diff options
author | Bart Van Assche <bart.vanassche@sandisk.com> | 2017-01-20 22:04:01 +0100 |
---|---|---|
committer | Doug Ledford <dledford@redhat.com> | 2017-01-24 18:23:35 +0100 |
commit | 5299709d0a87342dadc1fc9850484fadeb488bf8 (patch) | |
tree | a4d866c18765747846a456810ac5f661cecb8fce /arch/ia64 | |
parent | RDMA/cma: use cached port state when bind loopback (diff) | |
download | linux-5299709d0a87342dadc1fc9850484fadeb488bf8.tar.xz linux-5299709d0a87342dadc1fc9850484fadeb488bf8.zip |
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 <bart.vanassche@sandisk.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Juergen Gross <jgross@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Russell King <linux@armlinux.org.uk>
Cc: x86@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'arch/ia64')
-rw-r--r-- | arch/ia64/hp/common/hwsw_iommu.c | 4 | ||||
-rw-r--r-- | arch/ia64/hp/common/sba_iommu.c | 4 | ||||
-rw-r--r-- | arch/ia64/include/asm/dma-mapping.h | 2 | ||||
-rw-r--r-- | arch/ia64/include/asm/machvec.h | 4 | ||||
-rw-r--r-- | arch/ia64/kernel/dma-mapping.c | 4 | ||||
-rw-r--r-- | arch/ia64/kernel/pci-dma.c | 10 | ||||
-rw-r--r-- | arch/ia64/kernel/pci-swiotlb.c | 2 |
7 files changed, 15 insertions, 15 deletions
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 <linux/export.h> #include <asm/machvec.h> -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, |