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Subject: Re: [PATCH] mac80211: allow drivers to indicate failed FCS/PLCP   checksum
From: Johannes Berg <johannes@sipsolutions.net>
To: "John W. Linville" <linville@tuxdriver.com>
Cc: linux-wireless <linux-wireless@vger.kernel.org>,
	Jiri Benc <jbenc@suse.cz>, Michael Wu <flamingice@sourmilk.net>
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Date: Sat, 04 Aug 2007 09:53:23 +0200
Message-Id: <1186214003.21957.6.camel@johannes.berg>
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On Fri, 2007-08-03 at 23:44 +0200, Johannes Berg wrote:

> --- mac80211.orig/net/mac80211/rx.c	2007-08-03 23:06:54.187869508 +0200
> +++ mac80211/net/mac80211/rx.c	2007-08-03 23:39:41.717869508 +0200
> @@ -155,6 +155,7 @@ ieee80211_rx_monitor(struct net_device *
>  		__le16 chan_freq;
>  		__le16 chan_flags;
>  		u8 antsignal;
> +		__le16 rx_flags;
>  	} __attribute__ ((packed)) *rthdr;

Oh. I overlooked the packed attribute there, this additional patch is
needed:

--- mac80211.orig/net/mac80211/rx.c     2007-08-03 23:06:54.187869508 +0200
+++ mac80211/net/mac80211/rx.c  2007-08-03 23:39:41.717869508 +0200
@@ -155,6 +155,7 @@ ieee80211_rx_monitor(struct net_device *
 		__le16 chan_freq;
 		__le16 chan_flags;
 		u8 antsignal;
+		u8 padding_for_rx_flags;
 		__le16 rx_flags;
 	} __attribute__ ((packed)) *rthdr;
 

(patch fabricated by hand so might not apply)

johannes