https://github.com/torvalds/linux
Revision 2481366afd71a0c0b7cd725e6750c04cf589673b authored by Andrey Smirnov on 28 September 2016, 22:22:33 UTC, committed by Linus Torvalds on 28 September 2016, 23:19:01 UTC
When CONFIG_DMA_API_DEBUG is enabled we need to preserve unmapping address even if "unmap" is a no-op for our architecutre because we need debug_dma_unmap_page() to correctly cleanup all of the debug bookkeeping. Failing to do so results in a false positive warnings about previously mapped areas never being unmapped. Link: http://lkml.kernel.org/r/1474387125-3713-1-git-send-email-andrew.smirnov@gmail.com Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Cc: Joerg Roedel <jroedel@suse.de> Cc: Will Deacon <will.deacon@arm.com> Cc: Zhen Lei <thunder.leizhen@huawei.com> Cc: "Luis R. Rodriguez" <mcgrof@suse.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Geliang Tang <geliangtang@163.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 5b398e4
Tip revision: 2481366afd71a0c0b7cd725e6750c04cf589673b authored by Andrey Smirnov on 28 September 2016, 22:22:33 UTC
dma-mapping.h: preserve unmap info for CONFIG_DMA_API_DEBUG
dma-mapping.h: preserve unmap info for CONFIG_DMA_API_DEBUG
Tip revision: 2481366
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| README | -rw-r--r-- | 18.1 KB |
| REPORTING-BUGS | -rw-r--r-- | 7.3 KB |
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