73 100644 --- a/arch/unicore32/include/asm/dma-mapping.h +++ b/arch/unicore32/include/asm/dma-mapping.h @@ -21,9 +21,9 @@ #include #include -extern struct dma_map_ops swiotlb_dma_map_ops; +extern const struct dma_map_ops swiotlb_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) { return &swiotlb_dma_map_ops; } diff --git a/arch/unicore32/mm/dma-swiotlb.c b/arch/unicore32/mm/dma-swiotlb.c index 3e9f6489ba38..525413d6690e 100644 --- a/arch/unicore32/mm/dma-swiotlb.c +++ b/arch/unicore32/mm/dma-swiotlb.c @@ -31,7 +31,7 @@ static void unicore_swiotlb_free_coherent(struct device *dev, size_t size, swiotlb_free_coherent(dev, size, vaddr, dma_addr); } -struct dma_map_ops swiotlb_dma_map_ops = { +const struct dma_map_ops swiotlb_dma_map_ops = { .alloc = unicore_swiotlb_alloc_coherent, .free = unicore_swiotlb_free_coherent, .map_sg = swiotlb_map_sg_attrs, diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h index 684ed6c3aa67..b2d0b4ced7e3 100644 --- a/arch/x86/include/asm/device.h +++ b/arch/x86/include/asm/device.h @@ -3,7 +3,7 @@ struct dev_archdata { #ifdef CONFIG_X86_DEV_DMA_OPS - struct dma_map_ops *dma_ops; + const struct dma_map_ops *dma_ops; #endif #if defined(CONFIG_INTEL_IOMMU) || defined(CONFIG_AMD_IOMMU) void *iommu; /* hook for IOMMU specific extension */ @@ -13,7 +13,7 @@ struct dev_archdata { #if defined(CONFIG_X86_DEV_DMA_OPS) && defined(CONFIG_PCI_DOMAINS) struct dma_domain { struct list_head node; - struct dma_map_ops *dma_ops; + const struct dma_map_ops *dma_ops; int domain_nr; }; void add_dma_domain(struct dma_domain *domain); diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h index 44461626830e..5e4772886a1e 100644 --- a/arch/x86/include/asm/dma-mapping.h +++ b/arch/x86/include/asm/dma-mapping.h @@ -25,9 +25,9 @@ extern int iommu_merge; extern struct device x86_dma_fallback_dev; extern int panic_on_overflow; -extern struct dma_map_ops *dma_ops; +extern const struct dma_map_ops *dma_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) { #ifndef CONFIG_X86_DEV_DMA_OPS return dma_ops; diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h index 345c99cef152..793869879464 100644 --- a/arch/x86/include/asm/iommu.h +++ b/arch/x86/include/asm/iommu.h @@ -1,7 +1,7 @@ #ifndef _ASM_X86_IOMMU_H #define _ASM_X86_IOMMU_H -extern struct dma_map_ops nommu_dma_ops; +extern const struct dma_map_ops nommu_dma_ops; extern int force_iommu, no_iommu; extern int iommu_detected; extern int iommu_pass_through; diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c index 63ff468a7986..82dfe32faaf4 100644 --- a/arch/x86/kernel/amd_gart_64.c +++ b/arch/x86/kernel/amd_gart_64.c @@ -695,7 +695,7 @@ static __init int init_amd_gatt(struct agp_kern_info *info) return -1; } -static struct dma_map_ops gart_dma_ops = { +static const struct dma_map_ops gart_dma_ops = { .map_sg = gart_map_sg, .unmap_sg = gart_unmap_sg, .map_page = gart_map_page, diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c index 5d400ba1349d..17f180148c80 100644 --- a/arch/x86/kernel/pci-calgary_64.c +++ b/arch/x86/kernel/pci-calgary_64.c @@ -478,7 +478,7 @@ static void calgary_free_coherent(struct device *dev, size_t size, free_pages((unsigned long)vaddr, get_order(size)); } -static struct dma_map_ops calgary_dma_ops = { +static const struct dma_map_ops calgary_dma_ops = { .alloc = calgary_alloc_coherent, .free = calgary_free_coherent, .map_sg = calgary_map_sg, diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index d30c37750765..76f4c039baae 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -17,7 +17,7 @@ static int forbid_dac __read_mostly; -struct dma_map_ops *dma_ops = &nommu_dma_ops; +const struct dma_map_ops *dma_ops = &nommu_dma_ops; EXPORT_SYMBOL(dma_ops); static int iommu_sac_force __read_mostly; @@ -214,7 +214,7 @@ early_param("iommu", iommu_setup); int dma_supported(struct device *dev, u64 mask) { - struct dma_map_ops *ops = get_dma_ops(dev); + const struct dma_map_ops *ops = get_dma_ops(dev); #ifdef CONFIG_PCI if (mask > 0xffffffff && forbid_dac > 0) { diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c index 00e71ce396a8..a88952ef371c 100644 --- a/arch/x86/kernel/pci-nommu.c +++ b/arch/x86/kernel/pci-nommu.c @@ -88,7 +88,7 @@ static void nommu_sync_sg_for_device(struct device *dev, flush_write_buffers(); } -struct dma_map_ops nommu_dma_ops = { +const struct dma_map_ops nommu_dma_ops = { .alloc = dma_generic_alloc_coherent, .free = dma_generic_free_coherent, .map_sg = nommu_map_sg, diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c index 410efb2c7b80..1e23577e17cf 100644 --- a/arch/x86/kernel/pci-swiotlb.c +++ b/arch/x86/kernel/pci-swiotlb.c @@ -45,7 +45,7 @@ void x86_swiotlb_free_coherent(struct device *dev, size_t size, dma_generic_free_coherent(dev, size, vaddr, dma_addr, attrs); } -static struct dma_map_ops swiotlb_dma_ops = { +static const struct dma_map_ops swiotlb_dma_ops = { .mapping_error = swiotlb_dma_mapping_error, .alloc = x86_swiotlb_alloc_coherent, .free = x86_swiotlb_free_coherent, diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c index 052c1cb76305..aa3828823170 100644 --- a/arch/x86/pci/sta2x11-fixup.c +++ b/arch/x86/pci/sta2x11-fixup.c @@ -179,7 +179,7 @@ static void *sta2x11_swiotlb_alloc_coherent(struct device *dev, } /* We have our own dma_ops: the same as swiotlb but from alloc (above) */ -static struct dma_map_ops sta2x11_dma_ops = { +static const struct dma_map_ops sta2x11_dma_ops = { .alloc = sta2x11_swiotlb_alloc_coherent, .free = x86_swiotlb_free_coherent, .map_page = swiotlb_map_page, diff --git a/arch/x86/xen/pci-swiotlb-xen.c b/arch/x86/xen/pci-swiotlb-xen.c index a0b36a9d5df1..42b08f8fc2ca 100644 --- a/arch/x86/xen/pci-swiotlb-xen.c +++ b/arch/x86/xen/pci-swiotlb-xen.c @@ -18,7 +18,7 @@ int xen_swiotlb __read_mostly; -static struct dma_map_ops xen_swiotlb_dma_ops = { +static const struct dma_map_ops xen_swiotlb_dma_ops = { .alloc = xen_swiotlb_alloc_coherent, .free = xen_swiotlb_free_coherent, .sync_single_for_cpu = xen_swiotlb_sync_single_for_cpu, diff --git a/arch/xtensa/include/asm/device.h b/arch/xtensa/include/asm/device.h index fe1f5c878493..a77d45d39f35 100644 --- a/arch/xtensa/include/asm/device.h +++ b/arch/xtensa/include/asm/device.h @@ -10,7 +10,7 @@ struct dma_map_ops; struct dev_archdata { /* DMA operations on that device */ - struct dma_map_ops *dma_ops; + const struct dma_map_ops *dma_ops; }; struct pdev_archdata { diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h index 3fc1170a6488..50d23106cce0 100644 --- a/arch/xtensa/include/asm/dma-mapping.h +++ b/arch/xtensa/include/asm/dma-mapping.h @@ -18,9 +18,9 @@ #define DMA_ERROR_CODE (~(dma_addr_t)0x0) -extern struct dma_map_ops xtensa_dma_map_ops; +extern const struct dma_map_ops xtensa_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; diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c index 70e362e6038e..ecec5265a66d 100644 --- a/arch/xtensa/kernel/pci-dma.c +++ b/arch/xtensa/kernel/pci-dma.c @@ -249,7 +249,7 @@ int xtensa_dma_mapping_error(struct device *dev, dma_addr_t dma_addr) return 0; } -struct dma_map_ops xtensa_dma_map_ops = { +const struct dma_map_ops xtensa_dma_map_ops = { .alloc = xtensa_dma_alloc, .free = xtensa_dma_free, .map_page = xtensa_map_page, -- cgit v1.2.3-58-ga151 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/arm/include/asm/device.h | 1 - arch/arm/include/asm/dma-mapping.h | 6 +++--- arch/arm64/include/asm/device.h | 1 - arch/arm64/include/asm/dma-mapping.h | 4 ++-- arch/arm64/mm/dma-mapping.c | 8 ++++---- arch/m32r/include/asm/device.h | 1 - arch/m32r/include/asm/dma-mapping.h | 4 ++-- arch/mips/include/asm/device.h | 5 ----- arch/mips/include/asm/dma-mapping.h | 4 ++-- arch/mips/pci/pci-octeon.c | 2 +- arch/powerpc/include/asm/device.h | 4 ---- arch/powerpc/include/asm/dma-mapping.h | 4 ++-- arch/powerpc/kernel/dma.c | 2 +- arch/powerpc/platforms/cell/iommu.c | 2 +- arch/powerpc/platforms/pasemi/iommu.c | 2 +- arch/powerpc/platforms/pasemi/setup.c | 2 +- arch/powerpc/platforms/ps3/system-bus.c | 4 ++-- arch/powerpc/platforms/pseries/ibmebus.c | 2 +- arch/s390/include/asm/device.h | 1 - arch/s390/include/asm/dma-mapping.h | 4 ++-- arch/s390/pci/pci.c | 2 +- arch/tile/include/asm/device.h | 3 --- arch/tile/include/asm/dma-mapping.h | 6 +++--- arch/x86/include/asm/device.h | 3 --- arch/x86/include/asm/dma-mapping.h | 4 ++-- arch/x86/kernel/pci-calgary_64.c | 4 ++-- arch/x86/pci/common.c | 2 +- arch/x86/pci/sta2x11-fixup.c | 8 ++++---- arch/xtensa/include/asm/device.h | 4 ---- arch/xtensa/include/asm/dma-mapping.h | 4 ++-- drivers/infiniband/ulp/srpt/ib_srpt.c | 2 +- drivers/iommu/amd_iommu.c | 6 +++--- drivers/misc/mic/bus/mic_bus.c | 2 +- drivers/misc/mic/bus/scif_bus.c | 2 +- drivers/misc/mic/bus/vop_bus.c | 2 +- include/linux/device.h | 1 + 36 files changed, 48 insertions(+), 70 deletions(-) (limited to 'arch') diff --git a/arch/arm/include/asm/device.h b/arch/arm/include/asm/device.h index d8a572f9c187..220ba207be91 100644 --- a/arch/arm/include/asm/device.h +++ b/arch/arm/include/asm/device.h @@ -7,7 +7,6 @@ #define ASMARM_DEVICE_H struct dev_archdata { - const struct dma_map_ops *dma_ops; #ifdef CONFIG_DMABOUNCE struct dmabounce_device_info *dmabounce; #endif diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 1aabd781306f..312f4d0564d6 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -18,8 +18,8 @@ extern const struct dma_map_ops arm_coherent_dma_ops; static inline const struct dma_map_ops *__generic_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 &arm_dma_ops; } @@ -34,7 +34,7 @@ static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops) { BUG_ON(!dev); - dev->archdata.dma_ops = ops; + dev->dma_ops = ops; } #define HAVE_ARCH_DMA_SUPPORTED 1 diff --git a/arch/arm64/include/asm/device.h b/arch/arm64/include/asm/device.h index 00c678cc31e1..73d5bab015eb 100644 --- a/arch/arm64/include/asm/device.h +++ b/arch/arm64/include/asm/device.h @@ -17,7 +17,6 @@ #define __ASM_DEVICE_H struct dev_archdata { - const struct dma_map_ops *dma_ops; #ifdef CONFIG_IOMMU_API void *iommu; /* private IOMMU data */ #endif diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h index 1fedb43be712..58ae36cc3b60 100644 --- a/arch/arm64/include/asm/dma-mapping.h +++ b/arch/arm64/include/asm/dma-mapping.h @@ -29,8 +29,8 @@ extern const struct dma_map_ops dummy_dma_ops; static inline const struct dma_map_ops *__generic_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; /* * We expect no ISA devices, and all other DMA masters are expected to diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c index bcef6368d48f..dbab4c6c084b 100644 --- a/arch/arm64/mm/dma-mapping.c +++ b/arch/arm64/mm/dma-mapping.c @@ -837,7 +837,7 @@ static bool do_iommu_attach(struct device *dev, const struct iommu_ops *ops, return false; } - dev->archdata.dma_ops = &iommu_dma_ops; + dev->dma_ops = &iommu_dma_ops; return true; } @@ -941,7 +941,7 @@ static void __iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, void arch_teardown_dma_ops(struct device *dev) { - dev->archdata.dma_ops = NULL; + dev->dma_ops = NULL; } #else @@ -955,8 +955,8 @@ static void __iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, const struct iommu_ops *iommu, bool coherent) { - if (!dev->archdata.dma_ops) - dev->archdata.dma_ops = &swiotlb_dma_ops; + if (!dev->dma_ops) + dev->dma_ops = &swiotlb_dma_ops; dev->archdata.dma_coherent = coherent; __iommu_setup_dma_ops(dev, dma_base, size, iommu); diff --git a/arch/m32r/include/asm/device.h b/arch/m32r/include/asm/device.h index 7955a9799466..5203fc87f080 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 99c43d2f05dc..27b1597ac563 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; } diff --git a/arch/mips/include/asm/device.h b/arch/mips/include/asm/device.h index ebc5c1265473..6aa796f1081a 100644 --- a/arch/mips/include/asm/device.h +++ b/arch/mips/include/asm/device.h @@ -6,12 +6,7 @@ #ifndef _ASM_MIPS_DEVICE_H #define _ASM_MIPS_DEVICE_H -struct dma_map_ops; - struct dev_archdata { - /* DMA operations on that device */ - const struct dma_map_ops *dma_ops; - #ifdef CONFIG_DMA_PERDEV_COHERENT /* Non-zero if DMA is coherent with CPU caches */ bool dma_coherent; diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h index b59b084a7569..dad3b09fe993 100644 --- a/arch/mips/include/asm/dma-mapping.h +++ b/arch/mips/include/asm/dma-mapping.h @@ -13,8 +13,8 @@ extern const struct dma_map_ops *mips_dma_map_ops; 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; else return mips_dma_map_ops; } diff --git a/arch/mips/pci/pci-octeon.c b/arch/mips/pci/pci-octeon.c index 308d051fc45c..9ee01936862e 100644 --- a/arch/mips/pci/pci-octeon.c +++ b/arch/mips/pci/pci-octeon.c @@ -167,7 +167,7 @@ int pcibios_plat_dev_init(struct pci_dev *dev) pci_write_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, dconfig); } - dev->dev.archdata.dma_ops = octeon_pci_dma_map_ops; + dev->dev.dma_ops = octeon_pci_dma_map_ops; return 0; } diff --git a/arch/powerpc/include/asm/device.h b/arch/powerpc/include/asm/device.h index 49cbb0fca233..0245bfcaac32 100644 --- a/arch/powerpc/include/asm/device.h +++ b/arch/powerpc/include/asm/device.h @@ -6,7 +6,6 @@ #ifndef _ASM_POWERPC_DEVICE_H #define _ASM_POWERPC_DEVICE_H -struct dma_map_ops; struct device_node; #ifdef CONFIG_PPC64 struct pci_dn; @@ -20,9 +19,6 @@ struct iommu_table; * drivers/macintosh/macio_asic.c */ struct dev_archdata { - /* DMA operations on that device */ - const struct dma_map_ops *dma_ops; - /* * These two used to be a union. However, with the hybrid ops we need * both so here we store both a DMA offset for direct mappings and diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index 2ec3eadf336f..59fbd4abcbf8 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -88,12 +88,12 @@ static inline const struct dma_map_ops *get_dma_ops(struct device *dev) if (unlikely(dev == NULL)) return NULL; - return dev->archdata.dma_ops; + return dev->dma_ops; } static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops) { - dev->archdata.dma_ops = ops; + dev->dma_ops = ops; } /* diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c index 03b98f1f98ec..41c749586bd2 100644 --- a/arch/powerpc/kernel/dma.c +++ b/arch/powerpc/kernel/dma.c @@ -33,7 +33,7 @@ static u64 __maybe_unused get_pfn_limit(struct device *dev) struct dev_archdata __maybe_unused *sd = &dev->archdata; #ifdef CONFIG_SWIOTLB - if (sd->max_direct_dma_addr && sd->dma_ops == &swiotlb_dma_ops) + if (sd->max_direct_dma_addr && dev->dma_ops == &swiotlb_dma_ops) pfn = min_t(u64, pfn, sd->max_direct_dma_addr >> PAGE_SHIFT); #endif diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index e1413e69e5fe..71b995bbcae0 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -692,7 +692,7 @@ static int cell_of_bus_notify(struct notifier_block *nb, unsigned long action, return 0; /* We use the PCI DMA ops */ - dev->archdata.dma_ops = get_pci_dma_ops(); + dev->dma_ops = get_pci_dma_ops(); cell_dma_dev_setup(dev); diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c index e74adc4e7fd8..7fec04de27fc 100644 --- a/arch/powerpc/platforms/pasemi/iommu.c +++ b/arch/powerpc/platforms/pasemi/iommu.c @@ -186,7 +186,7 @@ static void pci_dma_dev_setup_pasemi(struct pci_dev *dev) */ if (dev->vendor == 0x1959 && dev->device == 0xa007 && !firmware_has_feature(FW_FEATURE_LPAR)) { - dev->dev.archdata.dma_ops = &dma_direct_ops; + dev->dev.dma_ops = &dma_direct_ops; /* * Set the coherent DMA mask to prevent the iommu * being used unnecessarily diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c index 3182400cf48f..c4a3e93dc324 100644 --- a/arch/powerpc/platforms/pasemi/setup.c +++ b/arch/powerpc/platforms/pasemi/setup.c @@ -363,7 +363,7 @@ static int pcmcia_notify(struct notifier_block *nb, unsigned long action, return 0; /* We use the direct ops for localbus */ - dev->archdata.dma_ops = &dma_direct_ops; + dev->dma_ops = &dma_direct_ops; return 0; } diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c index c81450d98794..2d2e5f80a3d3 100644 --- a/arch/powerpc/platforms/ps3/system-bus.c +++ b/arch/powerpc/platforms/ps3/system-bus.c @@ -756,11 +756,11 @@ int ps3_system_bus_device_register(struct ps3_system_bus_device *dev) switch (dev->dev_type) { case PS3_DEVICE_TYPE_IOC0: - dev->core.archdata.dma_ops = &ps3_ioc0_dma_ops; + dev->core.dma_ops = &ps3_ioc0_dma_ops; dev_set_name(&dev->core, "ioc0_%02x", ++dev_ioc0_count); break; case PS3_DEVICE_TYPE_SB: - dev->core.archdata.dma_ops = &ps3_sb_dma_ops; + dev->core.dma_ops = &ps3_sb_dma_ops; dev_set_name(&dev->core, "sb_%02x", ++dev_sb_count); break; diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c index 2e36a0b8944a..99a6bf7f3bcf 100644 --- a/arch/powerpc/platforms/pseries/ibmebus.c +++ b/arch/powerpc/platforms/pseries/ibmebus.c @@ -169,7 +169,7 @@ static int ibmebus_create_device(struct device_node *dn) return -ENOMEM; dev->dev.bus = &ibmebus_bus_type; - dev->dev.archdata.dma_ops = &ibmebus_dma_ops; + dev->dev.dma_ops = &ibmebus_dma_ops; ret = of_device_add(dev); if (ret) diff --git a/arch/s390/include/asm/device.h b/arch/s390/include/asm/device.h index 7955a9799466..5203fc87f080 100644 --- a/arch/s390/include/asm/device.h +++ b/arch/s390/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/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h index 2776d205b1ff..a872027d0c1b 100644 --- a/arch/s390/include/asm/dma-mapping.h +++ b/arch/s390/include/asm/dma-mapping.h @@ -14,8 +14,8 @@ extern const struct dma_map_ops s390_pci_dma_ops; 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; } diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index 38e17d4d9884..82abef8b8574 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -641,7 +641,7 @@ int pcibios_add_device(struct pci_dev *pdev) int i; pdev->dev.groups = zpci_attr_groups; - pdev->dev.archdata.dma_ops = &s390_pci_dma_ops; + pdev->dev.dma_ops = &s390_pci_dma_ops; zpci_map_resources(pdev); for (i = 0; i < PCI_BAR_COUNT; i++) { diff --git a/arch/tile/include/asm/device.h b/arch/tile/include/asm/device.h index 25f23ac7d361..1cf45422a0df 100644 --- a/arch/tile/include/asm/device.h +++ b/arch/tile/include/asm/device.h @@ -17,9 +17,6 @@ #define _ASM_TILE_DEVICE_H struct dev_archdata { - /* DMA operations on that device */ - 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 4a06cc75b856..c0620697eaad 100644 --- a/arch/tile/include/asm/dma-mapping.h +++ b/arch/tile/include/asm/dma-mapping.h @@ -31,8 +31,8 @@ extern const struct dma_map_ops *gx_hybrid_pci_dma_map_ops; 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; else return tile_dma_map_ops; } @@ -61,7 +61,7 @@ static inline void dma_mark_clean(void *addr, size_t size) {} static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops) { - dev->archdata.dma_ops = ops; + dev->dma_ops = ops; } static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h index b2d0b4ced7e3..1b3ef26e77df 100644 --- a/arch/x86/include/asm/device.h +++ b/arch/x86/include/asm/device.h @@ -2,9 +2,6 @@ #define _ASM_X86_DEVICE_H struct dev_archdata { -#ifdef CONFIG_X86_DEV_DMA_OPS - const struct dma_map_ops *dma_ops; -#endif #if defined(CONFIG_INTEL_IOMMU) || defined(CONFIG_AMD_IOMMU) void *iommu; /* hook for IOMMU specific extension */ #endif diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h index 5e4772886a1e..94b5b96966cb 100644 --- a/arch/x86/include/asm/dma-mapping.h +++ b/arch/x86/include/asm/dma-mapping.h @@ -32,10 +32,10 @@ static inline const struct dma_map_ops *get_dma_ops(struct device *dev) #ifndef CONFIG_X86_DEV_DMA_OPS return dma_ops; #else - if (unlikely(!dev) || !dev->archdata.dma_ops) + if (unlikely(!dev) || !dev->dma_ops) return dma_ops; else - return dev->archdata.dma_ops; + return dev->dma_ops; #endif } diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c index 17f180148c80..5070320780c6 100644 --- a/arch/x86/kernel/pci-calgary_64.c +++ b/arch/x86/kernel/pci-calgary_64.c @@ -1177,7 +1177,7 @@ static int __init calgary_init(void) tbl = find_iommu_table(&dev->dev); if (translation_enabled(tbl)) - dev->dev.archdata.dma_ops = &calgary_dma_ops; + dev->dev.dma_ops = &calgary_dma_ops; } return ret; @@ -1201,7 +1201,7 @@ error: calgary_disable_translation(dev); calgary_free_bus(dev); pci_dev_put(dev); /* Undo calgary_init_one()'s pci_dev_get() */ - dev->dev.archdata.dma_ops = NULL; + dev->dev.dma_ops = NULL; } while (1); return ret; diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index a4fdfa7dcc1b..0cb52ae0a8f0 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -667,7 +667,7 @@ static void set_dma_domain_ops(struct pci_dev *pdev) spin_lock(&dma_domain_list_lock); list_for_each_entry(domain, &dma_domain_list, node) { if (pci_domain_nr(pdev->bus) == domain->domain_nr) { - pdev->dev.archdata.dma_ops = domain->dma_ops; + pdev->dev.dma_ops = domain->dma_ops; break; } } diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c index aa3828823170..ec008e800b45 100644 --- a/arch/x86/pci/sta2x11-fixup.c +++ b/arch/x86/pci/sta2x11-fixup.c @@ -203,7 +203,7 @@ static void sta2x11_setup_pdev(struct pci_dev *pdev) return; pci_set_consistent_dma_mask(pdev, STA2X11_AMBA_SIZE - 1); pci_set_dma_mask(pdev, STA2X11_AMBA_SIZE - 1); - pdev->dev.archdata.dma_ops = &sta2x11_dma_ops; + pdev->dev.dma_ops = &sta2x11_dma_ops; /* We must enable all devices as master, for audio DMA to work */ pci_set_master(pdev); @@ -223,7 +223,7 @@ bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) { struct sta2x11_mapping *map; - if (dev->archdata.dma_ops != &sta2x11_dma_ops) { + if (dev->dma_ops != &sta2x11_dma_ops) { if (!dev->dma_mask) return false; return addr + size - 1 <= *dev->dma_mask; @@ -247,7 +247,7 @@ bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) */ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr) { - if (dev->archdata.dma_ops != &sta2x11_dma_ops) + if (dev->dma_ops != &sta2x11_dma_ops) return paddr; return p2a(paddr, to_pci_dev(dev)); } @@ -259,7 +259,7 @@ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr) */ phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr) { - if (dev->archdata.dma_ops != &sta2x11_dma_ops) + if (dev->dma_ops != &sta2x11_dma_ops) return daddr; return a2p(daddr, to_pci_dev(dev)); } diff --git a/arch/xtensa/include/asm/device.h b/arch/xtensa/include/asm/device.h index a77d45d39f35..1deeb8ebbb1b 100644 --- a/arch/xtensa/include/asm/device.h +++ b/arch/xtensa/include/asm/device.h @@ -6,11 +6,7 @@ #ifndef _ASM_XTENSA_DEVICE_H #define _ASM_XTENSA_DEVICE_H -struct dma_map_ops; - struct dev_archdata { - /* DMA operations on that device */ - const struct dma_map_ops *dma_ops; }; struct pdev_archdata { diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h index 50d23106cce0..9eecfc3c5dc4 100644 --- a/arch/xtensa/include/asm/dma-mapping.h +++ b/arch/xtensa/include/asm/dma-mapping.h @@ -22,8 +22,8 @@ extern const struct dma_map_ops xtensa_dma_map_ops; 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; else return &xtensa_dma_map_ops; } diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c index d21ba9d857c3..dfc24f19178b 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.c +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c @@ -2465,7 +2465,7 @@ static void srpt_add_one(struct ib_device *device) int i; pr_debug("device = %p, device->dma_ops = %p\n", device, - device->dma_ops); + device->dma_device->dma_ops); sdev = kzalloc(sizeof(*sdev), GFP_KERNEL); if (!sdev) diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 3703fb9db419..f7b86679bafe 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -515,7 +515,7 @@ static void iommu_uninit_device(struct device *dev) iommu_group_remove_device(dev); /* Remove dma-ops */ - dev->archdata.dma_ops = NULL; + dev->dma_ops = NULL; /* * We keep dev_data around for unplugged devices and reuse it when the @@ -2164,7 +2164,7 @@ static int amd_iommu_add_device(struct device *dev) dev_name(dev)); iommu_ignore_device(dev); - dev->archdata.dma_ops = &nommu_dma_ops; + dev->dma_ops = &nommu_dma_ops; goto out; } init_iommu_group(dev); @@ -2181,7 +2181,7 @@ static int amd_iommu_add_device(struct device *dev) if (domain->type == IOMMU_DOMAIN_IDENTITY) dev_data->passthrough = true; else - dev->archdata.dma_ops = &amd_iommu_dma_ops; + dev->dma_ops = &amd_iommu_dma_ops; out: iommu_completion_wait(iommu); diff --git a/drivers/misc/mic/bus/mic_bus.c b/drivers/misc/mic/bus/mic_bus.c index c4b27a25662a..77b16ca66846 100644 --- a/drivers/misc/mic/bus/mic_bus.c +++ b/drivers/misc/mic/bus/mic_bus.c @@ -158,7 +158,7 @@ mbus_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_ mbdev->dev.parent = pdev; mbdev->id.device = id; mbdev->id.vendor = MBUS_DEV_ANY_ID; - mbdev->dev.archdata.dma_ops = dma_ops; + mbdev->dev.dma_ops = dma_ops; mbdev->dev.dma_mask = &mbdev->dev.coherent_dma_mask; dma_set_mask(&mbdev->dev, DMA_BIT_MASK(64)); mbdev->dev.release = mbus_release_dev; diff --git a/drivers/misc/mic/bus/scif_bus.c b/drivers/misc/mic/bus/scif_bus.c index e5d377e97c86..a444db5f61fe 100644 --- a/drivers/misc/mic/bus/scif_bus.c +++ b/drivers/misc/mic/bus/scif_bus.c @@ -154,7 +154,7 @@ scif_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_ sdev->dev.parent = pdev; sdev->id.device = id; sdev->id.vendor = SCIF_DEV_ANY_ID; - sdev->dev.archdata.dma_ops = dma_ops; + sdev->dev.dma_ops = dma_ops; sdev->dev.release = scif_release_dev; sdev->hw_ops = hw_ops; sdev->dnode = dnode; diff --git a/drivers/misc/mic/bus/vop_bus.c b/drivers/misc/mic/bus/vop_bus.c index e3caa6c53922..fd7f2a6049f8 100644 --- a/drivers/misc/mic/bus/vop_bus.c +++ b/drivers/misc/mic/bus/vop_bus.c @@ -154,7 +154,7 @@ vop_register_device(struct device *pdev, int id, vdev->dev.parent = pdev; vdev->id.device = id; vdev->id.vendor = VOP_DEV_ANY_ID; - vdev->dev.archdata.dma_ops = dma_ops; + vdev->dev.dma_ops = dma_ops; vdev->dev.dma_mask = &vdev->dev.coherent_dma_mask; dma_set_mask(&vdev->dev, DMA_BIT_MASK(64)); vdev->dev.release = vop_release_dev; diff --git a/include/linux/device.h b/include/linux/device.h index 491b4c0ca633..46a567261ccc 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -921,6 +921,7 @@ struct device { #ifdef CONFIG_NUMA int numa_node; /* NUMA node this device is close to */ #endif + const struct dma_map_ops *dma_ops; u64 *dma_mask; /* dma mask (if dma'able device) */ u64 coherent_dma_mask;/* Like dma_mask, but for alloc_coherent mappings as -- cgit v1.2.3-58-ga151 From ca6e8e1031419549f67291ca31b43126f07cecdb Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Fri, 20 Jan 2017 13:04:03 -0800 Subject: treewide: Consolidate set_dma_ops() implementations Now that all set_dma_ops() implementations are identical (ignoring BUG_ON() statements), remove the architecture specific definitions and add a definition in . Signed-off-by: Bart Van Assche Cc: Benjamin Herrenschmidt Cc: Chris Metcalf Cc: David Woodhouse Cc: linux-arch@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: Paul Mackerras Cc: Russell King Signed-off-by: Doug Ledford --- arch/arm/include/asm/dma-mapping.h | 6 ------ arch/powerpc/include/asm/dma-mapping.h | 5 ----- arch/tile/include/asm/dma-mapping.h | 5 ----- include/linux/dma-mapping.h | 5 +++++ 4 files changed, 5 insertions(+), 16 deletions(-) (limited to 'arch') diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 312f4d0564d6..c7432d647e53 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -31,12 +31,6 @@ static inline const struct dma_map_ops *get_dma_ops(struct device *dev) return __generic_dma_ops(dev); } -static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops) -{ - BUG_ON(!dev); - dev->dma_ops = ops; -} - #define HAVE_ARCH_DMA_SUPPORTED 1 extern int dma_supported(struct device *dev, u64 mask); diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index 59fbd4abcbf8..8275603ba4d5 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -91,11 +91,6 @@ static inline const struct dma_map_ops *get_dma_ops(struct device *dev) return dev->dma_ops; } -static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops) -{ - dev->dma_ops = ops; -} - /* * get_dma_offset() * diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h index c0620697eaad..2562995a6ac9 100644 --- a/arch/tile/include/asm/dma-mapping.h +++ b/arch/tile/include/asm/dma-mapping.h @@ -59,11 +59,6 @@ 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, const struct dma_map_ops *ops) -{ - dev->dma_ops = ops; -} - static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) { if (!dev->dma_mask) diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index f1da68b82c63..e97f23e8b2d9 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -164,6 +164,11 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma, #ifdef CONFIG_HAS_DMA #include +static inline void set_dma_ops(struct device *dev, + const struct dma_map_ops *dma_ops) +{ + dev->dma_ops = dma_ops; +} #else /* * Define the dma api to allow compilation but not linking of -- cgit v1.2.3-58-ga151 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/alpha/include/asm/dma-mapping.h | 2 +- arch/arc/include/asm/dma-mapping.h | 2 +- arch/arm/include/asm/dma-mapping.h | 4 ++-- arch/arm64/include/asm/dma-mapping.h | 4 ++-- arch/avr32/include/asm/dma-mapping.h | 2 +- arch/blackfin/include/asm/dma-mapping.h | 2 +- arch/c6x/include/asm/dma-mapping.h | 2 +- arch/cris/include/asm/dma-mapping.h | 4 ++-- arch/frv/include/asm/dma-mapping.h | 2 +- arch/h8300/include/asm/dma-mapping.h | 2 +- arch/hexagon/include/asm/dma-mapping.h | 5 +---- arch/ia64/include/asm/dma-mapping.h | 5 ++++- arch/m32r/include/asm/dma-mapping.h | 4 +--- arch/m68k/include/asm/dma-mapping.h | 2 +- arch/metag/include/asm/dma-mapping.h | 2 +- arch/microblaze/include/asm/dma-mapping.h | 2 +- arch/mips/include/asm/dma-mapping.h | 7 ++----- arch/mn10300/include/asm/dma-mapping.h | 2 +- arch/nios2/include/asm/dma-mapping.h | 2 +- arch/openrisc/include/asm/dma-mapping.h | 2 +- arch/parisc/include/asm/dma-mapping.h | 2 +- arch/powerpc/include/asm/dma-mapping.h | 7 ++----- arch/powerpc/include/asm/ps3.h | 2 +- arch/s390/include/asm/dma-mapping.h | 4 +--- arch/sh/include/asm/dma-mapping.h | 2 +- arch/sparc/include/asm/dma-mapping.h | 4 ++-- arch/tile/include/asm/dma-mapping.h | 7 ++----- arch/unicore32/include/asm/dma-mapping.h | 2 +- arch/x86/include/asm/dma-mapping.h | 9 +-------- arch/xtensa/include/asm/dma-mapping.h | 7 ++----- include/linux/dma-mapping.h | 7 +++++++ 31 files changed, 48 insertions(+), 64 deletions(-) (limited to 'arch') diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h index d3480562411d..5d53666935e6 100644 --- a/arch/alpha/include/asm/dma-mapping.h +++ b/arch/alpha/include/asm/dma-mapping.h @@ -3,7 +3,7 @@ extern const struct dma_map_ops *dma_ops; -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) { return dma_ops; } diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h index fdff3aa60052..94285031c4fb 100644 --- a/arch/arc/include/asm/dma-mapping.h +++ b/arch/arc/include/asm/dma-mapping.h @@ -20,7 +20,7 @@ extern const struct dma_map_ops arc_dma_ops; -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) { return &arc_dma_ops; } diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index c7432d647e53..716656925975 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -23,12 +23,12 @@ static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev) return &arm_dma_ops; } -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 (xen_initial_domain()) return xen_dma_ops; else - return __generic_dma_ops(dev); + return __generic_dma_ops(NULL); } #define HAVE_ARCH_DMA_SUPPORTED 1 diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h index 58ae36cc3b60..505756cdc67a 100644 --- a/arch/arm64/include/asm/dma-mapping.h +++ b/arch/arm64/include/asm/dma-mapping.h @@ -39,12 +39,12 @@ static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev) return &dummy_dma_ops; } -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 (xen_initial_domain()) return xen_dma_ops; else - return __generic_dma_ops(dev); + return __generic_dma_ops(NULL); } void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h index b2b43c0e0774..7388451f9905 100644 --- a/arch/avr32/include/asm/dma-mapping.h +++ b/arch/avr32/include/asm/dma-mapping.h @@ -6,7 +6,7 @@ extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size, extern const struct dma_map_ops avr32_dma_ops; -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) { return &avr32_dma_ops; } diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h index 320fb50fbd41..04254ac36bed 100644 --- a/arch/blackfin/include/asm/dma-mapping.h +++ b/arch/blackfin/include/asm/dma-mapping.h @@ -38,7 +38,7 @@ _dma_sync(dma_addr_t addr, size_t size, enum dma_data_direction dir) extern const struct dma_map_ops bfin_dma_ops; -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) { return &bfin_dma_ops; } diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h index 88258b9ebc8e..aca9f755e4f8 100644 --- a/arch/c6x/include/asm/dma-mapping.h +++ b/arch/c6x/include/asm/dma-mapping.h @@ -19,7 +19,7 @@ extern const struct dma_map_ops c6x_dma_ops; -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) { return &c6x_dma_ops; } diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h index aae4fbc0a656..256169de3743 100644 --- a/arch/cris/include/asm/dma-mapping.h +++ b/arch/cris/include/asm/dma-mapping.h @@ -4,12 +4,12 @@ #ifdef CONFIG_PCI extern const struct dma_map_ops v32_dma_ops; -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) { return &v32_dma_ops; } #else -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) { BUG(); return NULL; diff --git a/arch/frv/include/asm/dma-mapping.h b/arch/frv/include/asm/dma-mapping.h index 150cc00544a8..354900917585 100644 --- a/arch/frv/include/asm/dma-mapping.h +++ b/arch/frv/include/asm/dma-mapping.h @@ -9,7 +9,7 @@ extern unsigned long __nongprelbss dma_coherent_mem_end; extern const struct dma_map_ops frv_dma_ops; -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) { return &frv_dma_ops; } diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h index f804bca4c13f..847c7562e046 100644 --- a/arch/h8300/include/asm/dma-mapping.h +++ b/arch/h8300/include/asm/dma-mapping.h @@ -3,7 +3,7 @@ extern const struct dma_map_ops h8300_dma_map_ops; -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) { return &h8300_dma_map_ops; } diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h index b812e917cd95..d3a87bd9b686 100644 --- a/arch/hexagon/include/asm/dma-mapping.h +++ b/arch/hexagon/include/asm/dma-mapping.h @@ -34,11 +34,8 @@ extern int bad_dma_address; extern const struct dma_map_ops *dma_ops; -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 (unlikely(dev == NULL)) - return NULL; - return dma_ops; } diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h index 05e467d56d86..73ec3c6f4cfe 100644 --- a/arch/ia64/include/asm/dma-mapping.h +++ b/arch/ia64/include/asm/dma-mapping.h @@ -23,7 +23,10 @@ extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t, extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int, enum dma_data_direction); -#define get_dma_ops(dev) platform_dma_get_ops(dev) +static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) +{ + return platform_dma_get_ops(NULL); +} static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) { diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h index 27b1597ac563..c01d9f52d228 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; } diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h index 863509939d5a..9210e470771b 100644 --- a/arch/m68k/include/asm/dma-mapping.h +++ b/arch/m68k/include/asm/dma-mapping.h @@ -3,7 +3,7 @@ extern const struct dma_map_ops m68k_dma_ops; -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) { return &m68k_dma_ops; } diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h index c156a7ac732f..fad3dc3cb210 100644 --- a/arch/metag/include/asm/dma-mapping.h +++ b/arch/metag/include/asm/dma-mapping.h @@ -3,7 +3,7 @@ extern const struct dma_map_ops metag_dma_ops; -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) { return &metag_dma_ops; } diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h index c7faf2fb51d6..3fad5e722a66 100644 --- a/arch/microblaze/include/asm/dma-mapping.h +++ b/arch/microblaze/include/asm/dma-mapping.h @@ -38,7 +38,7 @@ */ extern const struct dma_map_ops dma_direct_ops; -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) { return &dma_direct_ops; } diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h index dad3b09fe993..aba71385f9d1 100644 --- a/arch/mips/include/asm/dma-mapping.h +++ b/arch/mips/include/asm/dma-mapping.h @@ -11,12 +11,9 @@ extern const struct dma_map_ops *mips_dma_map_ops; -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; - else - return mips_dma_map_ops; + return mips_dma_map_ops; } static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h index 564e3927e005..737ef574b3ea 100644 --- a/arch/mn10300/include/asm/dma-mapping.h +++ b/arch/mn10300/include/asm/dma-mapping.h @@ -16,7 +16,7 @@ extern const struct dma_map_ops mn10300_dma_ops; -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) { return &mn10300_dma_ops; } diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h index aa00d839a64b..7b3c6f280293 100644 --- a/arch/nios2/include/asm/dma-mapping.h +++ b/arch/nios2/include/asm/dma-mapping.h @@ -12,7 +12,7 @@ extern const struct dma_map_ops nios2_dma_ops; -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) { return &nios2_dma_ops; } diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h index 88acbedb4947..0c0075f17145 100644 --- a/arch/openrisc/include/asm/dma-mapping.h +++ b/arch/openrisc/include/asm/dma-mapping.h @@ -30,7 +30,7 @@ extern const struct dma_map_ops or1k_dma_map_ops; -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) { return &or1k_dma_map_ops; } diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h index 1749073e44fc..5404c6a726b2 100644 --- a/arch/parisc/include/asm/dma-mapping.h +++ b/arch/parisc/include/asm/dma-mapping.h @@ -27,7 +27,7 @@ extern const struct dma_map_ops pcx_dma_ops; extern const struct dma_map_ops *hppa_dma_ops; -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) { return hppa_dma_ops; } diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index 8275603ba4d5..181a095468e4 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -78,17 +78,14 @@ extern struct dma_map_ops dma_iommu_ops; #endif extern const struct dma_map_ops dma_direct_ops; -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) { /* We don't handle the NULL dev case for ISA for now. We could * do it via an out of line call but it is not needed for now. The * only ISA DMA device we support is the floppy and we have a hack * in the floppy driver directly to get a device for us. */ - if (unlikely(dev == NULL)) - return NULL; - - return dev->dma_ops; + return NULL; } /* diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h index a19f831a4cc9..17ee719e799f 100644 --- a/arch/powerpc/include/asm/ps3.h +++ b/arch/powerpc/include/asm/ps3.h @@ -435,7 +435,7 @@ static inline void *ps3_system_bus_get_drvdata( return dev_get_drvdata(&dev->core); } -/* These two need global scope for get_dma_ops(). */ +/* These two need global scope for get_arch_dma_ops(). */ extern struct bus_type ps3_system_bus_type; diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h index a872027d0c1b..3108b8dbe266 100644 --- a/arch/s390/include/asm/dma-mapping.h +++ b/arch/s390/include/asm/dma-mapping.h @@ -12,10 +12,8 @@ extern const struct dma_map_ops s390_pci_dma_ops; -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; } diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h index a7382c34c241..d99008af5f73 100644 --- a/arch/sh/include/asm/dma-mapping.h +++ b/arch/sh/include/asm/dma-mapping.h @@ -4,7 +4,7 @@ extern const struct dma_map_ops *dma_ops; extern void no_iommu_init(void); -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) { return dma_ops; } diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h index 3d2babc0c4c6..69cc627779f2 100644 --- a/arch/sparc/include/asm/dma-mapping.h +++ b/arch/sparc/include/asm/dma-mapping.h @@ -24,14 +24,14 @@ extern const struct dma_map_ops pci32_dma_ops; extern struct bus_type pci_bus_type; -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) { #ifdef CONFIG_SPARC_LEON if (sparc_cpu_model == sparc_leon) return leon_dma_ops; #endif #if defined(CONFIG_SPARC32) && defined(CONFIG_PCI) - if (dev->bus == &pci_bus_type) + if (bus == &pci_bus_type) return &pci32_dma_ops; #endif return dma_ops; diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h index 2562995a6ac9..bbc71a29b2c6 100644 --- a/arch/tile/include/asm/dma-mapping.h +++ b/arch/tile/include/asm/dma-mapping.h @@ -29,12 +29,9 @@ 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 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; - else - return tile_dma_map_ops; + return tile_dma_map_ops; } static inline dma_addr_t get_dma_offset(struct device *dev) diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h index 14d7729c7b73..518ba5848dd6 100644 --- a/arch/unicore32/include/asm/dma-mapping.h +++ b/arch/unicore32/include/asm/dma-mapping.h @@ -23,7 +23,7 @@ extern const struct dma_map_ops swiotlb_dma_map_ops; -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) { return &swiotlb_dma_map_ops; } diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h index 94b5b96966cb..08a0838b83fb 100644 --- a/arch/x86/include/asm/dma-mapping.h +++ b/arch/x86/include/asm/dma-mapping.h @@ -27,16 +27,9 @@ extern int panic_on_overflow; extern const struct dma_map_ops *dma_ops; -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) { -#ifndef CONFIG_X86_DEV_DMA_OPS return dma_ops; -#else - if (unlikely(!dev) || !dev->dma_ops) - return dma_ops; - else - return dev->dma_ops; -#endif } bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp); diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h index 9eecfc3c5dc4..c6140fa8c0be 100644 --- a/arch/xtensa/include/asm/dma-mapping.h +++ b/arch/xtensa/include/asm/dma-mapping.h @@ -20,12 +20,9 @@ extern const struct dma_map_ops xtensa_dma_map_ops; -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; - else - return &xtensa_dma_map_ops; + return &xtensa_dma_map_ops; } void dma_cache_sync(struct device *dev, void *vaddr, size_t size, diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index e97f23e8b2d9..ab8710888ddf 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -164,6 +164,13 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma, #ifdef CONFIG_HAS_DMA #include +static inline const struct dma_map_ops *get_dma_ops(struct device *dev) +{ + if (dev && dev->dma_ops) + return dev->dma_ops; + return get_arch_dma_ops(dev ? dev->bus : NULL); +} + static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *dma_ops) { -- cgit v1.2.3-58-ga151 From 7844572c633964c864d9f32dc3f2a8ffe5d70371 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Fri, 20 Jan 2017 13:04:06 -0800 Subject: lib/dma-noop: Only build dma_noop_ops for s390 and m32r Reduce the kernel size by only building dma_noop_ops for those architectures that actually use it. This was suggested by Christoph Hellwig. Signed-off-by: Bart Van Assche Cc: Christian Borntraeger Cc: Joerg Roedel Cc: Andy Lutomirski Cc: Michael S. Tsirkin Cc: Christoph Hellwig Signed-off-by: Doug Ledford --- arch/m32r/Kconfig | 1 + arch/s390/Kconfig | 1 + lib/Kconfig | 5 +++++ lib/Makefile | 2 +- 4 files changed, 8 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig index d227a6988d6b..95474460b367 100644 --- a/arch/m32r/Kconfig +++ b/arch/m32r/Kconfig @@ -18,6 +18,7 @@ config M32R select MODULES_USE_ELF_RELA select HAVE_DEBUG_STACKOVERFLOW select CPU_NO_EFFICIENT_FFS + select DMA_NOOP_OPS config SBUS bool diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index c6722112527d..38ad42358c41 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -137,6 +137,7 @@ config S390 select HAVE_DEBUG_KMEMLEAK select HAVE_DMA_API_DEBUG select HAVE_DMA_CONTIGUOUS + select DMA_NOOP_OPS select HAVE_DYNAMIC_FTRACE select HAVE_DYNAMIC_FTRACE_WITH_REGS select HAVE_EFFICIENT_UNALIGNED_ACCESS diff --git a/lib/Kconfig b/lib/Kconfig index 260a80e313b9..b6baf0609e8b 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -395,6 +395,11 @@ config HAS_DMA depends on !NO_DMA default y +config DMA_NOOP_OPS + bool + depends on HAS_DMA && (!64BIT || ARCH_DMA_ADDR_T_64BIT) + default n + config CHECK_SIGNATURE bool diff --git a/lib/Makefile b/lib/Makefile index bc4073a8cd08..ada06d5652e8 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -26,7 +26,7 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \ lib-$(CONFIG_MMU) += ioremap.o lib-$(CONFIG_SMP) += cpumask.o -lib-$(CONFIG_HAS_DMA) += dma-noop.o +lib-$(CONFIG_DMA_NOOP_OPS) += dma-noop.o lib-y += kobject.o klist.o obj-y += lockref.o -- cgit v1.2.3-58-ga151