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731073b9c9
linux-next/drivers/net
History
Stanislaw Gruszka 731073b9c9 sky2: initialize napi before registering device 
There is race condition when call netif_napi_add() after
register_netdevice(), as ->open() can be called without napi initialized
and trigger BUG_ON() on napi_enable(), like on below messages:

[    9.699863] sky2: driver version 1.30
[    9.699960] sky2 0000:02:00.0: Yukon-2 EC Ultra chip revision 2
[    9.700020] sky2 0000:02:00.0: irq 45 for MSI/MSI-X
[    9.700498] ------------[ cut here ]------------
[    9.703391] kernel BUG at include/linux/netdevice.h:501!
[    9.703391] invalid opcode: 0000 [#1] PREEMPT SMP
<snip>
[    9.830018] Call Trace:
[    9.830018]  [<fa996169>] sky2_open+0x309/0x360 [sky2]
[    9.830018]  [<c1007210>] ? via_no_dac+0x40/0x40
[    9.830018]  [<c1007210>] ? via_no_dac+0x40/0x40
[    9.830018]  [<c135ed4b>] __dev_open+0x9b/0x120
[    9.830018]  [<c1431cbe>] ? _raw_spin_unlock_bh+0x1e/0x20
[    9.830018]  [<c135efd9>] __dev_change_flags+0x89/0x150
[    9.830018]  [<c135f148>] dev_change_flags+0x18/0x50
[    9.830018]  [<c13bb8e0>] devinet_ioctl+0x5d0/0x6e0
[    9.830018]  [<c13bcced>] inet_ioctl+0x6d/0xa0

To fix the problem patch changes the order of initialization.

Bug report:
https://bugzilla.kernel.org/show_bug.cgi?id=67151

Reported-and-tested-by: ebrahim.azarisooreh@gmail.com
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-27 16:39:53 -08:00
..
appletalk
arcnet drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
bonding bonding: restructure locking of bond_ab_arp_probe() 2014-01-27 13:12:45 -08:00
caif drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
can drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
cris
dsa
ethernet sky2: initialize napi before registering device 2014-01-27 16:39:53 -08:00
fddi drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
hamradio Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-06 17:37:45 -05:00
hippi drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
hyperv Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-06 17:37:45 -05:00
ieee802154 net: ieee802154: remove unnecessary spi_set_drvdata() 2013-12-10 22:31:32 -05:00
irda drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
phy phy: cleanup 10g code 2014-01-19 19:55:50 -08:00
plip net: plip: slight optimization of addr compare 2013-12-31 16:48:33 -05:00
ppp ppp: slight optimization of addr compare 2013-12-26 13:31:33 -05:00
slip
team team: Don't allow team devices to change network namespaces. 2014-01-22 21:57:17 -08:00
usb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-18 00:55:41 -08:00
vmxnet3 drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
wan Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-01-25 11:17:34 -08:00
wimax
wireless Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-01-25 11:17:34 -08:00
xen-netback xen-netback: use new skb_checksum_setup function 2014-01-14 14:24:19 -08:00
dummy.c net: Explicitly initialize u64_stats_sync structures for lockdep 2013-11-06 12:40:25 +01:00
eql.c eql: use __dev_get_by_name instead of dev_get_by_name to find interface 2014-01-14 18:50:46 -08:00
ifb.c net: Explicitly initialize u64_stats_sync structures for lockdep 2013-11-06 12:40:25 +01:00
Kconfig virtio-net: fix build error when CONFIG_AVERAGE is not enabled 2014-01-17 18:58:38 -08:00
LICENSE.SRC
loopback.c drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
macvlan.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-14 14:42:42 -08:00
macvtap.c drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
Makefile
mdio.c mdio: unused ethtool functions 2013-12-26 13:29:35 -05:00
mii.c
netconsole.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-11-04 13:48:30 -05:00
nlmon.c net: Explicitly initialize u64_stats_sync structures for lockdep 2013-11-06 12:40:25 +01:00
ntb_netdev.c
rionet.c
sb1000.c
Space.c drivers: net: Include new header file in sbni.c 2013-12-19 18:51:20 -05:00
sungem_phy.c
tun.c tuntap: Fix for a race in accessing numqueues 2014-01-22 21:32:56 -08:00
veth.c Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-11-14 16:30:30 +09:00
virtio_net.c virtio-net: initial rx sysfs support, export mergeable rx buffer size 2014-01-16 23:46:07 -08:00
vxlan.c net/vxlan: Share RX skb de-marking and checksum checks with ovs 2014-01-23 13:30:03 -08:00
xen-netfront.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-01-25 11:17:34 -08:00