Re: [PATCH v2 08/16] mt76: mt7921: make all event parser reusable between mt7921s and mt7921e
From: Lorenzo Bianconi <hidden>
Date: 2021-09-18 10:16:12
Also in:
linux-mediatek
quoted hunk ↗ jump to hunk
From: Sean Wang <sean.wang@mediatek.com> The longer event such as the event for mcu_get_nic_capability would hold the data in paged fragment skb for the SDIO device so we turn the skb to be linearized skb before accessing it to reuse the same event parser betweem mt7921s and mt7921e. Tested-by: Deren Wu <redacted> Signed-off-by: Sean Wang <sean.wang@mediatek.com> --- drivers/net/wireless/mediatek/mt76/mt7921/mcu.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c index 866b8797f16e..863781895652 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c@@ -456,7 +456,14 @@ mt7921_mcu_rx_unsolicited_event(struct mt7921_dev *dev, struct sk_buff *skb) void mt7921_mcu_rx_event(struct mt7921_dev *dev, struct sk_buff *skb) { - struct mt7921_mcu_rxd *rxd = (struct mt7921_mcu_rxd *)skb->data; + struct mt7921_mcu_rxd *rxd; + int ret; + + ret = skb_linearize(skb);
nit: we do not need ret variable here: if (skb_linearize(skb)) return;
+ if (ret)
+ return;
+
+ rxd = (struct mt7921_mcu_rxd *)skb->data;
if (rxd->eid == 0x6) {
mt76_mcu_rx_event(&dev->mt76, skb);
--
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