kern/170433: commit references a PR

[dfilter service]

The following reply was made to PR kern/170433; it has been noted by GNATS.

From: dfilter at FreeBSD.ORG (dfilter service)
To: bug-followup at FreeBSD.org
Cc:  
Subject: Re: kern/170433: commit references a PR
Date: Tue,  7 Aug 2012 00:43:00 +0000 (UTC)

 Author: adrian
 Date: Tue Aug  7 00:42:46 2012
 New Revision: 239120
 URL: http://svn.freebsd.org/changeset/base/239120
 
 Log:
   Correct re-initialise the link pointer to be the final descriptor in
   the last buffer.
   
   This fixes traffic stalls that were occuring with stuck beacon events.
   
   PR:		kern/170433
 
 Modified:
   head/sys/dev/ath/if_ath_tx.c
 
 Modified: head/sys/dev/ath/if_ath_tx.c
 ==============================================================================
 --- head/sys/dev/ath/if_ath_tx.c	Tue Aug  7 00:34:15 2012	(r239119)
 +++ head/sys/dev/ath/if_ath_tx.c	Tue Aug  7 00:42:46 2012	(r239120)
 @@ -751,7 +751,7 @@ ath_legacy_tx_dma_restart(struct ath_sof
  		return;
  
  	ath_hal_puttxbuf(ah, txq->axq_qnum, bf->bf_daddr);
 -	ath_hal_gettxdesclinkptr(ah, bf->bf_lastds, &txq->axq_link);
 +	ath_hal_gettxdesclinkptr(ah, bf_last->bf_lastds, &txq->axq_link);
  	ath_hal_txstart(ah, txq->axq_qnum);
  }
  
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