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Date: Wed, 25 Nov 2020 21:34:29 +0100 From: Andrew Lunn <andrew@...n.ch> To: George McCollister <george.mccollister@...il.com> Cc: Vivien Didelot <vivien.didelot@...il.com>, Florian Fainelli <f.fainelli@...il.com>, Vladimir Oltean <olteanv@...il.com>, "David S . Miller " <davem@...emloft.net>, netdev@...r.kernel.org, devicetree@...r.kernel.org Subject: Re: [PATCH net-next v2 1/3] dsa: add support for Arrow XRS700x tag trailer > +static struct sk_buff *xrs700x_rcv(struct sk_buff *skb, struct net_device *dev, > + struct packet_type *pt) > +{ > + int source_port; > + u8 *trailer; > + > + if (skb_linearize(skb)) > + return NULL; Something for Vladimir: Could this linearise be moved into the core, depending on the tail_tag? > + if (pskb_trim_rcsum(skb, skb->len - 1)) > + return NULL; And the overhead is also in dsa_devlink_ops, so maybe this can be moved as well? Andrew
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