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Date: Thu, 31 May 2007 07:13:14 +0200 From: Oliver Hartkopp <oliver@...tkopp.net> To: Patrick McHardy <kaber@...sh.net> CC: Urs Thuermann <urs@...ogud.escape.de>, David Miller <davem@...emloft.net>, Thomas Gleixner <tglx@...utronix.de>, Oliver Hartkopp <oliver.hartkopp@...kswagen.de>, Urs Thuermann <urs.thuermann@...kswagen.de>, netdev@...r.kernel.org Subject: Re: [patch 5/7] CAN: Add virtual CAN netdevice driver Patrick McHardy wrote: > Oliver Hartkopp wrote: > >> Btw. it's really worth to look at it again. I just had the idea to >> access the loopback flag via skb->sk->opt->loopback (argpfl!) on the TX >> path and skb->sk on the RX path. This would avoid skb->sk to be set to >> NULL but need to have this loopback flag to be implemented in each CAN >> socket opt. >> > > > Yes, thats what I wanted to suggest. You should even be able > to use skb->sk->opt->loopback on the receive path before you > queue the packet to the socket. > Using skb->sk->opt->loopback on the receive path is not possible as you also have to deal with 'real' data received from a 'real' netdevice, where no sk is bound to the skb. The idea is to check on the rx path , if sbk->sk is 'me' and then trash the packet according to my sockopt settings. Regards, Oliver - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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