diff options
| author | Marek Vasut <[email protected]> | 2020-03-23 02:11:46 +0100 |
|---|---|---|
| committer | marex <[email protected]> | 2020-05-01 12:35:21 +0200 |
| commit | 24891dd8d40d71c034023d2a037c97df1714393b (patch) | |
| tree | 9902469951873d9d0455f4e26e1f63dbe872cd91 /scripts/basic | |
| parent | a83ca0c280dd41dda576d6a8f15a8534a84b782c (diff) | |
net: dwc_eth_qos: Prevent DMA from writing updated RX DMA descriptor
The DMA may attempt to write a DMA descriptor in the ring while it is
being updated. By writing the DMA descriptor buffer address to 0, it
is assured the DMA will not use such a buffer and the buffer can be
updated without any interference.
Reviewed-by: Patrick Delaunay <[email protected]>
Signed-off-by: Marek Vasut <[email protected]>
Cc: Joe Hershberger <[email protected]>
Cc: Patrice Chotard <[email protected]>
Cc: Patrick Delaunay <[email protected]>
Cc: Ramon Fried <[email protected]>
Cc: Stephen Warren <[email protected]>
Diffstat (limited to 'scripts/basic')
0 files changed, 0 insertions, 0 deletions