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(parent: bab1622) | patch
dma-debug: report -EEXIST errors in add_dma_entry dma-mapping-5.14
authorHamza Mahfooz <someguy@effective-light.com>
Tue, 18 May 2021 12:54:43 +0000 (08:54 -0400)
committerChristoph Hellwig <hch@lst.de>
Tue, 22 Jun 2021 06:15:47 +0000 (08:15 +0200)
commit2b4bbc6231d789f58676d2ccc42177df163e1c4a
treec7ec7d228c7fcd3b551f527de9c70f0ea07730a5tree
parentbab1622350699dc209db4f50d9ab99e6f6465334commit | diff
dma-debug: report -EEXIST errors in add_dma_entry

Since, overlapping mappings are not supported by the DMA API we should
report an error if active_cacheline_insert returns -EEXIST.

Suggested-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Hamza Mahfooz <someguy@effective-light.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
kernel/dma/debug.c diff | blob | history
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