Search Linux Wireless

Re: [RFC PATCHv2] mac80211: Fix circular locking dependency in ARP filter handling

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, 2010-06-08 at 10:03 +0200, ext Johannes Berg wrote:
> On Tue, 2010-06-08 at 09:24 +0300, Juuso Oikarinen wrote:
> 
> > @@ -161,10 +161,20 @@ enum ieee80211_bss_change {
> >  	BSS_CHANGED_BEACON_ENABLED	= 1<<9,
> >  	BSS_CHANGED_CQM			= 1<<10,
> >  	BSS_CHANGED_IBSS		= 1<<11,
> > +#ifdef CONFIG_INET
> > +	BSS_CHANGED_ARP_ADDR_LIST	= 1<<12,
> > +#endif
> 
> Ick, don't do that, all drivers would end up littered with ifdefs.
>  
> > @@ -220,6 +235,10 @@ struct ieee80211_bss_conf {
> >  	s32 cqm_rssi_thold;
> >  	u32 cqm_rssi_hyst;
> >  	enum nl80211_channel_type channel_type;
> > +#ifdef CONFIG_INET
> > +	__be32 arp_addr_list[IEEE80211_BSS_ARP_ADDR_LIST_LEN];
> > +	u8 arp_addr_cnt;
> > +#endifs
> 
> same here.
> 
> > @@ -851,6 +851,10 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
> >  	    sdata->vif.bss_conf.cqm_rssi_thold)
> >  		bss_info_changed |= BSS_CHANGED_CQM;
> >  
> > +#ifdef CONFIG_INET
> > +	bss_info_changed |= BSS_CHANGED_ARP_ADDR_LIST;
> > +#endif
> > +
> 
> I don't see why you can't set that unconditionally here either, it'll
> just be an empty list always.

I was about to send the patch without the ifdefs, but was unsure about
the policy here so I decided to add at the at the last minute.

Our testing guy found a bug too - the condition for the max number of
IP's is wrong, it will take at most 3 addresses currently.

> Otherwise looks pretty good.

As you say it looks OK, I'll remove the above #ifdef's, fix that one bug
(and others if/when our tester dude finds more) and resubmit. 

-Juuso

> johannes
> 


--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Host AP]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Linux Kernel]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Samba]     [Device Mapper]
  Powered by Linux