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| author | Martin Schiller <[email protected]> | 2019-02-18 06:37:30 +0000 |
|---|---|---|
| committer | Felipe Balbi <[email protected]> | 2019-06-06 10:51:57 +0000 |
| commit | 4a4863bf2e7932e584a3a462d3c6daf891142ddc (patch) | |
| tree | 5db2d2a943d82aad44d9b1081016041d233b122c /lib/timerqueue.c | |
| parent | usb: dwc2: host: Fix wMaxPacketSize handling (fix webcam regression) (diff) | |
| download | kernel-4a4863bf2e7932e584a3a462d3c6daf891142ddc.tar.gz kernel-4a4863bf2e7932e584a3a462d3c6daf891142ddc.zip | |
usb: dwc2: Fix DMA cache alignment issues
Insert a padding between data and the stored_xfer_buffer pointer to
ensure they are not on the same cache line.
Otherwise, the stored_xfer_buffer gets corrupted for IN URBs on
non-cache-coherent systems. (In my case: Lantiq xRX200 MIPS)
Fixes: 3bc04e28a030 ("usb: dwc2: host: Get aligned DMA in a more supported way")
Fixes: 56406e017a88 ("usb: dwc2: Fix DMA alignment to start at allocated boundary")
Cc: <[email protected]>
Tested-by: Douglas Anderson <[email protected]>
Reviewed-by: Douglas Anderson <[email protected]>
Acked-by: Minas Harutyunyan <[email protected]>
Signed-off-by: Martin Schiller <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
Diffstat (limited to 'lib/timerqueue.c')
0 files changed, 0 insertions, 0 deletions