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David S. Miller b43faac690 ipv6: If neigh lookup fails during icmp6 dst allocation, propagate error. 
Don't just succeed with a route that has a NULL neighbour attached.
This follows the behavior of addrconf_dst_alloc().

Allowing this kind of route to end up with a NULL neigh attached will
result in packet drops on output until the route is somehow
invalidated, since nothing will meanwhile try to lookup the neigh
again.

A statistic is bumped for the case where we see a neigh-less route on
output, but the resulting packet drop is otherwise silent in nature,
and frankly it's a hard error for this to happen and ipv6 should do
what ipv4 does which is say something in the kernel logs.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-13 16:51:51 -05:00
..
9p net/9p: Convert net/9p protocol dumps to tracepoints 2011-10-24 11:13:12 -05:00
802 net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
8021q vlan: add 802.1q netpoll support 2011-12-08 19:58:30 -05:00
appletalk net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
atm net: Rename dst_get_neighbour{, _raw} to dst_get_neighbour_noref{, _raw}. 2011-12-05 15:20:19 -05:00
ax25 NET: AX.25: Check ioctl arguments to avoid overflows further down the road. 2011-11-29 00:23:12 -05:00
batman-adv batman-adv: Only write requested number of byte to user buffer 2011-12-12 19:11:07 +08:00
bluetooth Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth-next 2011-12-06 16:02:05 -05:00
bridge net: use IS_ENABLED(CONFIG_IPV6) 2011-12-11 18:25:16 -05:00
caif caif: Replace BUG_ON with WARN_ON. 2011-12-06 17:21:47 -05:00
can can: remove references to berlios mailinglist 2011-10-17 19:22:46 -04:00
ceph Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2011-11-21 12:11:13 -08:00
core net: Remove unused neighbour layer ops. 2011-12-13 16:44:22 -05:00
dcb net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
dccp net: use IS_ENABLED(CONFIG_IPV6) 2011-12-11 18:25:16 -05:00
decnet net: Rename dst_get_neighbour{, _raw} to dst_get_neighbour_noref{, _raw}. 2011-12-05 15:20:19 -05:00
dns_resolver
dsa dsa: Move switch drivers to new directory drivers/net/dsa 2011-11-29 00:21:36 -05:00
econet net: Remove all uses of LL_ALLOCATED_SPACE 2011-11-18 14:37:09 -05:00
ethernet net: don't clear IFF_XMIT_DST_RELEASE in ether_setup 2011-09-15 14:49:44 -04:00
ieee802154 net: Remove all uses of LL_ALLOCATED_SPACE 2011-11-18 14:37:09 -05:00
ipv4 Display maximum tcp memory allocation in kmem cgroup 2011-12-12 19:04:11 -05:00
ipv6 ipv6: If neigh lookup fails during icmp6 dst allocation, propagate error. 2011-12-13 16:51:51 -05:00
ipx net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
irda irttp: Use kmemdup rather than duplicating its implementation 2011-11-21 15:02:17 -05:00
iucv net: more accurate skb truesize 2011-10-13 16:05:07 -04:00
key net: use IS_ENABLED(CONFIG_IPV6) 2011-12-11 18:25:16 -05:00
l2tp l2tp: ensure sk->dst is still valid 2011-11-26 15:57:36 -05:00
lapb wan: make LAPB callbacks const 2011-09-16 19:20:20 -04:00
llc net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
mac80211 mac80211: Remove WARN_ON in apply-ht-override logic. 2011-12-06 16:07:07 -05:00
netfilter net: use IS_ENABLED(CONFIG_IPV6) 2011-12-11 18:25:16 -05:00
netlabel net: use IS_ENABLED(CONFIG_IPV6) 2011-12-11 18:25:16 -05:00
netlink genetlink: Add lockdep_genl_is_held(). 2011-12-03 09:35:07 -08:00
netrom NET: NETROM: Fix formatting. 2011-11-29 00:23:13 -05:00
nfc nfc: Remove function tracer like entry messages 2011-11-30 15:08:38 -05:00
openvswitch openvswitch: small potential memory leak in ovs_vport_alloc() 2011-12-06 12:58:57 -05:00
packet packet: Add needed_tailroom to packet_sendmsg_spkt 2011-11-18 14:37:10 -05:00
phonet Phonet: set the pipe handle using setsockopt 2011-11-18 14:37:40 -05:00
rds rds: drop "select LLIST" 2011-11-14 00:10:50 -05:00
rfkill net: rfkill: convert net/rfkill/* to use module_platform_driver() 2011-11-30 15:08:27 -05:00
rose net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
rxrpc RxRPC: Use kmemdup rather than duplicating its implementation 2011-11-21 15:02:36 -05:00
sched netem: add cell concept to simulate special MAC behavior 2011-12-12 19:44:48 -05:00
sctp net: use IS_ENABLED(CONFIG_IPV6) 2011-12-11 18:25:16 -05:00
sunrpc net: use IS_ENABLED(CONFIG_IPV6) 2011-12-11 18:25:16 -05:00
tipc net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
unix AF_UNIX: Fix poll blocking problem when reading from a stream socket 2011-11-26 16:34:22 -05:00
wanrouter wanrouter: Remove kernel_lock annotations 2011-11-07 13:27:30 -05:00
wimax net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
wireless wireless: disable wext sysfs by default 2011-12-07 15:19:39 -05:00
x25 Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
xfrm net: use IS_ENABLED(CONFIG_IPV6) 2011-12-11 18:25:16 -05:00
compat.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
Kconfig net: Add Open vSwitch kernel components. 2011-12-03 09:35:17 -08:00
Makefile net: Add Open vSwitch kernel components. 2011-12-03 09:35:17 -08:00
nonet.c
socket.c net: add network priority cgroup infrastructure (v4) 2011-11-22 15:22:23 -05:00
sysctl_net.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00