Christoph Hellwig ffcb754584 dma-mapping: reject __GFP_COMP in dma_alloc_attrs ...

DMA allocations can never be turned back into a page pointer, so
requesting compound pages doesn't make sense and it can't even be
supported at all by various backends.

Reject __GFP_COMP with a warning in dma_alloc_attrs, and stop clearing
the flag in the arm dma ops and dma-iommu.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>

2022-11-21 09:37:20 +01:00

..

coherent.c

dma-mapping: Add dma_release_coherent_memory to DMA API

2022-06-24 09:30:54 -06:00

contiguous.c

cma: factor out minimum alignment requirement

2022-03-22 15:57:05 -07:00

debug.c

dma-debug: improve search for partial syncs

2022-09-07 10:38:16 +02:00

debug.h

dma-debug: teach add_dma_entry() about DMA_ATTR_SKIP_CPU_SYNC

2021-10-18 12:46:45 +02:00

direct.c

Merge tag 'dma-mapping-5.20-2022-08-06' of git://git.infradead.org/users/hch/dma-mapping

2022-08-06 10:56:45 -07:00

direct.h

dma-direct: support PCI P2PDMA pages in dma-direct map_sg

2022-07-26 07:27:47 -04:00

dummy.c

dma-mapping: return error code from dma_dummy_map_sg()

2021-08-09 17:13:06 +02:00

Kconfig

dma-mapping: remove CONFIG_DMA_REMAP

2022-03-03 14:00:57 +03:00

Makefile

dma-mapping: remove CONFIG_DMA_REMAP

2022-03-03 14:00:57 +03:00

map_benchmark.c

dma-mapping: benchmark: extract a common header file for map_benchmark definition

2022-03-10 07:41:14 +01:00

mapping.c

dma-mapping: reject __GFP_COMP in dma_alloc_attrs

2022-11-21 09:37:20 +01:00

ops_helpers.c

dma-mapping: handle vmalloc addresses in dma_common_{mmap,get_sgtable}

2021-07-16 11:30:26 +02:00

pool.c

dma/pool: create dma atomic pool only if dma zone has managed pages

2022-01-15 16:30:29 +02:00

remap.c

kernel/dma: remove unnecessary unmap_kernel_range

2021-04-30 11:20:40 -07:00

swiotlb.c

swiotlb: reduce the swiotlb buffer size on allocation failure

2022-11-01 12:06:12 +01:00