Here are two patches that improve DMA alignment handling of the dwc2
driver significantly.
The first one ("usb: dwc2: Fix DMA alignment to start at allocated
boundary") fixes an actual crash regression on some platforms introduced
by commit 3bc04e28a030 ("usb: dwc2: host: Get aligned DMA in a more
supported way") and should be considered for inclusion in stable kernel
release.
The second patch ("usb: dwc2: Fix inefficient copy of unaligned
buffers") is a port of an optimization found from similar drivers to
dwc2. In my tests it offered a significant performance improvement in
certain use cases. Since it touches the same area that I was already
modifying I decided to split it into separate patch and include in the
series.
Antti Seppälä (2):
usb: dwc2: Fix DMA alignment to start at allocated boundary
usb: dwc2: Fix inefficient copy of unaligned buffers
drivers/usb/dwc2/hcd.c | 54 +++++++++++++++++++++++++++++---------------------
1 file changed, 31 insertions(+), 23 deletions(-)
--
2.13.6
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