diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-08-17 17:14:28 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2020-09-11 09:11:36 +0200 |
| commit | 3773dfe6ea4d220dcccb03827fca94ec3d39bc17 (patch) | |
| tree | 0b60fc236d09506e8e5990ed7e5074e815aea6d8 /kernel/dma | |
| parent | 2f5388a29be82a62529d146499e70987e856f6f7 (diff) | |
| download | linux-3773dfe6ea4d220dcccb03827fca94ec3d39bc17.tar.bz2 | |
dma-direct: lift gfp_t manipulation out of__dma_direct_alloc_pages
Move the detailed gfp_t setup from __dma_direct_alloc_pages into the
caller to clean things up a little.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Diffstat (limited to 'kernel/dma')
| -rw-r--r-- | kernel/dma/direct.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c index 1d564bea5857..12e9f5f75dfe 100644 --- a/kernel/dma/direct.c +++ b/kernel/dma/direct.c @@ -108,7 +108,7 @@ static inline bool dma_should_free_from_pool(struct device *dev, } static struct page *__dma_direct_alloc_pages(struct device *dev, size_t size, - gfp_t gfp, unsigned long attrs) + gfp_t gfp) { int node = dev_to_node(dev); struct page *page = NULL; @@ -116,11 +116,6 @@ static struct page *__dma_direct_alloc_pages(struct device *dev, size_t size, WARN_ON_ONCE(!PAGE_ALIGNED(size)); - if (attrs & DMA_ATTR_NO_WARN) - gfp |= __GFP_NOWARN; - - /* we always manually zero the memory once we are done: */ - gfp &= ~__GFP_ZERO; gfp |= dma_direct_optimal_gfp_mask(dev, dev->coherent_dma_mask, &phys_limit); page = dma_alloc_contiguous(dev, size, gfp); @@ -164,6 +159,8 @@ void *dma_direct_alloc(struct device *dev, size_t size, return arch_dma_alloc(dev, size, dma_handle, gfp, attrs); size = PAGE_ALIGN(size); + if (attrs & DMA_ATTR_NO_WARN) + gfp |= __GFP_NOWARN; if (dma_should_alloc_from_pool(dev, gfp, attrs)) { u64 phys_mask; @@ -177,7 +174,8 @@ void *dma_direct_alloc(struct device *dev, size_t size, goto done; } - page = __dma_direct_alloc_pages(dev, size, gfp, attrs); + /* we always manually zero the memory once we are done */ + page = __dma_direct_alloc_pages(dev, size, gfp & ~__GFP_ZERO); if (!page) return NULL; |