diff options
Diffstat (limited to 'target/linux')
| -rw-r--r-- | target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c index ed04033..c04fb94 100644 --- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c +++ b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c @@ -704,7 +704,12 @@ static int ag71xx_fill_dma_desc(struct ag71xx_ring *ring, u32 addr, int len) if (cur_len > split) { cur_len = split; - if (len < split + 4) + + /* + * TX will hang if DMA transfers <= 4 bytes, + * make sure next segment is more than 4 bytes long. + */ + if (len <= split + 4) cur_len -= 4; } |