Date: Fri, 16 Sep 2011 04:26:40 +0000 (UTC) From: Adrian Chadd <adrian@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r225603 - user/adrian/if_ath_tx/sys/dev/ath Message-ID: <201109160426.p8G4QeaO003853@svn.freebsd.org>
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Author: adrian Date: Fri Sep 16 04:26:40 2011 New Revision: 225603 URL: http://svn.freebsd.org/changeset/base/225603 Log: No need to gate the CABQ if the queue is empty. Obtained from: Atheros Modified: user/adrian/if_ath_tx/sys/dev/ath/if_ath.c Modified: user/adrian/if_ath_tx/sys/dev/ath/if_ath.c ============================================================================== --- user/adrian/if_ath_tx/sys/dev/ath/if_ath.c Fri Sep 16 04:09:53 2011 (r225602) +++ user/adrian/if_ath_tx/sys/dev/ath/if_ath.c Fri Sep 16 04:26:40 2011 (r225603) @@ -2764,7 +2764,8 @@ ath_beacon_generate(struct ath_softc *sc sc->sc_stats.ast_cabq_xmit += nmcastq; } /* NB: gated by beacon so safe to start here */ - ath_hal_txstart(ah, cabq->axq_qnum); + if (! TAILQ_EMPTY(&(cabq->axq_q))) + ath_hal_txstart(ah, cabq->axq_qnum); ATH_TXQ_UNLOCK(&avp->av_mcastq); ATH_TXQ_UNLOCK(cabq); }
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