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>
This commit is contained in:
Bart Van Assche
2017-01-20 13:04:01 -08:00
committed by Doug Ledford
parent 102c5ce082
commit 5299709d0a
113 changed files with 227 additions and 227 deletions

View File

@@ -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)

View File

@@ -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)

View File

@@ -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);

View File

@@ -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,