diff options
| author | Christoph Hellwig <[email protected]> | 2022-11-09 08:37:17 +0100 |
|---|---|---|
| committer | Christoph Hellwig <[email protected]> | 2022-11-21 09:37:20 +0100 |
| commit | ffcb754584603adf7039d7972564fbf6febdc542 (patch) | |
| tree | ffcb4184b490a6559a16baea06020804da298c80 /drivers/usb/cdns3/cdns3-debug.h | |
| parent | 3306877aff07363f9bede7f9edf2c4ea4f5b20be (diff) | |
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 <[email protected]>
Acked-by: Marek Szyprowski <[email protected]>
Diffstat (limited to 'drivers/usb/cdns3/cdns3-debug.h')
0 files changed, 0 insertions, 0 deletions