On Sat, 21 Sep 2019 at 13:52, Stefan Schmidt <stefan@xxxxxxxxxxxxxxxxxx> wrote:
>
> Hello Xue.
>
> On 20.09.19 21:45, Christophe JAILLET wrote:
> > Use a 'skb_put_data()' variant instead of rewritting it.
> > The __skb_put_data variant is safe here. It is obvious that the skb can
> > not overflow. It has just been allocated a few lines above with the same
> > 'len'.
> >
> > Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
> > ---
> > drivers/net/ieee802154/mcr20a.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/net/ieee802154/mcr20a.c b/drivers/net/ieee802154/mcr20a.c
> > index 17f2300e63ee..8dc04e2590b1 100644
> > --- a/drivers/net/ieee802154/mcr20a.c
> > +++ b/drivers/net/ieee802154/mcr20a.c
> > @@ -800,7 +800,7 @@ mcr20a_handle_rx_read_buf_complete(void *context)
> > if (!skb)
> > return;
> >
> > - memcpy(skb_put(skb, len), lp->rx_buf, len);
> > + __skb_put_data(skb, lp->rx_buf, len);
> > ieee802154_rx_irqsafe(lp->hw, skb, lp->rx_lqi[0]);
> >
> > print_hex_dump_debug("mcr20a rx: ", DUMP_PREFIX_OFFSET, 16, 1,
> >
>
> Could you please review and ACK this? If you are happy I will take it
> through my tree.
>
> regards
> Stefan Schmidt
Acked-by: Xue Liu <liuxuenetmail@xxxxxxxxx>
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