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Sebastian Ott 0f5d050cea s390/cio: allow to reset channel measurement block 
Prior to commit 1bc6664bdfb949bc69a08113801e7d6acbf6bc3f a call to
enable_cmf for a device for which channel measurement was already
enabled resulted in a reset of the measurement data.

What looked like bugs at the time (a 2nd allocation was triggered
but failed, reset was called regardless of previous failures, and
errors have not been reported to userspace) was actually something
at least one userspace tool depended on. Restore that behavior in
a sane way.

Fixes: 1bc6664bdfb ("s390/cio: use device_lock during cmb activation")
Cc: stable@vger.kernel.org #v4.4+
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2016-07-14 13:01:49 +02:00
..
accessibility
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acpi
Merge branch 'acpi-ec'
2016-06-09 23:48:54 +02:00
amba
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android
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ata
remove lots of IS_ERR_VALUE abuses
2016-05-27 15:26:11 -07:00
atm
atm: iphase: off by one in rx_pkt()
2016-05-31 11:52:59 -07:00
auxdisplay
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base
topology/sysfs: provide drawer id and siblings attributes
2016-06-13 15:58:27 +02:00
bcma
MTD updates for v4.7:
2016-05-24 11:00:20 -07:00
block
Merge branch 'stable/for-jens-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus
2016-06-09 09:49:55 -06:00
bluetooth
Bluetooth: Add USB ID 13D3:3487 to ath3k
2016-05-13 16:54:59 +02:00
bus
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2016-05-19 10:02:26 -07:00
cdrom
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char
Merge branch 'akpm' (patches from Andrew)
2016-05-20 22:31:33 -07:00
clk
clk: nxp: Select MFD_SYSCON for creg driver
2016-06-01 15:14:06 -07:00
clocksource
Small release overall.
2016-05-19 11:27:09 -07:00
connector
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cpufreq
Merge branches 'pm-cpufreq-fixes' and 'pm-cpuidle'
2016-06-09 23:49:16 +02:00
cpuidle
cpuidle: Fix cpuidle_state_is_coupled() argument in cpuidle_enter()
2016-05-18 02:48:37 +02:00
crypto
s390/crc32-vx: add crypto API module for optimized CRC-32 algorithms
2016-06-15 16:36:34 +02:00
dax
/dev/dax, core: file operations and dax-mmap
2016-05-20 22:02:55 -07:00
dca
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devfreq
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dio
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dma
remove lots of IS_ERR_VALUE abuses
2016-05-27 15:26:11 -07:00
dma-buf
dma-buf: use vma_pages()
2016-05-31 22:17:05 +05:30
edac
EDAC, sb_edac: Readd accidentally dropped Broadwell-D support
2016-06-03 17:28:21 +02:00
eisa
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extcon
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firewire
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firmware
efi/arm: Fix the format of EFI debug messages
2016-06-03 09:57:36 +02:00
fmc
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fpga
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gpio
gpio: bcm-kona: fix bcm_kona_gpio_reset() warnings
2016-06-08 14:04:35 +02:00
gpu
Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-06-10 10:37:01 -07:00
hid
Merge branch 'for-4.7/wacom' into for-linus
2016-05-17 12:42:27 +02:00
hsi
HSI: omap-ssi: move omap_ssi_port_update_fclk
2016-05-09 22:45:18 +02:00
hv
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hwmon
hwmon: (lm90) use proper type for update_interval
2016-06-07 20:13:05 -07:00
hwspinlock
drivers/hwspinlock: use correct radix tree API
2016-05-20 17:58:30 -07:00
hwtracing
Char / Misc driver update for 4.7-rc1
2016-05-20 21:20:31 -07:00
i2c
i2c: mux: reg: Provide of_match_table
2016-06-09 22:38:16 +02:00
ide
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idle
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iio
Staging and IIO driver update for 4.7-rc1
2016-05-20 22:20:48 -07:00
infiniband
IB/IPoIB: Don't update neigh validity for unresolved entries
2016-06-07 10:49:48 -04:00
input
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2016-05-27 19:14:35 -07:00
iommu
remove lots of IS_ERR_VALUE abuses
2016-05-27 15:26:11 -07:00
ipack
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irqchip
irqchip/irq-pic32-evic: Fix bug with external interrupts.
2016-06-02 18:03:50 +01:00
isdn
TTY and Serial driver update for 4.7-rc1
2016-05-20 20:57:27 -07:00
leds
pwm: Changes for v4.7-rc1
2016-05-25 10:40:15 -07:00
lguest
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lightnvm
lightnvm: reserved space calculation incorrect
2016-05-06 12:51:10 -06:00
macintosh
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mailbox
mailbox: Fix devm_ioremap_resource error detection code
2016-05-08 22:44:46 +05:30
mcb
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md
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
2016-05-27 14:28:09 -07:00
media
uvc_v4l2: Simplify compat ioctl implementation
2016-06-10 15:11:15 -07:00
memory
MTD updates for v4.7:
2016-05-24 11:00:20 -07:00
memstick
drivers/memstick/core/mspro_block: use kmemdup
2016-05-23 17:04:14 -07:00
message
SCSI misc on 20160517
2016-05-18 16:38:59 -07:00
mfd
remove lots of IS_ERR_VALUE abuses
2016-05-27 15:26:11 -07:00
misc
Char / Misc driver update for 4.7-rc1
2016-05-20 21:20:31 -07:00
mmc
mmc: sunxi: Re-enable eMMC HS-DDR modes on Allwinner A80
2016-06-02 10:40:20 +02:00
mtd
This pull request contains mostly cleanups and minor
2016-05-27 18:49:29 -07:00
net
vmxnet3: segCnt can be 1 for LRO packets
2016-06-10 00:15:11 -07:00
nfc
NFC: pn533: handle interrupted commands in pn533_recv_frame
2016-05-10 00:01:47 +02:00
ntb
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nubus
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nvdimm
DAX error handling for 4.7
2016-05-26 19:34:26 -07:00
nvme
NVMe: Only release requested regions
2016-06-09 14:28:28 -06:00
nvmem
remove lots of IS_ERR_VALUE abuses
2016-05-27 15:26:11 -07:00
of
drivers/of: Fix depth for sub-tree blob in unflatten_dt_nodes()
2016-06-09 14:36:34 -05:00
oprofile
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parisc
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parport
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pci
Char / Misc driver update for 4.7-rc1
2016-05-20 21:20:31 -07:00
pcmcia
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perf
drivers/perf: arm_pmu: Avoid leaking pmu->irq_affinity on error
2016-06-03 10:16:21 +01:00
phy
USB patches for 4.7-rc1
2016-05-20 21:12:25 -07:00
pinctrl
pinctrl: mediatek: fix dual-edge code defect
2016-05-31 10:13:45 +02:00
platform
platform/chrome: Driver and binding changes for 4.7
2016-05-28 12:32:01 -07:00
pnp
driver core update for 4.7-rc1
2016-05-20 21:26:15 -07:00
power
power supply and reset changes for the v4.7 series
2016-05-20 14:06:21 -07:00
powercap
Power management material for v4.7-rc1
2016-05-16 19:17:22 -07:00
pps
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ps3
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ptp
ptp: oops in ptp_ioctl()
2016-05-29 22:32:27 -07:00
pwm
pwm: Changes for v4.7-rc1
2016-05-25 10:40:15 -07:00
rapidio
rapidio/mport_cdev: fix uapi type definitions
2016-05-05 17:38:53 -07:00
ras
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regulator
regulator: pwm: Use pwm_get_args() where appropriate
2016-05-17 14:45:02 +02:00
remoteproc
remoteproc: Add additional crash reasons
2016-05-12 15:50:19 -07:00
reset
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rpmsg
rpmsg: add THIS_MODULE to rpmsg_driver in rpmsg core
2016-05-06 11:08:58 -07:00
rtc
rtc: tps6586x: rename so module can be autoloaded
2016-05-21 17:07:17 +02:00
s390
s390/cio: allow to reset channel measurement block
2016-07-14 13:01:49 +02:00
sbus
openprom: fix warning
2016-05-20 18:33:37 -07:00
scsi
Merge remote-tracking branch 'mkp-scsi/4.7/scsi-fixes' into fixes
2016-06-04 09:53:29 -04:00
sfi
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sh
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sn
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soc
soc: mtk-pmic-wrap: avoid integer overflow warning
2016-05-19 15:20:24 +02:00
spi
sound updates #2 for 4.7-rc1
2016-05-28 12:23:12 -07:00
spmi
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ssb
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staging
Round two of 4.7 merge window patches
2016-05-28 11:04:16 -07:00
target
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2016-05-28 12:04:17 -07:00
tc
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thermal
Merge branch 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
2016-06-12 06:30:39 -07:00
thunderbolt
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tty
devpts: Make each mount of devpts an independent filesystem.
2016-06-05 10:36:01 -07:00
uio
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usb
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2016-05-28 12:04:17 -07:00
uwb
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vfio
vfio/pci: Allow VPD short read
2016-05-31 21:25:52 -06:00
vhost
target: make close_session optional
2016-05-10 01:19:26 -07:00
video
OMAPDSS: HDMI5: Change DDC timings
2016-05-31 08:20:43 +03:00
virt
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virtio
virtio_balloon: fix PFN format for virtio-1
2016-05-22 19:44:13 +03:00
vlynq
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vme
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w1
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watchdog
Merge git://www.linux-watchdog.org/linux-watchdog
2016-05-25 10:19:17 -07:00
xen
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2016-05-28 12:04:17 -07:00
zorro
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Kconfig
libnvdimm for 4.7
2016-05-23 11:18:01 -07:00
Makefile
/dev/dax, pmem: direct access to persistent memory
2016-05-20 22:02:53 -07:00