From mboxrd@z Thu Jan 1 00:00:00 1970 From: socketcan@hartkopp.net (Oliver Hartkopp) Date: Wed, 05 Nov 2014 10:39:16 +0100 Subject: [PATCH V1 3/4] can: add can_is_canfd_skb() API In-Reply-To: <1415174326-6623-3-git-send-email-b29396@freescale.com> References: <1415174326-6623-1-git-send-email-b29396@freescale.com> <1415174326-6623-3-git-send-email-b29396@freescale.com> Message-ID: <5459F044.3090902@hartkopp.net> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 05.11.2014 08:58, Dong Aisheng wrote: > The CAN device drivers can use it to check if the frame to send is on > CAN FD mode or normal CAN mode. > > Signed-off-by: Dong Aisheng > --- > include/linux/can/dev.h | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h > index 6992afc..fe3be29 100644 > --- a/include/linux/can/dev.h > +++ b/include/linux/can/dev.h > @@ -99,6 +99,11 @@ inval_skb: > return 1; > } > > +static inline int can_is_canfd_skb(struct sk_buff *skb) > +{ > + return skb->protocol == htons(ETH_P_CANFD); return skb->len == CANFD_MTU; Please take the length as distinction as we do it in linux/net/can/ too. You can add my Acked-by: Oliver Hartkopp in the updated post then. Regards, Oliver