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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-12-13 20:05:19 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-12-13 20:05:19 +0300 |
| commit | e529d3507a93d3c9528580081bbaf931a50de154 (patch) | |
| tree | c363cf495fdbec199a8a9860d8e663389ae8cdd4 /arch/arm | |
| parent | 6a24711d5c0bc8fb0fc49def433ab89ecbedf095 (diff) | |
| parent | ffcb754584603adf7039d7972564fbf6febdc542 (diff) | |
| download | linux-e529d3507a93d3c9528580081bbaf931a50de154.tar.xz | |
Merge tag 'dma-mapping-6.2-2022-12-13' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:
- reduce the swiotlb buffer size on allocation failure (Alexey
Kardashevskiy)
- clean up passing of bogus GFP flags to the dma-coherent allocator
(Christoph Hellwig)
* tag 'dma-mapping-6.2-2022-12-13' of git://git.infradead.org/users/hch/dma-mapping:
dma-mapping: reject __GFP_COMP in dma_alloc_attrs
ALSA: memalloc: don't pass bogus GFP_ flags to dma_alloc_*
s390/ism: don't pass bogus GFP_ flags to dma_alloc_coherent
cnic: don't pass bogus GFP_ flags to dma_alloc_coherent
RDMA/qib: don't pass bogus GFP_ flags to dma_alloc_coherent
RDMA/hfi1: don't pass bogus GFP_ flags to dma_alloc_coherent
media: videobuf-dma-contig: use dma_mmap_coherent
swiotlb: reduce the swiotlb buffer size on allocation failure
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mm/dma-mapping.c | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index d7909091cf97..c135f6e37a00 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -564,14 +564,6 @@ static void *__dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, if (mask < 0xffffffffULL) gfp |= GFP_DMA; - /* - * Following is a work-around (a.k.a. hack) to prevent pages - * with __GFP_COMP being passed to split_page() which cannot - * handle them. The real problem is that this flag probably - * should be 0 on ARM as it is not supported on this - * platform; see CONFIG_HUGETLBFS. - */ - gfp &= ~(__GFP_COMP); args.gfp = gfp; *handle = DMA_MAPPING_ERROR; @@ -1093,15 +1085,6 @@ static void *arm_iommu_alloc_attrs(struct device *dev, size_t size, return __iommu_alloc_simple(dev, size, gfp, handle, coherent_flag, attrs); - /* - * Following is a work-around (a.k.a. hack) to prevent pages - * with __GFP_COMP being passed to split_page() which cannot - * handle them. The real problem is that this flag probably - * should be 0 on ARM as it is not supported on this - * platform; see CONFIG_HUGETLBFS. - */ - gfp &= ~(__GFP_COMP); - pages = __iommu_alloc_buffer(dev, size, gfp, attrs, coherent_flag); if (!pages) return NULL; |