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From: Simon Wunderlich <sw@simonwunderlich.de>
To: b.a.t.m.a.n@lists.open-mesh.org
Cc: "Linus Lüssing" <linus.luessing@c0d3.blue>
Subject: Re: [PATCH maint v2 4/4] batman-adv: mcast: fix duplicate mcast packets from BLA backbone to mesh
Date: Wed, 09 Sep 2020 14:15:51 +0200	[thread overview]
Message-ID: <3191833.Be6Uz4tNrB@prime> (raw)
In-Reply-To: <20200904182803.8428-5-linus.luessing@c0d3.blue>

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On Friday, September 4, 2020 8:28:03 PM CEST Linus Lüssing wrote:
> @@ -1626,7 +1626,8 @@ bool batadv_bla_check_bcast_duplist(struct batadv_priv
> *bat_priv, if (entry->crc != crc)
>                         continue;
> 
> -               if (batadv_compare_eth(entry->orig, bcast_packet->orig))
> +               if (!is_zero_ether_addr(entry->orig) &&
> +                   batadv_compare_eth(entry->orig, orig))
>                         continue;
> 
>                 /* this entry seems to match: same crc, not too old,

Shouldn't this check also be skipped if the orig parameter is a zero mac 
address? i.e.:

if (!is_zero_ether_addr(orig)) {
	if (!is_zero_ether_addr(entry->orig) && batadv_compare_eth(entry->orig, 
orig))
		continue;
}

Whether orig is zero can probably be checked once before the loop and the 
result cached in a bool variable.

A little comment may also be nice to explain this part a bit better.

The rest looks good.

Cheers,
      Simon

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  reply	other threads:[~2020-09-09 12:15 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-04 18:27 [PATCH maint v2 0/4] batman-adv: mcast: TT/BLA fixes Linus Lüssing
2020-09-04 18:28 ` [PATCH maint v2 1/4] batman-adv: mcast/TT: fix wrongly dropped or rerouted packets Linus Lüssing
2020-09-09 11:50   ` Simon Wunderlich
2020-09-04 18:28 ` [PATCH maint v2 2/4] batman-adv: mcast: fix duplicate mcast packets in BLA backbone from LAN Linus Lüssing
2020-09-09 11:38   ` Simon Wunderlich
2020-09-04 18:28 ` [PATCH maint v2 3/4] batman-adv: mcast: fix duplicate mcast packets in BLA backbone from mesh Linus Lüssing
2020-09-05  7:14   ` Sven Eckelmann
2020-09-09 12:06   ` Simon Wunderlich
2020-09-09 14:53     ` Linus Lüssing
2020-09-09 15:03       ` Linus Lüssing
2020-09-09 20:14       ` Linus Lüssing
2020-09-10  9:34       ` Simon Wunderlich
2020-09-04 18:28 ` [PATCH maint v2 4/4] batman-adv: mcast: fix duplicate mcast packets from BLA backbone to mesh Linus Lüssing
2020-09-09 12:15   ` Simon Wunderlich [this message]
2020-09-09 15:27     ` Linus Lüssing
2020-09-10  9:32       ` Simon Wunderlich

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