diff options
| author | Guenter Roeck <[email protected]> | 2021-01-13 12:20:49 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2021-01-26 18:42:15 +0100 |
| commit | 415fa1c7305dedbb345e2cc8ac91769bc1c83f1a (patch) | |
| tree | 241528fb7ab1d329c61bb4cefa9a929f79dcb119 /tools/perf/scripts | |
| parent | 7961b77c0d489764166d789adb2c1d21b71b5aad (diff) | |
usb: dwc2: Do not update data length if it is 0 on inbound transfers
The DWC2 documentation states that transfers with zero data length should
set the number of packets to 1 and the transfer length to 0. This is not
currently the case for inbound transfers: the transfer length is set to
the maximum packet length. This can have adverse effects if the chip
actually does transfer data as it is programmed to do. Follow chip
documentation and keep the transfer length set to 0 in that situation.
Fixes: 56f5b1cff22a1 ("staging: Core files for the DWC2 driver")
Tested-by: Nicolas Saenz Julienne <[email protected]>
Reviewed-by: Douglas Anderson <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
Signed-off-by: Nicolas Saenz Julienne <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'tools/perf/scripts')
0 files changed, 0 insertions, 0 deletions