The address of the gmap notifier was broken, resulting in
unhandled validity intercepts in KVM. Fix the rmap->vmaddr
to be on a segment boundary.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
When a path is gone and dasd_generic_path_event is called with a
PE_PATH_GONE event, we must assume that any I/O request on that
subchannel is still running. This is unlike the dasd_generic_notify
handler and the CIO_NO_PATH event, which implies that the subchannel
has been cleared.
If dasd_generic_path_event finds that the path has been the last
usable path, it must not call dasd_generic_last_path_gone (which would
reset the state of running requests), but just set the
DASD_STOPPED_DC_WAIT bit.
Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
pte_present might return true on PAGE_TYPE_NONE, even if
the invalid bit is on. Modify the existing check of the
pgste functions to avoid crashes.
[ Martin Schwidefsky: added ptep_modify_prot_[start|commit] bits ]
Reported-by: Martin Schwidefky <schwidefsky@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
CC: stable@vger.kernel.org
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
'buf[2]' is 2 bytes length, and sprintf() will append '\0' at the end
of string "?\n", so original implementation is memory overflow.
Need use strncpy() and strnlen() instead of sprintf().
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
IPIs might be lost when a cpu gets brought offline:
When stop_machine executes its state machine there is a race window
for the state STOPMACHINE_DISABLE_IRQ where the to be brought offline
cpu might already have irqs disabled but a different cpu still may
have irqs enabled.
If the enabled cpu receives an interrupt and as a result sends an IPI
to the to be offlined cpu in its bottom halve context, the IPI won't
be noticed before the cpu is offline.
In fact the race window is much larger since there is no guarantee
when an IPI will be received.
To fix this check for enqueued but not yet received IPIs in the
cpu_disable() path and call the respective handlers before the cpu
is marked offline.
Reported-by: Juergen Doelle <juergen.doelle@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
On s390 the prefix page and absolute zero pages are not correctly
returned when reading /dev/mem. The reason is that the s390 asm/io.h
file includes the asm-generic/io.h file which then defines
xlate_dev_mem_ptr() and therefore overwrites the s390 specific
version that does the correct swap operation for prefix and absolute
zero pages. The problem is a regression that was introduced with git
commit cd248341 (s390/pci: base support).
To fix the problem add "#ifndef xlate_dev_mem_ptr" in asm-generic/io.h
and "#define xlate_dev_mem_ptr" in asm/io.h. This ensures that the
s390 version is used. For completeness also add the "#ifndef"
construct for xlate_dev_kmem_ptr().
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
In dma_free_coherent call debug_dma_free_coherent before deallocating
the memory to avoid a possible use after free.
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Pull LED subsystem fix from Bryan Wu.
* 'leds-fixes-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
leds: leds-gpio: reserve gpio before using it
Pull i2c bugfixes from Wolfram Sang:
"These should have been in rc2 but I missed it due to working on devm
longer than expected.
There is one ID addition, since we are touching the driver anyhow.
And the feature bit documentation is one outcome of a debug session
and will make it easier for users to work around problems. The rest
is typical driver bugfixes."
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: suppress lockdep warning on delete_device
i2c: mv64xxx: work around signals causing I2C transactions to be aborted
i2c: i801: Document feature bits in modinfo
i2c: designware: add Intel BayTrail ACPI ID
i2c: designware: always clear interrupts before enabling them
i2c: designware: fix RX FIFO overrun
Pull s390 update from Martin Schwidefsky:
"An additional sysfs attribute for channel paths and a couple of bux
fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/pgtable: fix ipte notify bit
s390/xpram: mark xpram as non-rotational
s390/smp: fix cpu re-scan vs. cpu state
s390/cio: add channel ID sysfs attribute
s390/ftrace: fix mcount adjustment
s390: fix gmap_ipte_notifier vs. software dirty pages
s390: disable pfmf for clear page instruction
s390/disassembler: prevent endless loop in print_fn_code()
s390: remove non existent reference to GENERIC_KERNEL_THREAD
Before f7b861b7a6d9 ("arm: Use generic idle loop") ARM would kill the
CPU within the rcu idle section. Now that the rcu_idle_enter()/exit()
pair have been pushed lower down in the idle loop this is no longer true
and so using RCU_NONIDLE here is no longer necessary and also harmful
because RCU is not actually idle at this point.
Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull radeon sun/hainan support from Dave Airlie:
"Since I know its outside the merge window, but since this is new hw I
thought I'd try and provoke the new hw exception, it just fills in the
blanks in the driver for the new AMD sun and hainan chipsets."
* 'drm-radeon-sun-hainan' of git://people.freedesktop.org/~airlied/linux:
drm/radeon: add Hainan pci ids
drm/radeon: add golden register settings for Hainan (v2)
drm/radeon: sun/hainan chips do not have UVD (v2)
drm/radeon: track which asics have UVD
drm/radeon: radeon-asic updates for Hainan
drm/radeon: fill in ucode loading support for Hainan
drm/radeon: don't touch DCE or VGA regs on Hainan (v3)
drm/radeon: fill in GPU init for Hainan (v2)
drm/radeon: add chip family for Hainan
Pull DRM fixes from Dave Airlie:
"This is just a set of nouveau and radeon fixes, the nouveau ones fix
some suspend/resume regressions since use of copy engines and some
fixes for Z compression on some newer chipsets."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/radeon/dce2: use 10khz units for audio dto calculation
drm/radeon: Fix VRAM size calculation for VRAM >= 4GB
drm/radeon: Remove superfluous variable
drm/nouveau: ensure channels are stopped before saving fences for suspend
drm/nv50/fifo: prevent races between clients updating playlists
drm/nvc0/fifo: prevent CHAN_TABLE_ERROR:CHANNEL_PENDING on fifo fini
drm/nvc0/fifo: prevent races between clients updating playlists
drm/nve0/fifo: prevent races between clients updating playlists
drm/nve0/ltcg: poke the partition count into yet another register
drm/nvc0/ltcg: fix handling of disabled partitions
drm/nvc0/ce: disable ce1 on a number of chipsets
drm/nouveau/bios: fix thinko in ZM_MASK_ADD opcode
drm/nouveau: fix build with nv50->nvc0
This is the pull request for AMD Sun/Hainan support. I've
split it out separately from my regular fixes stream. Hainan
is a new SI asic with no UVD or DCE hardware. The patches are
minimally invasive; basically just pci ids and skipping UVD and
DCE init for this family. Most of the changes to si.c are just
the golden register tables for the family.
* 'drm-fixes-3.10-sun' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: add Hainan pci ids
drm/radeon: add golden register settings for Hainan (v2)
drm/radeon: sun/hainan chips do not have UVD (v2)
drm/radeon: track which asics have UVD
drm/radeon: radeon-asic updates for Hainan
drm/radeon: fill in ucode loading support for Hainan
drm/radeon: don't touch DCE or VGA regs on Hainan (v3)
drm/radeon: fill in GPU init for Hainan (v2)
drm/radeon: add chip family for Hainan
Minor bug fixes.
* 'drm-fixes-3.10' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon/dce2: use 10khz units for audio dto calculation
drm/radeon: Fix VRAM size calculation for VRAM >= 4GB
drm/radeon: Remove superfluous variable
* Regression fix in xen privcmd fixing a memory leak.
* Add Documentation for tmem driver.
* Simplify and remove code in the tmem driver.
* Cleanups.
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Merge tag 'stable/for-linus-3.10-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
Pull Xen fixes from Konrad Rzeszutek Wilk:
- Regression fix in xen privcmd fixing a memory leak.
- Add Documentation for tmem driver.
- Simplify and remove code in the tmem driver.
- Cleanups.
* tag 'stable/for-linus-3.10-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen: Fixed assignment error in if statement
xen/xenbus: Fixed over 80 character limit issue
xen/xenbus: Fixed indentation error in switch case
xen/tmem: Don't use self[ballooning|shrinking] if frontswap is off.
xen/tmem: Remove the usage of '[no|]selfballoon' and use 'tmem.selfballooning' bool instead.
xen/tmem: Remove the usage of 'noselfshrink' and use 'tmem.selfshrink' bool instead.
xen/tmem: Remove the boot options and fold them in the tmem.X parameters.
xen/tmem: s/disable_// and change the logic.
xen/tmem: Fix compile warning.
xen/tmem: Split out the different module/boot options.
xen/tmem: Move all of the boot and module parameters to the top of the file.
xen/tmem: Cleanup. Remove the parts that say temporary.
xen/privcmd: fix condition in privcmd_close()
Drop erroneously created attributes from nct6775 driver.
Drop redundant safety on cache lifetime for tmp401 driver.
Add explicit maintainer for LM95234 and TMP401 drivers.
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- Error path fixes for abituguru and iio_hwmon drivers.
- Drop erroneously created attributes from nct6775 driver.
- Drop redundant safety on cache lifetime for tmp401 driver.
- Add explicit maintainer for LM95234 and TMP401 drivers.
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
MAINTAINERS: Add myself as maintainer for LM95234 and TMP401 drivers
hwmon: (tmp401) Drop redundant safety on cache lifetime
hwmon: fix error return code in abituguru_probe()
hwmon: (iio_hwmon) Fix null pointer dereference
hwmon: (nct6775) Do not create non-existing attributes
hwmon: (iio_hwmon) Fix missing iio_channel_release_all call if devm_kzalloc fail
In commit 78d77df71510 ("x86-64, init: Do not set NX bits on non-NX
capable hardware") we added the early_pmd_flags that gets the NX bit set
when a CPU supports NX. However, the new variable was marked __initdata,
because the main _use_ of this is in an __init routine.
However, the bit setting happens from secondary_startup_64(), which is
called not only at bootup, but on every secondary CPU start. Including
resuming from STR and at CPU hotplug time. So the value cannot be
__initdata.
Reported-bisected-and-tested-by: Michal Hocko <mhocko@suse.cz>
Cc: stable@vger.kernel.org # v3.9
Acked-by: Peter Anvin <hpa@linux.intel.com>
Cc: Fernando Luis Vázquez Cao <fernando@oss.ntt.co.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fixed assignment error in if statement in balloon.c
Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Fixed the format length of the xenbus_backend_ioctl()
function to meet the 80 character limit in
xenbus_dev_backend.c
Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Fixed the indentation error in the switch case in
xenbus_dev_backend.c
Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Hainan has no display hardware:
- no DCE (crtc, uniphy, dac, etc.)
- no VGA
v2: fix bios fetch
v3: fix interrupts
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
- Three fixes to make the boot path for device tree work
properly on the Nomadik pin controller.
- Compile warning fix for the vt8500 driver.
- Fix error path in pinctrl-single.
- Free mappings in error path of the Lantiq controller.
- Documentation fixes.
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Merge tag 'pinctrl-fixes-v3.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pinctrl fixes from Linus Walleij:
- Three fixes to make the boot path for device tree work properly on
the Nomadik pin controller.
- Compile warning fix for the vt8500 driver.
- Fix error path in pinctrl-single.
- Free mappings in error path of the Lantiq controller.
- Documentation fixes.
* tag 'pinctrl-fixes-v3.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl/lantiq: Free mapping configs for both pin and groups
pinctrl: single: fix error return code in pcs_parse_one_pinctrl_entry()
pinctrl: generic: Fix typos and clarify comments
pinctrl: vt8500: Fix incorrect data in WM8750 pinctrl table
pinctrl: abx500: Rejiggle platform data and DT initialisation
pinctrl: abx500: Specify failed sub-driver by ID instead of driver_data
Pull kbuild fix from Michal Marek:
"In an attempt to improve make rpm-pkg, I broke make binrpm-pkg"
* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
package: Makefile: unbreak binrpm-pkg target
Avoids overflows on DCE2.x devices. Also clarify the calculation
on other asics.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
bool in_mode_set from struct radeon_crtc is not used anymore.
Signed-off-by: Niels Ole Salscheider <niels_ole@salscheider-online.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
I wrote the LM95234 driver and extended the TMP401 driver substantially,
and I have hardware to test both, so it makes sense to explicitly
maintain them.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
Fixes some s/r problem with copy engines and ZCULL issues and playlist issues
* 'drm-nouveau-fixes-3.10' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nouveau: ensure channels are stopped before saving fences for suspend
drm/nv50/fifo: prevent races between clients updating playlists
drm/nvc0/fifo: prevent CHAN_TABLE_ERROR:CHANNEL_PENDING on fifo fini
drm/nvc0/fifo: prevent races between clients updating playlists
drm/nve0/fifo: prevent races between clients updating playlists
drm/nve0/ltcg: poke the partition count into yet another register
drm/nvc0/ltcg: fix handling of disabled partitions
drm/nvc0/ce: disable ce1 on a number of chipsets
drm/nouveau/bios: fix thinko in ZM_MASK_ADD opcode
drm/nouveau: fix build with nv50->nvc0
The falcon is present, but the rest of the copy engine doesn't appear to
be... PUNITS doesn't report disabled (maybe the bits for the copy engines
got added later?), so we end up trying to use a non-functional CE1, and
bust all sorts of things.. Most notably, suspend/resume..
Cc: stable@vger.kernel.org
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
