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From: "Duncan Barclay" <dmlb@dmlb.org>
To: "Harti Brandt" <brandt@fokus.fraunhofer.de>
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Date: Tue, 26 Aug 2003 08:43:01 +0100
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cc: freebsd-hackers@freebsd.org
Subject: Re: mbuf/mbuf cluster adjustments (bcm driver)
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From: "Harti Brandt" <brandt@fokus.fraunhofer.de>

> On Mon, 25 Aug 2003, Duncan Barclay wrote:
>
> DB>I then account for this header by doing an m_adj(m, 30) before
> DB>if_input(). However, this doesn't seem to work all the time. Looking at
> DB>the code for m_adj I don't think it is meant for use with mbuf
> DB>clusters. Is there a tidy way of trimming this header off from the mbuf
> DB>cluster? I'm going to first try manually copying stuff to confirm that
> DB>this is the problem and then try m_pullup followed by m_adj.
>
> m_adj should work on any mbuf whether with a cluster or not given that
> you mbuf is setup correctly. Where do you see a dependence on not beeing a
> cluster in that code?

Just before I went to bed last night I think I realised what the problem is.
I don't think I set the mbuf up correctly. doh!

Thanks for letting me know it should work.

> harti

Duncan