diff options
| author | Felix Fietkau <nbd@nbd.name> | 2020-07-25 14:44:07 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2020-09-24 18:10:13 +0200 |
| commit | 27d5c528a7ca08dcd44877fdd9fc08b76630bf77 (patch) | |
| tree | 77c1fb9608ea744470aa3833359f4ae2f14d391b /drivers/net/wireless/mediatek/mt76/mt7915/mac.c | |
| parent | c12b7c7944e56e526c0a457282603ebcdd04ca90 (diff) | |
mt76: fix double DMA unmap of the first buffer on 7615/7915
A small part of the first skb buffer is passed to the firmware for parsing
via DMA, while the full buffer is passed as part of the TXP.
Avoid calling DMA unmap on the first part (with a different length than map)
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7915/mac.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7915/mac.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c index 6825afca1efb..99ab5fca0f6d 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c @@ -715,6 +715,7 @@ int mt7915_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr, /* pass partial skb header to fw */ tx_info->buf[1].len = MT_CT_PARSE_LEN; + tx_info->buf[1].skip_unmap = true; tx_info->nbuf = MT_CT_DMA_BUF_NUM; txp->flags = cpu_to_le16(MT_CT_INFO_APPLY_TXD); |