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From: David Howells <dhowells@redhat.com>
To: willemb@google.com
Cc: dhowells@redhat.com, netdev@vger.kernel.org
Subject: Getting at the UDP headers from ->data_ready()
Date: Mon, 11 Apr 2016 22:04:09 +0100	[thread overview]
Message-ID: <19466.1460408649@warthog.procyon.org.uk> (raw)

Hi Willem,

With regards to:

    commit 4d0fc73ebe94ac984a187f21fbf4f3a1ac846f5a
    Author: Willem de Bruijn <willemb@google.com>
    Date:   Thu Apr 7 11:44:59 2016 -0400

    rxrpc: do not pull udp headers on receive
    
    Commit e6afc8ace6dd modified the udp receive path by pulling the udp
    header before queuing an skbuff onto the receive queue.
 
Does that mean that I can no longer access the UDP header via udp_hdr(skb)
from with the ->data_ready() handler?

I'm guessing that's not actually the case since ip_hdr(skb) seems to work - or
is that something I shouldn't be using since the part of the buffer containing
the IP header might've been discarded?

David

             reply	other threads:[~2016-04-11 21:04 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-11 21:04 David Howells [this message]
2016-04-11 21:18 ` Getting at the UDP headers from ->data_ready() Willem de Bruijn
2016-04-11 21:23   ` David Howells

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