[PATCH for 5.4.y 0/2] backort of ddbd89deb7d3 and aa6f8dcbab47

[Halil Pasic <pasic@xxxxxxxxxxxxx>]

This is a backport of ddbd89deb7d3 ("swiotlb: fix info leak with
DMA_FROM_DEVICE") and aa6f8dcbab47 ("swiotlb: rework "fix info leak with
DMA_FROM_DEVICE"") for 5.4.y.

I had to handle some merge conflicts, that at this point we have
swiotlb_tbl_sync_single() as opposed to
swiotlb_sync_single_for_device(), and also a file rename from
Documentation/DMA-attributes.txt to
Documentation/core-api/dma-attributes.rst. 


Halil Pasic (2):
  swiotlb: fix info leak with DMA_FROM_DEVICE
  swiotlb: rework "fix info leak with DMA_FROM_DEVICE"

 kernel/dma/swiotlb.c | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)


base-commit: 7f44fdc1563d6bca95ee9fb4414e4b8286bccb0c
-- 
2.32.0