linux-toradex.git/kernel/dma/debug.h, branch v6.16-rc6 Linux kernel for Apalis and Colibri modules dma-debug: teach add_dma_entry() about DMA_ATTR_SKIP_CPU_SYNC 2021-10-18T10:46:45+00:00 Hamza Mahfooz someguy@effective-light.com 2021-10-12T05:54:03+00:00 c2bbf9d1e9ac7d4fdd503b190bc1ba8a6302bc49 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> 
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>
dma-mapping: move dma-debug.h to kernel/dma/ 2020-10-06T05:07:05+00:00 Christoph Hellwig hch@lst.de 2020-09-11T08:12:44+00:00 a1fd09e8e6ae35228ecc7c1e4bfff1fd725f78a0 Most of dma-debug.h is not required by anything outside of kernel/dma. Move the four declarations needed by dma-mappin.h or dma-ops providers into dma-mapping.h and dma-map-ops.h, and move the remainder of the file to kernel/dma/debug.h. Signed-off-by: Christoph Hellwig <hch@lst.de> 
Most of dma-debug.h is not required by anything outside of kernel/dma.
Move the four declarations needed by dma-mappin.h or dma-ops providers
into dma-mapping.h and dma-map-ops.h, and move the remainder of the
file to kernel/dma/debug.h.

Signed-off-by: Christoph Hellwig <hch@lst.de>