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

…

contiguous.c

…

debug.c

dma-debug: improve search for partial syncs

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

debug.h

…

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

…

Kconfig

…

Makefile

…

map_benchmark.c

…

mapping.c

dma-mapping: reject __GFP_COMP in dma_alloc_attrs

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

ops_helpers.c

…

pool.c

…

remap.c

…

swiotlb.c

swiotlb: reduce the swiotlb buffer size on allocation failure

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