Christoph Hellwig
518a2f1925
dma-mapping: zero memory returned from dma_alloc_* ...
If we want to map memory from the DMA allocator to userspace it must be
zeroed at allocation time to prevent stale data leaks. We already do
this on most common architectures, but some architectures don't do this
yet, fix them up, either by passing GFP_ZERO when we use the normal page
allocator or doing a manual memset otherwise.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
Acked-by: Sam Ravnborg <sam@ravnborg.org> [sparc]
2018-12-20 08:13:52 +01:00
dma-mapping: zero memory returned from dma_alloc_*
2018-12-20 08:13:52 +01:00
dma-mapping: zero memory returned from dma_alloc_*
2018-12-20 08:13:52 +01:00
dma-mapping: bypass indirect calls for dma-direct
2018-12-13 21:06:18 +01:00
arm64: default to the direct mapping in get_arch_dma_ops
2018-12-19 18:00:12 +01:00
dma-mapping: zero memory returned from dma_alloc_*
2018-12-20 08:13:52 +01:00
dma-mapping: always build the direct mapping code
2018-12-13 21:06:11 +01:00
dma-mapping: always build the direct mapping code
2018-12-13 21:06:11 +01:00
dma-mapping: always build the direct mapping code
2018-12-13 21:06:11 +01:00
ia64: only select ARCH_HAS_DMA_COHERENT_TO_PFN if swiotlb is enabled
2018-12-15 11:01:25 +01:00
dma-mapping: zero memory returned from dma_alloc_*
2018-12-20 08:13:52 +01:00
dma-mapping: zero memory returned from dma_alloc_*
2018-12-20 08:13:52 +01:00
dma-mapping: bypass indirect calls for dma-direct
2018-12-13 21:06:18 +01:00
dma-mapping: always build the direct mapping code
2018-12-13 21:06:11 +01:00
dma-mapping: always build the direct mapping code
2018-12-13 21:06:11 +01:00
dma-mapping: zero memory returned from dma_alloc_*
2018-12-20 08:13:52 +01:00
dma-mapping: zero memory returned from dma_alloc_*
2018-12-20 08:13:52 +01:00
dma-direct: merge swiotlb_dma_ops into the dma_direct code
2018-12-13 21:06:17 +01:00
dma-direct: merge swiotlb_dma_ops into the dma_direct code
2018-12-13 21:06:17 +01:00
dma-mapping: zero memory returned from dma_alloc_*
2018-12-20 08:13:52 +01:00
dma-mapping: always build the direct mapping code
2018-12-13 21:06:11 +01:00
dma-mapping: zero memory returned from dma_alloc_*
2018-12-20 08:13:52 +01:00
for-linus-20181109
2018-11-09 16:31:51 -06:00
dma-mapping: always build the direct mapping code
2018-12-13 21:06:11 +01:00
dma-mapping: bypass indirect calls for dma-direct
2018-12-13 21:06:18 +01:00
dma-mapping: zero memory returned from dma_alloc_*
2018-12-20 08:13:52 +01:00
New gcc plugin: stackleak
2018-11-01 11:46:27 -07:00
518a2f1925