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Konrad Rzeszutek Wilk bdc5c1812c xen/pciback: Don't disable a PCI device that is already disabled. 
While shuting down a HVM guest with pci devices passed through we
get this:

pciback 0000:04:00.0: restoring config space at offset 0x4 (was 0x100000, writing 0x100002)
------------[ cut here ]------------
WARNING: at drivers/pci/pci.c:1397 pci_disable_device+0x88/0xa0()
Hardware name: MS-7640
Device pciback
disabling already-disabled device
Modules linked in:
Pid: 53, comm: xenwatch Not tainted 3.9.0-rc1-20130304a+ #1
Call Trace:
 [<ffffffff8106994a>] warn_slowpath_common+0x7a/0xc0
 [<ffffffff81069a31>] warn_slowpath_fmt+0x41/0x50
 [<ffffffff813cf288>] pci_disable_device+0x88/0xa0
 [<ffffffff814554a7>] xen_pcibk_reset_device+0x37/0xd0
 [<ffffffff81454b6f>] ? pcistub_put_pci_dev+0x6f/0x120
 [<ffffffff81454b8d>] pcistub_put_pci_dev+0x8d/0x120
 [<ffffffff814582a9>] __xen_pcibk_release_devices+0x59/0xa0

This fixes the bug.

CC: stable@vger.kernel.org
Reported-and-Tested-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
 		2013-03-06 10:00:25 -05:00
..
accessibility
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acpi acpi, memory-hotplug: parse SRAT before memblock is ready 2013-02-23 17:50:14 -08:00
amba amba: Convert to devm_ioremap_resource() 2013-01-25 12:21:46 -08:00
ata Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-02-23 17:09:55 -08:00
atm atm/iphase: rename fregt_t -> ffreg_t 2013-02-08 14:22:05 -05:00
auxdisplay
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base pm / runtime: force memory allocation with no I/O during Runtime PM callbcack 2013-02-23 17:50:16 -08:00
bcma Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2013-02-14 14:23:33 -05:00
block Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
bluetooth Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-02-21 17:40:58 -08:00
bus
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cdrom
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char Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-02-22 19:25:09 -08:00
clk arm-soc: device tree conversions 2013-02-21 15:38:49 -08:00
clocksource arm-soc: virtualization changes 2013-02-21 15:40:16 -08:00
connector net: proc: change proc_net_remove to remove_proc_entry 2013-02-18 14:53:08 -05:00
cpufreq arm-soc: driver specific changes 2013-02-21 15:12:18 -08:00
cpuidle arm-soc: soc-specific updates 2013-02-21 15:27:22 -08:00
crypto
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dca
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devfreq Merge branch 'master' into for-next 2013-01-29 10:48:30 +01:00
dio
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dma Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-02-23 17:09:55 -08:00
edac Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
eisa
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extcon Char/Misc driver patches for 3.9-rc1 2013-02-21 13:57:13 -08:00
firewire Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-02-21 17:40:58 -08:00
firmware memory-hotplug: remove /sys/firmware/memmap/X sysfs 2013-02-23 17:50:12 -08:00
gpio Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2013-02-21 17:54:03 -08:00
gpu Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-02-21 17:40:58 -08:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2013-02-21 17:41:38 -08:00
hsi
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hv Char/Misc driver patches for 3.9-rc1 2013-02-21 13:57:13 -08:00
hwmon ACPI and power management updates for 3.9-rc1 2013-02-20 11:26:56 -08:00
hwspinlock
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i2c arm-soc: soc-specific updates 2013-02-21 15:27:22 -08:00
ide Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-02-21 17:40:58 -08:00
idle Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-02-22 19:25:09 -08:00
iio Staging tree update for 3.9-rc1 2013-02-21 12:11:44 -08:00
infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-02-21 17:40:58 -08:00
input arm-soc: soc-specific updates 2013-02-21 15:27:22 -08:00
iommu Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
ipack Char/Misc driver patches for 3.9-rc1 2013-02-21 13:57:13 -08:00
irqchip arm-soc: cleanups 2013-02-21 14:58:40 -08:00
isdn Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-02-21 17:40:58 -08:00
leds
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lguest tty/serial patches for 3.9-rc1 2013-02-21 13:41:04 -08:00
macintosh Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-02-23 17:09:55 -08:00
mailbox ARM / highbank: add support for pl320 IPC 2013-02-02 00:01:15 +01:00
md drivers/md/persistent-data/dm-transaction-manager.c: rename HASH_SIZE 2013-02-23 17:50:08 -08:00
media Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2013-02-21 17:54:03 -08:00
memory memory: Convert to devm_ioremap_resource() 2013-01-22 11:41:56 -08:00
memstick
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message
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mfd arm-soc: driver specific changes 2013-02-21 15:12:18 -08:00
misc Char/Misc driver patches for 3.9-rc1 2013-02-21 13:57:13 -08:00
mmc Char/Misc driver patches for 3.9-rc1 2013-02-21 13:57:13 -08:00
mtd arm-soc: device tree conversions 2013-02-21 15:38:49 -08:00
net Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-02-23 17:09:55 -08:00
nfc Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2013-02-18 13:47:13 -05:00
ntb
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nubus
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of Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-02-21 17:40:58 -08:00
oprofile
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parisc parisc: led driver requires CONFIG_VM_EVENT_COUNTERS 2013-02-20 22:51:52 +01:00
parport Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2013-02-21 17:54:03 -08:00
pci Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2013-02-21 17:54:03 -08:00
pcmcia Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-02-21 17:40:58 -08:00
pinctrl arm-soc: device tree conversions 2013-02-21 15:38:49 -08:00
platform Staging tree update for 3.9-rc1 2013-02-21 12:11:44 -08:00
pnp PNPACPI: Fix acpi_bus_get_device() check in drivers/pnp/pnpacpi/core.c 2013-01-31 21:11:08 +01:00
power Staging tree update for 3.9-rc1 2013-02-21 12:11:44 -08:00
pps pps: Move timestamp read into PPS code proper 2013-02-13 10:13:58 -08:00
ps3
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ptp
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pwm pwm: Convert to devm_ioremap_resource() 2013-01-22 11:41:57 -08:00
rapidio
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regulator Merge remote-tracking branch 'regulator/topic/tps65090' into regulator-next 2013-02-19 12:43:12 +00:00
remoteproc arm-soc: multiplatform support 2013-02-21 15:20:41 -08:00
rpmsg Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-02-21 17:40:58 -08:00
rtc Merge branch 'akpm' (incoming from Andrew) 2013-02-21 17:38:49 -08:00
s390 Merge tag 'kvm-3.9-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2013-02-24 13:07:18 -08:00
sbus
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scsi Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-02-21 17:40:58 -08:00
sfi
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sh Merge branch 'pfc' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/sh-pinmux 2013-01-29 08:56:25 -08:00
sn
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spi arm-soc: soc-specific updates 2013-02-21 15:27:22 -08:00
ssb Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2013-02-14 14:23:33 -05:00
staging mm: rename page struct field helpers 2013-02-23 17:50:18 -08:00
target Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-02-21 17:40:58 -08:00
tc
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thermal thermal: Convert to devm_ioremap_resource() 2013-01-25 12:21:47 -08:00
tty Features: 2013-02-24 16:18:31 -08:00
uio uio: remove !S390 dependency from Kconfig 2013-02-14 15:55:18 +01:00
usb Merge branch 'akpm' (more incoming from Andrew) 2013-02-23 17:50:35 -08:00
uwb driver-core: constify data for class_find_device() 2013-02-06 12:18:56 -08:00
vfio
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vhost Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
video Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-02-23 17:09:55 -08:00
virt
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virtio
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vlynq
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vme vme: add missing put_device() after device_register() fails 2013-02-14 09:24:14 -08:00
w1 Char/Misc driver patches for 3.9-rc1 2013-02-21 13:57:13 -08:00
watchdog watchdog: Convert to devm_ioremap_resource() 2013-01-25 12:21:48 -08:00
xen xen/pciback: Don't disable a PCI device that is already disabled. 2013-03-06 10:00:25 -05:00
zorro
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Kconfig Char/Misc driver patches for 3.9-rc1 2013-02-21 13:57:13 -08:00
Makefile Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-02-23 17:09:55 -08:00