Re: [PATCH] mac80211: make align adjustment code support paged SKB

[Zhu Yi <yi.zhu@intel.com>]

On Fri, 2009-10-30 at 02:58 +0800, Johannes Berg wrote:
> Step 1)
>   fix a few corner cases other drivers might have, and stick the bit
> of
>   code iwlwifi has right before passing the frame to mac80211 into
>   mac80211 as the first thing it does with the frame
> 
> Step 2)
>   Look through rx.c and check how much stuff it really needs
> linearised,
>   and where. I suspect that most of the time it _only_ needs the first
>   two bytes, until it comes to actually passing the frame up.
> 
> Step 3)
>   After the audit, push down the linearizing to where needed, i.e.
>   management frames completely, other frames up to and including the
>   ethernet header, software decryption all of the frame
> 
> Step 4)
>   make software decryption aware of paged SKBs, and remove the
>   linearising in that case

Yes, this sounds like a very good plan.

Thanks,
-yi