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(parent: 8d4241d) | patch
dma-debug: report -EEXIST errors in add_dma_entry
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)
commit917b3fad6853df27a8c2fd71d81b0a6f08cd83eb
treec7ec7d228c7fcd3b551f527de9c70f0ea07730a5tree | snapshot
parent8d4241d40d124ceae68a72327cc090dd63960597commit | 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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