From: Mohammed Shafi Shajakhan <mohammed@codeaurora.org> To: Ben Greear <greearb@candelatech.com> Cc: linux-wireless@vger.kernel.org, ath10k@lists.infradead.org Subject: Re: [PATCH v2 3/5] ath10k: Add WARN_ON if we over-write peer-map pointer. Date: Tue, 10 May 2016 22:08:26 +0530 [thread overview] Message-ID: <20160510163826.GB21638@atheros-ThinkPad-T61> (raw) In-Reply-To: <5731F328.30803@candelatech.com> On Tue, May 10, 2016 at 07:41:44AM -0700, Ben Greear wrote: > > > On 05/10/2016 12:12 AM, Mohammed Shafi Shajakhan wrote: > >Hi Ben, > > > >On Fri, Apr 01, 2016 at 02:12:10PM -0700, greearb@candelatech.com wrote: > >>From: Ben Greear <greearb@candelatech.com> > >> > >>Not sure this can happen, but seems like a reasonable sanity > >>check. > > > >[shafi] possibly if the peer is removed and the bit is not cleared in the driver > >? when the new peer occupies the slot > > A firmware bug could cause this, but I never saw this WARN hit. Still seems like > a good sanity check to me, though...it would be quite hard to debug this sort of bug > if it actually did happen. [shafi] yeah its good to have, in one of the case i saw a duplicate event (though its harmless ) > > > > >> > >>Signed-off-by: Ben Greear <greearb@candelatech.com> > >>--- > >> drivers/net/wireless/ath/ath10k/txrx.c | 1 + > >> 1 file changed, 1 insertion(+) > >> > >>diff --git a/drivers/net/wireless/ath/ath10k/txrx.c b/drivers/net/wireless/ath/ath10k/txrx.c > >>index a779a4e..2edef8a 100644 > >>--- a/drivers/net/wireless/ath/ath10k/txrx.c > >>+++ b/drivers/net/wireless/ath/ath10k/txrx.c > >>@@ -309,6 +309,7 @@ void ath10k_peer_map_event(struct ath10k_htt *htt, > >> ath10k_warn(ar, /*ATH10K_DBG_HTT,*/ "htt peer map vdev %d peer %pM id %d\n", > >> ev->vdev_id, ev->addr, ev->peer_id); > >> > >>+ WARN_ON(ar->peer_map[ev->peer_id] && (ar->peer_map[ev->peer_id] != peer)); > >> ar->peer_map[ev->peer_id] = peer; > >> set_bit(ev->peer_id, peer->peer_ids); > >> exit: > >>-- > >>2.4.3 > > > >regards, > >shafi > > > >> > >> > >>_______________________________________________ > >>ath10k mailing list > >>ath10k@lists.infradead.org > >>http://lists.infradead.org/mailman/listinfo/ath10k > > > >_______________________________________________ > >ath10k mailing list > >ath10k@lists.infradead.org > >http://lists.infradead.org/mailman/listinfo/ath10k > > > > -- > Ben Greear <greearb@candelatech.com> > Candela Technologies Inc http://www.candelatech.com > > _______________________________________________ > ath10k mailing list > ath10k@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/ath10k
WARNING: multiple messages have this Message-ID (diff)
From: Mohammed Shafi Shajakhan <mohammed@codeaurora.org> To: Ben Greear <greearb@candelatech.com> Cc: linux-wireless@vger.kernel.org, ath10k@lists.infradead.org Subject: Re: [PATCH v2 3/5] ath10k: Add WARN_ON if we over-write peer-map pointer. Date: Tue, 10 May 2016 22:08:26 +0530 [thread overview] Message-ID: <20160510163826.GB21638@atheros-ThinkPad-T61> (raw) In-Reply-To: <5731F328.30803@candelatech.com> On Tue, May 10, 2016 at 07:41:44AM -0700, Ben Greear wrote: > > > On 05/10/2016 12:12 AM, Mohammed Shafi Shajakhan wrote: > >Hi Ben, > > > >On Fri, Apr 01, 2016 at 02:12:10PM -0700, greearb@candelatech.com wrote: > >>From: Ben Greear <greearb@candelatech.com> > >> > >>Not sure this can happen, but seems like a reasonable sanity > >>check. > > > >[shafi] possibly if the peer is removed and the bit is not cleared in the driver > >? when the new peer occupies the slot > > A firmware bug could cause this, but I never saw this WARN hit. Still seems like > a good sanity check to me, though...it would be quite hard to debug this sort of bug > if it actually did happen. [shafi] yeah its good to have, in one of the case i saw a duplicate event (though its harmless ) > > > > >> > >>Signed-off-by: Ben Greear <greearb@candelatech.com> > >>--- > >> drivers/net/wireless/ath/ath10k/txrx.c | 1 + > >> 1 file changed, 1 insertion(+) > >> > >>diff --git a/drivers/net/wireless/ath/ath10k/txrx.c b/drivers/net/wireless/ath/ath10k/txrx.c > >>index a779a4e..2edef8a 100644 > >>--- a/drivers/net/wireless/ath/ath10k/txrx.c > >>+++ b/drivers/net/wireless/ath/ath10k/txrx.c > >>@@ -309,6 +309,7 @@ void ath10k_peer_map_event(struct ath10k_htt *htt, > >> ath10k_warn(ar, /*ATH10K_DBG_HTT,*/ "htt peer map vdev %d peer %pM id %d\n", > >> ev->vdev_id, ev->addr, ev->peer_id); > >> > >>+ WARN_ON(ar->peer_map[ev->peer_id] && (ar->peer_map[ev->peer_id] != peer)); > >> ar->peer_map[ev->peer_id] = peer; > >> set_bit(ev->peer_id, peer->peer_ids); > >> exit: > >>-- > >>2.4.3 > > > >regards, > >shafi > > > >> > >> > >>_______________________________________________ > >>ath10k mailing list > >>ath10k@lists.infradead.org > >>http://lists.infradead.org/mailman/listinfo/ath10k > > > >_______________________________________________ > >ath10k mailing list > >ath10k@lists.infradead.org > >http://lists.infradead.org/mailman/listinfo/ath10k > > > > -- > Ben Greear <greearb@candelatech.com> > Candela Technologies Inc http://www.candelatech.com > > _______________________________________________ > ath10k mailing list > ath10k@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/ath10k _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k
next prev parent reply other threads:[~2016-05-10 16:38 UTC|newest] Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-04-01 21:12 [PATCH v2 1/5] ath10k: Ensure txrx-compl-task is stopped when cleaning htt-tx greearb 2016-04-01 21:12 ` greearb 2016-04-01 21:12 ` [PATCH v2 2/5] ath10k: Ensure peer_map references are cleaned up greearb 2016-04-01 21:12 ` greearb 2016-04-01 21:12 ` [PATCH v2 3/5] ath10k: Add WARN_ON if we over-write peer-map pointer greearb 2016-04-01 21:12 ` greearb 2016-05-10 7:12 ` Mohammed Shafi Shajakhan 2016-05-10 7:12 ` Mohammed Shafi Shajakhan 2016-05-10 14:41 ` Ben Greear 2016-05-10 14:41 ` Ben Greear 2016-05-10 16:38 ` Mohammed Shafi Shajakhan [this message] 2016-05-10 16:38 ` Mohammed Shafi Shajakhan 2016-07-08 6:48 ` [v2,3/5] " Kalle Valo 2016-07-08 6:48 ` Kalle Valo 2016-04-01 21:12 ` [PATCH v2 4/5] ath10k: Clean up peer when sta goes away greearb 2016-04-01 21:12 ` greearb 2016-04-01 21:12 ` [PATCH v2 5/5] ath10k: Fix deadlock when peer cannot be created greearb 2016-04-01 21:12 ` greearb 2016-05-09 17:19 ` Ben Greear 2016-05-09 17:19 ` Ben Greear 2016-05-09 17:54 ` Manoharan, Rajkumar 2016-05-09 17:54 ` Manoharan, Rajkumar 2016-05-09 17:58 ` Ben Greear 2016-05-09 17:58 ` Ben Greear 2016-05-13 14:07 ` Valo, Kalle 2016-05-13 14:07 ` Valo, Kalle 2016-06-06 17:24 ` [v2,5/5] " Kalle Valo 2016-06-06 17:24 ` Kalle Valo 2016-05-10 6:48 ` [PATCH v2 1/5] ath10k: Ensure txrx-compl-task is stopped when cleaning htt-tx Mohammed Shafi Shajakhan 2016-05-10 6:48 ` Mohammed Shafi Shajakhan 2016-05-10 14:39 ` Ben Greear 2016-05-10 14:39 ` Ben Greear 2016-05-10 16:36 ` Mohammed Shafi Shajakhan 2016-05-10 16:36 ` Mohammed Shafi Shajakhan 2016-07-08 6:43 ` [v2, " Kalle Valo 2016-07-08 6:43 ` Kalle Valo
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