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From: Marek Lindner <mareklindner@neomailbox.ch>
To: The list for a Better Approach To Mobile Ad-hoc Networking
	<b.a.t.m.a.n@lists.open-mesh.org>
Subject: Re: [B.A.T.M.A.N.] [PATCH 1/2] batman-adv: purge bridge loop avoidance when its disabled
Date: Tue, 17 Nov 2015 16:01:27 +0800	[thread overview]
Message-ID: <1571436.PpFx5574Ye@voltaire> (raw)
In-Reply-To: <1447082453-13117-2-git-send-email-sw@simonwunderlich.de>

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On Monday, November 09, 2015 16:20:52 Simon Wunderlich wrote:
> -BATADV_ATTR_SIF_BOOL(bridge_loop_avoidance, S_IRUGO | S_IWUSR, NULL);
> +BATADV_ATTR_SIF_BOOL(bridge_loop_avoidance, S_IRUGO | S_IWUSR,
> +                    batadv_bla_status_update);
>  #endif

Are we sure this is correct ? The post function is called whether or not there 
actually was a change in the setting. The check in __batadv_store_bool_attr() 
is this:

ret = batadv_store_bool_attr(buff, count, net_dev, attr->name,
                                     attr_store);
if (post_func && ret)
            post_func(net_dev);

Let's ignore for now that ret should be changed to check for '> 0' to avoid 
calling post_func() in case of an error. The return value is always non-
negative unless the input is broken. You could enable BLA while it already is 
enabled which would reset all claim tables. Is that intended ?

Cheers,
Marek

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  reply	other threads:[~2015-11-17  8:01 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-09 15:20 [B.A.T.M.A.N.] [PATCH 0/2] Bridge loop avoidance startup fixes Simon Wunderlich
2015-11-09 15:20 ` [B.A.T.M.A.N.] [PATCH 1/2] batman-adv: purge bridge loop avoidance when its disabled Simon Wunderlich
2015-11-17  8:01   ` Marek Lindner [this message]
2015-11-17 12:00     ` Simon Wunderlich
2015-11-21 21:42   ` Marek Lindner
2015-11-09 15:20 ` [B.A.T.M.A.N.] [PATCH 2/2] batman-adv: increase BLA wait periods to 6 Simon Wunderlich
2015-11-21 21:43   ` [B.A.T.M.A.N.] [PATCH 2/2] batman-adv: increase BLA wait periods to6 Marek Lindner

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