The patch titled
Subject: arm64: dma-mapping: constify attrs passed to internal functions
has been added to the -mm tree. Its filename is
arm64-dma-mapping-constify-attrs-passed-to-internal-functions.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/arm64-dma-mapping-constify-attrs-passed-to-internal-functions.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/arm64-dma-mapping-constify-attrs-passed-to-internal-functions.patch
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------------------------------------------------------
From: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
Subject: arm64: dma-mapping: constify attrs passed to internal functions
Some of the non-exported functions do not modify passed dma_attrs so the
pointer can point to const data.
Link: http://lkml.kernel.org/r/1464071290-15948-4-git-send-email-k.kozlowski@xxxxxxxxxxx
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxx>
Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Cc: Joerg Roedel <joro@xxxxxxxxxx>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/arm64/mm/dma-mapping.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff -puN arch/arm64/mm/dma-mapping.c~arm64-dma-mapping-constify-attrs-passed-to-internal-functions arch/arm64/mm/dma-mapping.c
--- a/arch/arm64/mm/dma-mapping.c~arm64-dma-mapping-constify-attrs-passed-to-internal-functions
+++ a/arch/arm64/mm/dma-mapping.c
@@ -29,7 +29,7 @@
#include <asm/cacheflush.h>
-static pgprot_t __get_dma_pgprot(struct dma_attrs *attrs, pgprot_t prot,
+static pgprot_t __get_dma_pgprot(const struct dma_attrs *attrs, pgprot_t prot,
bool coherent)
{
if (!coherent || dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs))
@@ -88,7 +88,7 @@ static int __free_from_pool(void *start,
static void *__dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flags,
- struct dma_attrs *attrs)
+ const struct dma_attrs *attrs)
{
if (dev == NULL) {
WARN_ONCE(1, "Use an actual device structure for DMA allocation\n");
@@ -118,7 +118,7 @@ static void *__dma_alloc_coherent(struct
static void __dma_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle,
- struct dma_attrs *attrs)
+ const struct dma_attrs *attrs)
{
bool freed;
phys_addr_t paddr = dma_to_phys(dev, dma_handle);
_
Patches currently in -mm which might be from k.kozlowski@xxxxxxxxxxx are
dma-mapping-constify-attrs-passed-to-dma_get_attr.patch
arm-dma-mapping-constify-attrs-passed-to-internal-functions.patch
arm64-dma-mapping-constify-attrs-passed-to-internal-functions.patch
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