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/openbmc/linux/kernel/dma/
H A Ddebug.hdiff c2bbf9d1e9ac7d4fdd503b190bc1ba8a6302bc49 Tue Oct 12 00:54:03 CDT 2021 Hamza Mahfooz <someguy@effective-light.com> dma-debug: teach add_dma_entry() about DMA_ATTR_SKIP_CPU_SYNC

Mapping something twice should be possible as long as,
DMA_ATTR_SKIP_CPU_SYNC is passed to the strictly speaking second relevant
mapping operation (that attempts to map the same thing). So, don't issue a
warning if the specified condition is met in add_dma_entry().

Signed-off-by: Hamza Mahfooz <someguy@effective-light.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
H A Ddebug.cdiff c2bbf9d1e9ac7d4fdd503b190bc1ba8a6302bc49 Tue Oct 12 00:54:03 CDT 2021 Hamza Mahfooz <someguy@effective-light.com> dma-debug: teach add_dma_entry() about DMA_ATTR_SKIP_CPU_SYNC

Mapping something twice should be possible as long as,
DMA_ATTR_SKIP_CPU_SYNC is passed to the strictly speaking second relevant
mapping operation (that attempts to map the same thing). So, don't issue a
warning if the specified condition is met in add_dma_entry().

Signed-off-by: Hamza Mahfooz <someguy@effective-light.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
H A Dmapping.cdiff c2bbf9d1e9ac7d4fdd503b190bc1ba8a6302bc49 Tue Oct 12 00:54:03 CDT 2021 Hamza Mahfooz <someguy@effective-light.com> dma-debug: teach add_dma_entry() about DMA_ATTR_SKIP_CPU_SYNC

Mapping something twice should be possible as long as,
DMA_ATTR_SKIP_CPU_SYNC is passed to the strictly speaking second relevant
mapping operation (that attempts to map the same thing). So, don't issue a
warning if the specified condition is met in add_dma_entry().

Signed-off-by: Hamza Mahfooz <someguy@effective-light.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>