Return-path: Received: from mail-io0-f196.google.com ([209.85.223.196]:34944 "EHLO mail-io0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752689AbcF1M2C (ORCPT ); Tue, 28 Jun 2016 08:28:02 -0400 Received: by mail-io0-f196.google.com with SMTP id u25so1948471iou.2 for ; Tue, 28 Jun 2016 05:28:01 -0700 (PDT) Date: Tue, 28 Jun 2016 08:27:47 -0400 From: Bob Copeland To: Yaniv Machani Cc: linux-kernel@vger.kernel.org, Johannes Berg , "David S . Miller" , linux-wireless@vger.kernel.org, netdev@vger.kernel.org, Maital Hahn Subject: Re: [PATCH 2/4] mac80211/cfg: mesh: fix healing time when a mesh peer is disconnecting Message-ID: <20160628122747.GA7757@localhost> (sfid-20160628_142835_892590_1DA10E15) References: <20160628111307.8784-1-yanivma@ti.com> <20160628111307.8784-2-yanivma@ti.com> <20160628111307.8784-3-yanivma@ti.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20160628111307.8784-3-yanivma@ti.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Tue, Jun 28, 2016 at 02:13:05PM +0300, Yaniv Machani wrote: > From: Maital Hahn > > Once receiving a CLOSE action frame from the disconnecting peer, > flush all entries in the path table which has this peer as the > next hop. Please address the user-visible behavior in your commit messages. Does it crash? Does it send frames to an invalid peer? Do frames get dropped? > In addition, upon receiving a packet, if next hop is not found, > trigger PERQ immidiatly, instead of just putting it in the queue. "PREQ" Please split this into a separate patch that we can review separately (and also give the "why" in the commit log). > Signed-off-by: Maital Hahn > Acked-by: Yaniv Machani > --- > net/mac80211/cfg.c | 1 + > net/mac80211/mesh.c | 3 ++- > net/mac80211/mesh_hwmp.c | 42 +++++++++++++++++++++++++----------------- > 3 files changed, 28 insertions(+), 18 deletions(-) > > diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c > index 0c12e40..f876ef7 100644 > --- a/net/mac80211/cfg.c > +++ b/net/mac80211/cfg.c > @@ -1011,6 +1011,7 @@ static void sta_apply_mesh_params(struct ieee80211_local *local, > if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) > changed = mesh_plink_dec_estab_count(sdata); > sta->mesh->plink_state = params->plink_state; > + mesh_path_flush_by_nexthop(sta); This isn't necessary, caller should already be doing mesh_path_flush_by_nexthop() in every case I could see. Besides it cannot be done under plink lock. > +++ b/net/mac80211/mesh.c > @@ -159,7 +159,8 @@ void mesh_sta_cleanup(struct sta_info *sta) > if (!sdata->u.mesh.user_mpm) { > changed |= mesh_plink_deactivate(sta); > del_timer_sync(&sta->mesh->plink_timer); > - } > + } else > + mesh_path_flush_by_nexthop(sta); And this is already fixed in mac80211-next. -- Bob Copeland %% http://bobcopeland.com/