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(parent: 06f55fd) | patch
dma-direct: fix DMA_ATTR_NO_KERNEL_MAPPING for remapped allocations
authorChristoph Hellwig <hch@lst.de>
Fri, 4 Jan 2019 17:31:48 +0000 (18:31 +0100)
committerChristoph Hellwig <hch@lst.de>
Sat, 5 Jan 2019 07:28:29 +0000 (08:28 +0100)
commit8270f3a11ceef64bdb0ab141180e8d2f17c619ec
tree15e02d8bce01367246670de4ff4c533ea9d46244tree | snapshot
parent06f55fd2d22742ed7e725124dfea68936d12ce40commit | diff
dma-direct: fix DMA_ATTR_NO_KERNEL_MAPPING for remapped allocations

We need to return a dma_addr_t even if we don't have a kernel mapping.
Do so by consolidating the phys_to_dma call in a single place and jump
to it from all the branches that return successfully.

Fixes: bfd56cd60521 ("dma-mapping: support highmem in the generic remap allocator")
Reported-by: Liviu Dudau <liviu@dudau.co.uk
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Liviu Dudau <liviu@dudau.co.uk>
kernel/dma/remap.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)