* potential bug in bnep_net_set_mc_list()
@ 2010-06-18 23:09 Dan Carpenter
2010-06-19 0:22 ` Gustavo F. Padovan
0 siblings, 1 reply; 5+ messages in thread
From: Dan Carpenter @ 2010-06-18 23:09 UTC (permalink / raw)
To: Jiri Pirko; +Cc: linux-bluetooth, netdev
This is from ff6e2163f28a: "net: convert multiple drivers to use
netdev_for_each_mc_addr, part7"
net/bluetooth/bnep/netdev.c
101 i = 0;
102 netdev_for_each_mc_addr(ha, dev) {
103 if (i == BNEP_MAX_MULTICAST_FILTERS)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
104 break;
105 memcpy(__skb_put(skb, ETH_ALEN), ha->addr, ETH_ALEN);
106 memcpy(__skb_put(skb, ETH_ALEN), ha->addr, ETH_ALEN);
107 }
"i" is never incremented here so the check is always false.
regards,
dan carpenter
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: potential bug in bnep_net_set_mc_list()
2010-06-18 23:09 potential bug in bnep_net_set_mc_list() Dan Carpenter
@ 2010-06-19 0:22 ` Gustavo F. Padovan
2010-06-19 0:24 ` [PATCH] Bluetooth: Bring back var 'i' increment Gustavo F. Padovan
0 siblings, 1 reply; 5+ messages in thread
From: Gustavo F. Padovan @ 2010-06-19 0:22 UTC (permalink / raw)
To: Dan Carpenter; +Cc: Jiri Pirko, linux-bluetooth, netdev
Hi Dan,
* Dan Carpenter <error27@gmail.com> [2010-06-19 01:09:17 +0200]:
> This is from ff6e2163f28a: "net: convert multiple drivers to use
> netdev_for_each_mc_addr, part7"
>
> net/bluetooth/bnep/netdev.c
> 101 i = 0;
> 102 netdev_for_each_mc_addr(ha, dev) {
> 103 if (i == BNEP_MAX_MULTICAST_FILTERS)
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> 104 break;
> 105 memcpy(__skb_put(skb, ETH_ALEN), ha->addr, ETH_ALEN);
> 106 memcpy(__skb_put(skb, ETH_ALEN), ha->addr, ETH_ALEN);
> 107 }
>
> "i" is never incremented here so the check is always false.
Bring back the increment should fix this. I'll send a fix for this.
--
Gustavo F. Padovan
http://padovan.org
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH] Bluetooth: Bring back var 'i' increment
2010-06-19 0:22 ` Gustavo F. Padovan
@ 2010-06-19 0:24 ` Gustavo F. Padovan
2010-06-19 0:28 ` Gustavo F. Padovan
0 siblings, 1 reply; 5+ messages in thread
From: Gustavo F. Padovan @ 2010-06-19 0:24 UTC (permalink / raw)
To: linux-bluetooth; +Cc: gustavo, netdev
commit ff6e2163f28a1094fb5ca5950fe2b43c3cf6bc7a accidentally added a
regression on the bnep code. Fixing it.
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
---
net/bluetooth/bnep/netdev.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/net/bluetooth/bnep/netdev.c b/net/bluetooth/bnep/netdev.c
index 0faad5c..8c100c9 100644
--- a/net/bluetooth/bnep/netdev.c
+++ b/net/bluetooth/bnep/netdev.c
@@ -104,6 +104,8 @@ static void bnep_net_set_mc_list(struct net_device *dev)
break;
memcpy(__skb_put(skb, ETH_ALEN), ha->addr, ETH_ALEN);
memcpy(__skb_put(skb, ETH_ALEN), ha->addr, ETH_ALEN);
+
+ i++;
}
r->len = htons(skb->len - len);
}
--
1.6.4.4
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH] Bluetooth: Bring back var 'i' increment
2010-06-19 0:24 ` [PATCH] Bluetooth: Bring back var 'i' increment Gustavo F. Padovan
@ 2010-06-19 0:28 ` Gustavo F. Padovan
2010-06-25 5:08 ` David Miller
0 siblings, 1 reply; 5+ messages in thread
From: Gustavo F. Padovan @ 2010-06-19 0:28 UTC (permalink / raw)
To: Gustavo F. Padovan; +Cc: linux-bluetooth, netdev, marcel
* Gustavo F. Padovan <padovan@profusion.mobi> [2010-06-18 21:24:00 -0300]:
> commit ff6e2163f28a1094fb5ca5950fe2b43c3cf6bc7a accidentally added a
> regression on the bnep code. Fixing it.
>
> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
> ---
> net/bluetooth/bnep/netdev.c | 2 ++
> 1 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/net/bluetooth/bnep/netdev.c b/net/bluetooth/bnep/netdev.c
> index 0faad5c..8c100c9 100644
> --- a/net/bluetooth/bnep/netdev.c
> +++ b/net/bluetooth/bnep/netdev.c
> @@ -104,6 +104,8 @@ static void bnep_net_set_mc_list(struct net_device *dev)
> break;
> memcpy(__skb_put(skb, ETH_ALEN), ha->addr, ETH_ALEN);
> memcpy(__skb_put(skb, ETH_ALEN), ha->addr, ETH_ALEN);
> +
> + i++;
> }
> r->len = htons(skb->len - len);
> }
> --
Marcel, if you want I can carry the fix on my tree for -next.
--
Gustavo F. Padovan
http://padovan.org
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] Bluetooth: Bring back var 'i' increment
2010-06-19 0:28 ` Gustavo F. Padovan
@ 2010-06-25 5:08 ` David Miller
0 siblings, 0 replies; 5+ messages in thread
From: David Miller @ 2010-06-25 5:08 UTC (permalink / raw)
To: gustavo; +Cc: padovan, linux-bluetooth, netdev, marcel
From: "Gustavo F. Padovan" <gustavo@padovan.org>
Date: Fri, 18 Jun 2010 21:28:07 -0300
> * Gustavo F. Padovan <padovan@profusion.mobi> [2010-06-18 21:24:00 -0300]:
>
>> commit ff6e2163f28a1094fb5ca5950fe2b43c3cf6bc7a accidentally added a
>> regression on the bnep code. Fixing it.
>>
>> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
...
> Marcel, if you want I can carry the fix on my tree for -next.
I'll apply this bug fix to net-2.6 so it doesn't just rot like it is
currently.
Thanks.
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2010-06-25 5:08 UTC | newest]
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2010-06-18 23:09 potential bug in bnep_net_set_mc_list() Dan Carpenter
2010-06-19 0:22 ` Gustavo F. Padovan
2010-06-19 0:24 ` [PATCH] Bluetooth: Bring back var 'i' increment Gustavo F. Padovan
2010-06-19 0:28 ` Gustavo F. Padovan
2010-06-25 5:08 ` David Miller
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