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08b5e1c91c
linux/drivers
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Anton Vorontsov 08b5e1c91c ucc_geth: Fix netdev watchdog triggering on link changes 
Since commit 864fdf884e ("ucc_geth:
Fix hangs after switching from full to half duplex") ucc_geth driver
disables the controller during MAC configuration changes. Though,
disabling the controller might take quite awhile, and so the netdev
watchdog might get upset:

 NETDEV WATCHDOG: eth2 (ucc_geth): transmit queue 0 timed out
 ------------[ cut here ]------------
 Badness at c02729a8 [verbose debug info unavailable]
 NIP: c02729a8 LR: c02729a8 CTR: c01b6088
 REGS: c0451c40 TRAP: 0700   Not tainted  (2.6.32-trunk-8360e)
 [...]
 NIP [c02729a8] dev_watchdog+0x280/0x290
 LR [c02729a8] dev_watchdog+0x280/0x290
 Call Trace:
 [c0451cf0] [c02729a8] dev_watchdog+0x280/0x290 (unreliable)
 [c0451d50] [c00377c4] run_timer_softirq+0x164/0x224
 [c0451da0] [c0032a38] __do_softirq+0xb8/0x13c
 [c0451df0] [c00065cc] do_softirq+0xa0/0xac
 [c0451e00] [c003280c] irq_exit+0x7c/0x9c
 [c0451e10] [c00640c4] __ipipe_sync_stage+0x248/0x24c
 [...]

This patch fixes the issue by detaching the netdev during the
time we change the configuration.

Reported-by: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Tested-by: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
Cc: Stable <stable@vger.kernel.org> [2.6.32]
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-26 20:24:43 -08:00
..
accessibility
acpi Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq 2009-12-11 15:59:23 -08:00
amba
ata Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
atm drivers/atm: Correct code taking the size of a pointer 2009-12-13 19:56:33 -08:00
auxdisplay
base Driver core: fix race in dev_driver_string 2009-12-11 11:24:55 -08:00
block Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-12-11 12:18:16 -08:00
bluetooth Bluetooth: Prevent ill-timed autosuspend in USB driver 2009-12-17 12:12:49 -08:00
cdrom Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 2009-12-09 19:03:16 -08:00
char Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6 2009-12-11 15:34:40 -08:00
clocksource
connector
cpufreq
cpuidle
crypto Merge branch 'for-next' into for-linus 2009-12-07 18:36:35 +01:00
dca
dio m68k: don't export static inline functions 2009-12-06 11:18:28 +01:00
dma Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
edac amd64_edac: bump driver version 2009-12-08 13:38:14 +01:00
eisa
firewire Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2009-12-11 15:22:27 -08:00
firmware firmware_class: make request_firmware_nowait more useful 2009-12-11 11:24:52 -08:00
gpio gpio: Langwell GPIO driver bugfixes 2009-12-01 16:32:19 -08:00
gpu Merge branch 'drm-nouveau-pony' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2009-12-11 14:32:49 -08:00
hid USB: remove the auto_pm flag 2009-12-11 11:55:21 -08:00
hwmon Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging 2009-12-09 19:53:11 -08:00
i2c Merge branch 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2009-12-09 19:57:06 -08:00
ide Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-next-2.6 2009-12-09 19:45:38 -08:00
idle
ieee1394 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
ieee802154 ieee802154: merge cleanup 2009-12-02 01:13:11 -08:00
infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
input Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-12-11 12:18:16 -08:00
isdn mISDN: use DECLARE_COMPLETION_ONSTACK for non-constant completion 2009-12-18 20:30:11 -08:00
leds Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2009-12-08 08:15:29 -08:00
lguest
macintosh Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
mca
md Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
media V4L/DVB (13592): max2165: 32bit build patch 2009-12-10 12:45:18 -02:00
memstick
message Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
mfd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2009-12-09 19:52:01 -08:00
misc Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2009-12-11 15:24:56 -08:00
mmc tty: sdio_uart: Fix the locking on "func" for new code 2009-12-11 15:18:06 -08:00
mtd Merge git://git.infradead.org/ubifs-2.6 2009-12-10 09:31:45 -08:00
net ucc_geth: Fix netdev watchdog triggering on link changes 2009-12-26 20:24:43 -08:00
nubus
of
oprofile
parisc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
parport Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k 2009-12-08 08:13:35 -08:00
pci Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-12-11 12:18:16 -08:00
pcmcia Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-12-11 12:18:16 -08:00
platform Merge branch 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2009-12-09 19:57:06 -08:00
pnp Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-12-11 12:18:16 -08:00
power collie: add battery driver 2009-11-27 21:07:23 +01:00
pps
ps3 tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
rapidio
regulator regulator: Initialise wm831x structure pointor for ISINK driver 2009-12-02 19:37:16 +00:00
rtc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
sbus tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
scsi Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
serial Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6 2009-12-11 15:34:40 -08:00
sfi
sh sh: pfc: pr_info() -> pr_debug() cleanups. 2009-11-30 12:15:04 +09:00
sn
spi Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
ssb Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ 2009-12-05 15:22:26 -08:00
staging Staging: batman: fix debug Kconfig option 2009-12-11 15:49:27 -08:00
tc
telephony Merge branch 'for-next' into for-linus 2009-12-07 18:36:35 +01:00
thermal
uio
usb Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6 2009-12-11 15:34:40 -08:00
uwb tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
video Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-12-11 12:18:16 -08:00
virtio
vlynq
w1
watchdog Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
xen Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-12-11 12:18:16 -08:00
zorro m68k: don't export static inline functions 2009-12-06 11:18:28 +01:00
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