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Re: mac80211 driver interface semantics

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On Fri, 2007-08-03 at 11:27 +0100, Andy Green wrote:

> Inside that question, if you mark up skb->ip_summed with CHECKSUM_NONE,
> include/linux/skbuff.h says this:
> 
> /* A. Checksumming of received packets by device.
>  *
>  *      NONE: device failed to checksum this packet.
>  *              skb->csum is undefined.
> 
> If we mark up the skb with FCS-broken packets with that, maybe it would
> be compatible with the networking stack for this purpose.

No, that's the IP checksum. It may or may not be broken if the FCS CRC
fails.

johannes

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