> > 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 <deren.wu@mediatek.com>
> > 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 f5a8f7fa4244..8e49df20a8cb 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
> > @@ -458,7 +458,14 @@ 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);
> 
> is it true for sdio only? if so what about doing something like:
> 
> if (mt76_is_sdio() && skb_linearize(skb))
> 	return;

please ignore this comment, it is already in skb_linearize()

> 
> > +	if (ret)
> > +		return;
> > +
> > +	rxd = (struct mt7921_mcu_rxd *)skb->data;
> >  
> >  	if (rxd->eid == 0x6) {
> >  		mt76_mcu_rx_event(&dev->mt76, skb);
> > -- 
> > 2.25.1
> >