Re: [PATCH] staging:r8723bs: remove wrappers around skb_clone()

[Ivan Safonov]

On 5/31/20 7:15 PM, Joe Perches wrote:
> On Sun, 2020-05-31 at 19:08 +0300, Ivan Safonov wrote:
> > Wrappers around skb_clone() do not simplify the driver code.
> []
> > -inline struct sk_buff *_rtw_skb_clone(struct sk_buff *skb)
> > -{
> > -	return skb_clone(skb, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
> > -}
> > -
> []
> > diff --git a/drivers/staging/rtl8723bs/os_dep/recv_linux.c b/drivers/staging/rtl8723bs/os_dep/recv_linux.c
> []
> > @@ -110,7 +110,7 @@ void rtw_os_recv_indicate_pkt(struct adapter *padapter, _pkt *pkt, struct rx_pkt
> >   			if (memcmp(pattrib->dst, myid(&padapter->eeprompriv), ETH_ALEN)) {
> >   				if (bmcast) {
> >   					psta = rtw_get_bcmc_stainfo(padapter);
> > -					pskb2 = rtw_skb_clone(pkt);
> > +					pskb2 = skb_clone(pkt, GFP_ATOMIC);
>
> Why make every clone allocation GFP_ATOMIC ?

The rtw_os_recv_indicate_pkt() is always called from an interrupt handler.