netdev - [PATCH] net/80211: simplify mesh code

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Message-ID: <20200604214157.GA9737@amd>
Date:   Thu, 4 Jun 2020 23:41:57 +0200
From:   Pavel Machek <pavel@....cz>
To:     johannes@...solutions.net, davem@...emloft.net, kuba@...nel.org,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        trivial@...nel.org
Subject: [PATCH] net/80211: simplify mesh code


Doing mod_timer() conditionaly is easier than conditionally unlocking
and jumping around...

Signed-off-by: Pavel Machek (CIP) <pavel@...x.de>

diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index aa5150929996..02cde0fd08fe 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -1105,11 +1105,8 @@ void mesh_path_start_discovery(struct ieee80211_sub_if_data *sdata)
 			       ttl, lifetime, 0, ifmsh->preq_id++, sdata);
 
 	spin_lock_bh(&mpath->state_lock);
-	if (mpath->flags & MESH_PATH_DELETED) {
-		spin_unlock_bh(&mpath->state_lock);
-		goto enddiscovery;
-	}
-	mod_timer(&mpath->timer, jiffies + mpath->discovery_timeout);
+	if (!(mpath->flags & MESH_PATH_DELETED))
+		mod_timer(&mpath->timer, jiffies + mpath->discovery_timeout);
 	spin_unlock_bh(&mpath->state_lock);
 
 enddiscovery:

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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