On Tue, Sep 30, 2014 at 01:13:24PM +0200, Alexander Aring wrote: > Hi Jukka, > > On Tue, Sep 30, 2014 at 01:55:14PM +0300, Jukka Rissanen wrote: > > Hi Alex, > > > > On ti, 2014-09-30 at 12:03 +0200, Alexander Aring wrote: > > > On Tue, Sep 30, 2014 at 03:23:09PM +0530, Varka Bhadram wrote: > > > > On 09/30/2014 03:13 PM, Alexander Aring wrote: > > > > > > > > > >>May be IEEE-802.11 packets send to IPv6 Layer. In that case Its not dead code. > > > > >> > > > > > > > > > >802.11 data frames will be converted to ethernet frames. > > > > > > > > > >Why we now talking about 802.11? 6LoWPAN set always PACKET_HOST and then > > > > >we never have PACKET_BROADCAST set in IPv6 Layer. Then matching pkt_type > > > > >with PACKET_BROADCAST is dead code. > > > > > > > > We don't know in which scenario the IPv6 Layer checking that statement. > > > > > > > > The control is reaching there when they got ICMPv6 message of typeICMPV6_MGM_REPORT <http://lxr.free-electrons.com/ident?i=ICMPV6_MGM_REPORT> [1] . > > > > > > > > We don't know the significance of it..?? > > > > > > > > > > Yep, we don't know it and it doesn't matter, but override the pkt_type > > > to PACKET_HOST when we have a broadcast frame is wrong. > > > > > > Broadcast means it's IPv6 BROADCAST or MULTICAST, the detection if > > > LOGICAL MULTICAST over BROADCAST xor BROADCAST over BROADCAST is IPv6 Layer. > > > > I probably missed something from earlier mails but why are we talking > > about broadcast with IPv6? After all IPv6 supports only multicast and > > broadcasting is not supported. > > The issue what we talking about is: > In a nutshell: We have issues at [1] and [3] because [0]. For better performance we should something do like [1] at 6LoWPAN packet receive function for example [2]. :-) - Alex [0] http://git.kernel.org/cgit/linux/kernel/git/bluetooth/bluetooth-next.git/tree/net/6lowpan/iphc.c?id=f19f4f9525cf32f97341fac20ce66392e86a1b67#n192 [1] http://lxr.free-electrons.com/source/net/ipv6/ip6_input.c#L72 [2] http://lxr.free-electrons.com/source/net/ieee802154/6lowpan_rtnl.c#L465 [3] http://lxr.free-electrons.com/source/net/ipv6/mcast.c#L1413 -- To unsubscribe from this list: send the line "unsubscribe linux-wpan" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
