Author: adrian
Date: Fri Mar 9 08:36:30 2012
New Revision: 232719
URL: http://svn.freebsd.org/changeset/base/232719
Log:
Insert extra paranoia into the ath(4) driver.
This function must be called with both the source and destination TXQs
locked or things will get hairy.
I added this as part of some debugging in a PR but it turned out to not
be the cause. I still think it's -correct- so, here it is.
Modified:
head/sys/dev/ath/if_ath.c
Modified: head/sys/dev/ath/if_ath.c
==============================================================================
--- head/sys/dev/ath/if_ath.c Fri Mar 9 07:53:44 2012 (r232718)
+++ head/sys/dev/ath/if_ath.c Fri Mar 9 08:36:30 2012 (r232719)
@@ -2908,6 +2908,10 @@ ath_beacon_update(struct ieee80211vap *v
static void
ath_txqmove(struct ath_txq *dst, struct ath_txq *src)
{
+
+ ATH_TXQ_LOCK_ASSERT(dst);
+ ATH_TXQ_LOCK_ASSERT(src);
+
TAILQ_CONCAT(&dst->axq_q, &src->axq_q, bf_list);
dst->axq_link = src->axq_link;
src->axq_link = NULL;
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