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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-24 21:24:00 +08:00
linux-next/net/core
Krishna Kumar e93737b0f0 net: Handle NETREG_UNINITIALIZED devices correctly
Fix two problems:

1. If unregister_netdevice_many() is called with both registered
   and unregistered devices, rollback_registered_many() bails out
   when it reaches the first unregistered device. The processing
   of the prior registered devices is unfinished, and the
   remaining devices are skipped, and possible registered netdev's
   are leaked/unregistered.

2. System hangs or panics depending on how the devices are passed,
   since when netdev_run_todo() runs, some devices were not fully
   processed.

Tested by passing intermingled unregistered and registered vlan
devices to unregister_netdevice_many() as follows:
	1. dev, fake_dev1, fake_dev2: hangs in run_todo
	   ("unregister_netdevice: waiting for eth1.100 to become
	    free. Usage count = 1")
	2. fake_dev1, dev, fake_dev2: failure during de-registration
	   and next registration, followed by a vlan driver Oops
	   during subsequent registration.

Confirmed that the patch fixes both cases.

Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-11 15:11:45 -08:00
..
datagram.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-11-06 00:55:55 -08:00
dev_mcast.c net: Rationalise email address: Network Specific Parts 2008-10-13 19:01:08 -07:00
dev.c net: Handle NETREG_UNINITIALIZED devices correctly 2009-12-11 15:11:45 -08:00
drop_monitor.c net: Replace old style lock initializer 2009-11-07 00:46:34 -08:00
dst.c net: speedup dst_release() 2008-11-14 00:53:54 -08:00
ethtool.c ethtool: Add reset operation 2009-10-07 01:10:44 -07:00
fib_rules.c net: Allow fib_rule_unregister to batch 2009-12-03 12:22:55 -08:00
filter.c filter: Add SKF_AD_QUEUE instruction 2009-10-20 01:06:22 -07:00
flow.c netns xfrm: lookup in netns 2008-11-25 17:35:18 -08:00
gen_estimator.c net: restore gnet_stats_basic to previous definition 2009-08-17 21:33:49 -07:00
gen_stats.c pkt_sched: gen_estimator: Dont report fake rate estimators 2009-10-07 01:07:42 -07:00
iovec.c net: Fix memcpy_toiovecend() to use the right offset 2009-06-08 00:25:39 -07:00
kmap_skb.h [PATCH] severing skbuff.h -> highmem.h 2006-12-04 02:00:29 -05:00
link_watch.c linkwatch: linkwatch_forget_dev() to speedup device dismantle 2009-11-18 05:03:11 -08:00
Makefile skbuff: remove skb_dma_map/unmap 2009-12-02 19:57:15 -08:00
neighbour.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-12-08 07:55:01 -08:00
net_namespace.c netns: Add an explicit rcu_barrier to unregister_pernet_{device|subsys} 2009-12-03 12:22:03 -08:00
net-sysfs.c net: use net_eq to compare nets 2009-11-25 15:14:13 -08:00
net-sysfs.h netns: Fix device renaming for sysfs 2008-05-02 17:00:58 -07:00
net-traces.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 2009-06-15 03:02:23 -07:00
netevent.c [NET]: net/core/netevent.c should #include <net/netevent.h> 2007-07-05 17:40:27 -07:00
netpoll.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-09-02 00:32:56 -07:00
pktgen.c net: Move && and || to end of previous line 2009-11-29 16:55:45 -08:00
request_sock.c net: convert BUG_TRAP to generic WARN_ON 2008-07-25 21:43:18 -07:00
rtnetlink.c net: Support specifying the network namespace upon device creation. 2009-11-08 00:53:51 -08:00
scm.c Merge branch 'master' into next 2008-11-18 18:52:37 +11:00
skbuff.c net: rename skb->iif to skb->skb_iif 2009-11-20 15:35:04 -08:00
sock.c net: Fix build warning in sock_bindtodevice(). 2009-11-05 22:37:11 -08:00
stream.c tcp: tcp_prequeue() can use keyed wakeups 2009-05-17 20:44:43 -07:00
sysctl_net_core.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-12-08 07:55:01 -08:00
user_dma.c net/core/user_dma.c: Use frag list abstraction interfaces. 2009-06-09 00:19:10 -07:00
utils.c printk: Remove ratelimit.h from kernel.h 2009-09-22 16:18:09 +02:00