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2012-10-19iio: Add a logarithmic fractional value typeLars-Peter Clausen
For ADCs or DACs the denominator for fractional types often is a power of two. In this case we can use a shift operation instead of the rather expensive 64 bit division. This patch adds a new fractional type which expects the denominator to be specified as the log2 of the actual denominator. E.g. for ADCs and DACs this will usually be the number of significant bits. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-10-19iio: Use strict_strtouint instead of kstrtoulLars-Peter Clausen
strict_strto* has been deprecated in favor of kstrto*. Use strict_strtouint respective strict_strtoint, since that is what the functions we pass the converted values to expect. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-10-19iio: at91_adc: Use devm_kcalloc to allocate arraysLars-Peter Clausen
Use dev_kcalloc instead of devm_kzalloc to allocate arrays since it is semantically more appropriate. While we are at it the patch also fixes the following coccinelle warning: drivers/iio/adc/at91_adc.c:277:25-31: ERROR: application of sizeof to pointer Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-By: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-10-19iio: Don't compare boolean values to true/falseLars-Peter Clausen
Fixes the following warnings from coccicheck: drivers/iio/inkern.c:81:6-14: WARNING: Comparison to bool drivers/iio/dac/ad5686.c:191:5-11: WARNING: Comparison to bool Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-10-19staging:iio:lpc32xx_adc: Use resource_size instead of opencoding itLars-Peter Clausen
Fixes the following error from coccicheck: drivers/staging/iio/adc/lpc32xx_adc.c:153:43-46: ERROR: Missing resource_size with res Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Roland Stigge <stigge@antcom.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-10-19staging:iio: Don't compare boolean values with true/falseLars-Peter Clausen
Fixes the following coccicheck warnings: drivers/staging/iio/accel/lis3l02dq_ring.c:240:5-10: WARNING: Comparison to bool drivers/staging/iio/iio_dummy_evgen.c:111:6-25: WARNING: Comparison to bool Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-10-19staging iio: consistent commas in adis16400 channel specPeter Meerwald
probably not the most important patch in the world Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Cc: manuel.stahl@iis.fraunhofer.de Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-10-19staging/iio/lis3l02dq: fix building without irq_to_gpioArnd Bergmann
The driver has not been building for some time after the irq_to_gpio function has been removed from the kernel. The only board in the upstream kernel that provides this device is the "Stargate 2", which is also maintained by Jonathan Cameron. Rather than working around the problem by adding new platform data for this driver, this patch uses the of_gpio framework to get to the gpio number. However, the stargate2 code does not (yet) use DT based probing, so it is still broken, but at least building allyesconfig works again. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Jonathan Cameron <jic23@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-10-19staging:iio: Remove unused DRIVER_NAME definesLars-Peter Clausen
Some drivers define a DRIVER_NAME, but never use the define. This patch removes defines. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-10-19staging iio: use iio_trigger_generic_data_rdy_poll() in ↵Peter Meerwald
accel/adis16209,adis16240 driver Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-10-19iio: fix spelling of Accelerometer in KconfigPeter Meerwald
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Acked-by: Srinivas pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-10-19iio: use iio_push_to_buffer() in at91 driverPeter Meerwald
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-10-19iio: remove useless irq_enabled variable in at91Peter Meerwald
irq_enabled is only set, but never read Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-10-19drivers/staging/iio: Remove unnecessary semicolonPeter Senna Tschudin
A simplified version of the semantic patch that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r1@ statement S; position p,p1; @@ S@p1;@p @script:python r2@ p << r1.p; p1 << r1.p1; @@ if p[0].line != p1[0].line_end: cocci.include_match(False) @@ position r1.p; @@ -;@p // </smpl> Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-10-13Merge tag 'md-3.7' of git://neil.brown.name/mdLinus Torvalds
Pull md updates from NeilBrown: - "discard" support, some dm-raid improvements and other assorted bits and pieces. * tag 'md-3.7' of git://neil.brown.name/md: (29 commits) md: refine reporting of resync/reshape delays. md/raid5: be careful not to resize_stripes too big. md: make sure manual changes to recovery checkpoint are saved. md/raid10: use correct limit variable md: writing to sync_action should clear the read-auto state. Subject: [PATCH] md:change resync_mismatches to atomic64_t to avoid races md/raid5: make sure to_read and to_write never go negative. md: When RAID5 is dirty, force reconstruct-write instead of read-modify-write. md/raid5: protect debug message against NULL derefernce. md/raid5: add some missing locking in handle_failed_stripe. MD: raid5 avoid unnecessary zero page for trim MD: raid5 trim support md/bitmap:Don't use IS_ERR to judge alloc_page(). md/raid1: Don't release reference to device while handling read error. raid: replace list_for_each_continue_rcu with new interface add further __init annotations to crypto/xor.c DM RAID: Fix for "sync" directive ineffectiveness DM RAID: Fix comparison of index and quantity for "rebuild" parameter DM RAID: Add rebuild capability for RAID10 DM RAID: Move 'rebuild' checking code to its own function ...
2012-10-13Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull TPM bugfixes from James Morris. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: tpm: Propagate error from tpm_transmit to fix a timeout hang driver/char/tpm: fix regression causesd by ppi
2012-10-13Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull ACPI & Thermal updates from Len Brown: "The generic Linux thermal layer is gaining some new capabilities (generic cooling via cpufreq) and some new customers (ARM). Also, an ACPI EC bug fix plus a regression fix." * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (30 commits) tools/power/acpi/acpidump: remove duplicated include from acpidump.c ACPI idle, CPU hotplug: Fix NULL pointer dereference during hotplug cpuidle / ACPI: fix potential NULL pointer dereference ACPI: EC: Add a quirk for CLEVO M720T/M730T laptop ACPI: EC: Make the GPE storm threshold a module parameter thermal: Exynos: Fix NULL pointer dereference in exynos_unregister_thermal() Thermal: Fix bug on cpu_cooling, cooling device's id conflict problem. thermal: exynos: Use devm_* functions ARM: exynos: add thermal sensor driver platform data support thermal: exynos: register the tmu sensor with the kernel thermal layer thermal: exynos5: add exynos5250 thermal sensor driver support hwmon: exynos4: move thermal sensor driver to driver/thermal directory thermal: add generic cpufreq cooling implementation Fix a build error. thermal: Fix potential NULL pointer accesses thermal: add Renesas R-Car thermal sensor support thermal: fix potential out-of-bounds memory access Thermal: Introduce locking for cdev.thermal_instances list. Thermal: Unify the code for both active and passive cooling Thermal: Introduce simple arbitrator for setting device cooling state ...
2012-10-13Merge tag 'for_linus-3.7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb Pull KGDB/KDB fixes and cleanups from Jason Wessel: "Cleanups - Clean up compile warnings in kgdboc.c and x86/kernel/kgdb.c - Add module event hooks for simplified debugging with gdb Fixes - Fix kdb to stop paging with 'q' on bta and dmesg - Fix for data that scrolls off the vga console due to line wrapping when using the kdb pager New - The debug core registers for kernel module events which allows a kernel aware gdb to automatically load symbols and break on entry to a kernel module - Allow kgdboc=kdb to setup kdb on the vga console" * tag 'for_linus-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb: tty/console: fix warnings in drivers/tty/serial/kgdboc.c kdb,vt_console: Fix missed data due to pager overruns kdb: Fix dmesg/bta scroll to quit with 'q' kgdboc: Accept either kbd or kdb to activate the vga + keyboard kdb shell kgdb,x86: fix warning about unused variable mips,kgdb: fix recursive page fault with CONFIG_KPROBES kgdb: Add module event hooks
2012-10-13Merge tag 'mmc-merge-for-3.7-rc1-part2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc Pull two more mmc changes from Chris Ball: - Disintegrate UAPI - fix a mismerge that caused a build error. * tag 'mmc-merge-for-3.7-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: UAPI: (Scripted) Disintegrate include/linux/mmc mmc: mxs-mmc: Fix merge issue causing build error
2012-10-13Merge tag 'dm-3.7-changes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm Pull device-mapper changes from Alasdair G Kergon: "Remove the power-of-2 block size constraint on discards in dm thin provisioning and factor the bio_prison code out into a separate module (for sharing with the forthcoming cache target). Use struct bio's front_pad to eliminate the use of one separate mempool by bio-based devices. A few other tiny clean-ups." * tag 'dm-3.7-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm: dm: store dm_target_io in bio front_pad dm thin: move bio_prison code to separate module dm thin: prepare to separate bio_prison code dm thin: support discard with non power of two block size dm persistent data: convert to use le32_add_cpu dm: use ACCESS_ONCE for sysfs values dm bufio: use list_move dm mpath: fix check for null mpio in end_io fn
2012-10-13Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull misc SCSI updates from James Bottomley: "This is an assorted set of stragglers into the merge window with driver updates for megaraid_sas, lpfc, bfi and mvumi. It also includes some fairly major fixes for virtio-scsi (scatterlist init), scsi_debug (off by one error), storvsc (use after free) and qla2xxx (potential deadlock). Signed-off-by: James Bottomley <JBottomley@Parallels.com>" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (49 commits) [SCSI] storvsc: Account for in-transit packets in the RESET path [SCSI] qla2xxx: fix potential deadlock on ha->hardware_lock [SCSI] scsi_debug: Fix off-by-one bug when unmapping region [SCSI] Shorten the path length of scsi_cmd_to_driver() [SCSI] virtio-scsi: support online resizing of disks [SCSI] virtio-scsi: fix LUNs greater than 255 [SCSI] virtio-scsi: initialize scatterlist structure [SCSI] megaraid_sas: Version, Changelog, Copyright update [SCSI] megaraid_sas: Remove duplicate code [SCSI] megaraid_sas: Add SystemPD FastPath support [SCSI] megaraid_sas: Add array boundary check for SystemPD [SCSI] megaraid_sas: Load io_request DataLength in bytes [SCSI] megaraid_sas: Add module param for configurable MSI-X vector count [SCSI] megaraid_sas: Remove un-needed completion_lock spinlock calls [SCSI] lpfc 8.3.35: Update lpfc version for 8.3.35 driver release [SCSI] lpfc 8.3.35: Fixed not reporting logical link speed to SCSI midlayer when QoS not on [SCSI] lpfc 8.3.35: Fix error with fabric service parameters causing performance issues [SCSI] lpfc 8.3.35: Fixed SCSI host create showing wrong link speed on SLI3 HBA ports [SCSI] lpfc 8.3.35: Fixed not checking solicition in progress bit when verifying FCF record for use [SCSI] lpfc 8.3.35: Fixed messages for misconfigured port errors ...
2012-10-13Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input layer updates from Dmitry Torokhov: "2nd round of updates for the input subsystem. With it input core no longer limits number of character devices per event handler (such as evdev) to 32, but switches to dynamic minors once legacy range is exhausted. This should get multi-seat installations that currently run our of event devices very quickly. You will also get an update for Wacom driver and a couple of driver fixes." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: extend the number of event (and other) devices Input: mousedev - mark mousedev interfaces as non-seekable Input: mousedev - rename mixdev_open to opened_by_mixdev Input: mousedev - reformat structure initializers Input: mousedev - factor out psaux code to reduce #ifdefery Input: samsung-keypad - add clk_prepare and clk_unprepare Input: atmel_mxt_ts - simplify mxt_dump_message Input: wacom - clean up wacom_query_tablet_data Input: wacom - introduce wacom_fix_phy_from_hid Input: wacom - allow any multi-input Intuos device to set prox Input: wacom - report correct touch contact size for I5/Bamboo
2012-10-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking updates from David Miller: 1) Alexey Kuznetsov noticed we routed TCP resets improperly in the assymetric routing case, fix this by reverting a change that made us use the incoming interface in the outgoing route key when we didn't have a socket context to work with. 2) TCP sysctl kernel memory leakage to userspace fix from Alan Cox. 3) Move UAPI bits from David Howells, WIMAX and CAN this time. 4) Fix TX stalls in e1000e wrt. Byte Queue Limits, from Hiroaki SHIMODA, Denys Fedoryshchenko, and Jesse Brandeburg. 5) Fix IPV6 crashes in packet generator module, from Amerigo Wang. 6) Tidies and fixes in the new VXLAN driver from Stephen Hemminger. 7) Bridge IP options parse doesn't check first if SKB header has at least an IP header's worth of content present. Fix from Sarveshwar Bandi. 8) The kernel now generates compound pages on transmit and the Xen netback drivers needs some adjustments in order to handle this. Fix from Ian Campbell. 9) Turn off ASPM in JME driver, from Kevin Bardon and Matthew Garrett. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (43 commits) mcs7830: Fix link state detection net: add doc for in4_pton() net: add doc for in6_pton() vti: fix sparse bit endian warnings tcp: resets are misrouted usbnet: Support devices reporting idleness Add CDC-ACM support for the CX93010-2x UCMxx USB Modem net/ethernet/jme: disable ASPM tcp: sysctl interface leaks 16 bytes of kernel memory kaweth: print correct debug ptr e1000e: Change wthresh to 1 to avoid possible Tx stalls ipv4: fix route mark sparse warning xen: netback: handle compound page fragments on transmit. bridge: Pull ip header into skb->data before looking into ip header. isdn: fix a wrapping bug in isdn_ppp_ioctl() vxlan: fix oops when give unknown ifindex vxlan: fix receive checksum handling vxlan: add additional headroom vxlan: allow configuring port range vxlan: associate with tunnel socket on transmit ...
2012-10-12dm: store dm_target_io in bio front_padMikulas Patocka
Use the recently-added bio front_pad field to allocate struct dm_target_io. Prior to this patch, dm_target_io was allocated from a mempool. For each dm_target_io, there is exactly one bio allocated from a bioset. This patch merges these two allocations into one allocation: we create a bioset with front_pad equal to the size of dm_target_io so that every bio allocated from the bioset has sizeof(struct dm_target_io) bytes before it. We allocate a bio and use the bytes before the bio as dm_target_io. _tio_cache is removed and the tio_pool mempool is now only used for request-based devices. This idea was introduced by Kent Overstreet. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: Kent Overstreet <koverstreet@google.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: tj@kernel.org Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Bill Pemberton <wfp5p@viridian.itc.virginia.edu> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-10-12dm thin: move bio_prison code to separate moduleMike Snitzer
The bio prison code will be useful to other future DM targets so move it to a separate module. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-10-12dm thin: prepare to separate bio_prison codeMike Snitzer
The bio prison code will be useful to share with future DM targets. Prepare to move this code into a separate module, adding a dm prefix to structures and functions that will be exported. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-10-12dm thin: support discard with non power of two block sizeMike Snitzer
Support discards when the pool's block size is not a power of 2. The block layer assumes discard_granularity is a power of 2 (in blkdev_issue_discard), so we set this to the largest power of 2 that is a divides into the number of sectors in each block, but never less than DATA_DEV_BLOCK_SIZE_MIN_SECTORS. This patch eliminates the "Discard support must be disabled when the block size is not a power of 2" constraint that was imposed in commit 55f2b8b ("dm thin: support for non power of 2 pool blocksize"). That commit was incomplete: using a block size that is not a power of 2 shouldn't mean disabling discard support on the device completely. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-10-12mcs7830: Fix link state detectionOndrej Zary
The device had an undocumented "feature": it can provide a sequence of spurious link-down status data even if the link is up all the time. A sequence of 10 was seen so update the link state only after the device reports the same link state 20 times. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Reported-by: Michael Leun <lkml20120218@newton.leun.net> Tested-by: Michael Leun <lkml20120218@newton.leun.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-12dm persistent data: convert to use le32_add_cpuWei Yongjun
Convert cpu_to_le32(le32_to_cpu(E1) + E2) to use le32_add_cpu(). dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-10-12dm: use ACCESS_ONCE for sysfs valuesMikulas Patocka
Use the ACCESS_ONCE macro in dm-bufio and dm-verity where a variable can be modified asynchronously (through sysfs) and we want to prevent compiler optimizations that assume that the variable hasn't changed. (See Documentation/atomic_ops.txt.) Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-10-12dm bufio: use list_moveWei Yongjun
Use list_move() instead of list_del() + list_add(). spatch with a semantic match was used to find this. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-10-12dm mpath: fix check for null mpio in end_io fnWei Yongjun
The mpio dereference should be moved below the BUG_ON NULL test in multipath_end_io(). spatch with a semantic match was used to found this. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-10-12Merge tag 'stable/for-linus-3.7-rc0-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen Pull Xen fixes from Konrad Rzeszutek Wilk: "This has four bug-fixes and one tiny feature that I forgot to put initially in my tree due to oversight. The feature is for kdump kernels to speed up the /proc/vmcore reading. There is a ram_is_pfn helper function that the different platforms can register for. We are now doing that. The bug-fixes cover some embarrassing struct pv_cpu_ops variables being set to NULL on Xen (but not baremetal). We had a similar issue in the past with {write|read}_msr_safe and this fills the three missing ones. The other bug-fix is to make the console output (hvc) be capable of dealing with misbehaving backends and not fall flat on its face. Lastly, a quirk for older XenBus implementations that came with an ancient v3.4 hypervisor (so RHEL5 based) - reading of certain non-existent attributes just hangs the guest during bootup - so we take precaution of not doing that on such older installations. Feature: - Register a pfn_is_ram helper to speed up reading of /proc/vmcore. Bug-fixes: - Three pvops call for Xen were undefined causing BUG_ONs. - Add a quirk so that the shutdown watches (used by kdump) are not used with older Xen (3.4). - Fix ungraceful state transition for the HVC console." * tag 'stable/for-linus-3.7-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen/pv-on-hvm kexec: add quirk for Xen 3.4 and shutdown watches. xen/bootup: allow {read|write}_cr8 pvops call. xen/bootup: allow read_tscp call for Xen PV guests. xen pv-on-hvm: add pfn_is_ram helper for kdump xen/hvc: handle backend CLOSED without CLOSING
2012-10-12xen/pv-on-hvm kexec: add quirk for Xen 3.4 and shutdown watches.Konrad Rzeszutek Wilk
The commit 254d1a3f02ebc10ccc6e4903394d8d3f484f715e, titled "xen/pv-on-hvm kexec: shutdown watches from old kernel" assumes that the XenBus backend can deal with reading of values from: "control/platform-feature-xs_reset_watches": ... a patch for xenstored is required so that it accepts the XS_RESET_WATCHES request from a client (see changeset 23839:42a45baf037d in xen-unstable.hg). Without the patch for xenstored the registration of watches will fail and some features of a PVonHVM guest are not available. The guest is still able to boot, but repeated kexec boots will fail." Sadly this is not true when using a Xen 3.4 hypervisor and booting a PVHVM guest. We end up hanging at: err = xenbus_scanf(XBT_NIL, "control", "platform-feature-xs_reset_watches", "%d", &supported); This can easily be seen with guests hanging at xenbus_init: NX (Execute Disable) protection: active SMBIOS 2.4 present. DMI: Xen HVM domU, BIOS 3.4.0 05/13/2011 Hypervisor detected: Xen HVM Xen version 3.4. Xen Platform PCI: I/O protocol version 1 ... snip .. calling xenbus_init+0x0/0x27e @ 1 Reverting the commit or using the attached patch fixes the issue. This fix checks whether the hypervisor is older than 4.0 and if so does not try to perform the read. Fixes-Oracle-Bug: 14708233 CC: stable@vger.kernel.org Acked-by: Olaf Hering <olaf@aepfle.de> [v2: Added a comment in the source code] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-10-12kdb,vt_console: Fix missed data due to pager overrunsJason Wessel
It is possible to miss data when using the kdb pager. The kdb pager does not pay attention to the maximum column constraint of the screen or serial terminal. This result is not incrementing the shown lines correctly and the pager will print more lines that fit on the screen. Obviously that is less than useful when using a VGA console where you cannot scroll back. The pager will now look at the kdb_buffer string to see how many characters are printed. It might not be perfect considering you can output ASCII that might move the cursor position, but it is a substantially better approximation for viewing dmesg and trace logs. This also means that the vt screen needs to set the kdb COLUMNS variable. Cc: <stable@vger.kernel.org> Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2012-10-12kgdboc: Accept either kbd or kdb to activate the vga + keyboard kdb shellJason Wessel
It is a common enough mistake for people to specify "kdb" when they meant to type "kbd" that the kgdboc can just accept both since they both mean the same thing anyway. Specifically it is for the case where you want kdb to be active on your graphics console + keyboard (where kbd was the original abbreviation for keyboard). With this change kgdboc will now accept either to mean the same thing: kgdboc=kbd kgdboc=kdb Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2012-10-12Merge branch 'v4l_for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull second set of media updates from Mauro Carvalho Chehab: "Despite its size, most of the stuff here is trivial. This series contains: - s5p-mfc: additions at the driver and at the core to support H.264 hardware codec; - Some improvements at s5p and davinci embedded drivers; - Some V4L2 compliance fixes applied on a few drivers; - Several random trivial patches, including several fixes and a few new board support additions; Notes: 1) Some Exynos media patches were dependent on some -arm fixes that got merged on changeset 782cd9e. That's why this pull request is based that changeset. 2) As promised, I reviewed the pending VB2 DMABUF series. While setting a test environment, it was noticed that the upstream support for Samsung Exynos 4 boards (smdk310 and Origen) are broken upstream, likely due to regressions: both defconfigs are wrong and regulator settings for both boards are broken. That, allied with some bug at the dummy regulator driver, causes OOPSes during boot time. Long story short: even fixing the above, the proposed patches OOPSed when running the DMABUF test. Not sure yet if the OOPSes are due to some other undetected regressions, or due to some bug on the patches. Due to the above, DMABUF patches for vb2 got NACKed for 3.7." * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (109 commits) [media] m5mols: Add missing #include <linux/sizes.h> [media] stk1160: Add support for S-Video input Revert "[media] omap3isp: Replace cpu_is_omap3630() with ISP revision check" [media] dvb: LNA implementation changes [media] v4l2-ioctl: fix W=1 warnings [media] v4l2-ioctl: add blocks check for VIDIOC_SUBDEV_G/S_EDID [media] omap3isp: Fix compilation error in ispreg.h [media] rc-msi-digivox-ii: Add full scan keycodes [media] cx25821: testing the wrong variable [media] tda18271-common: hold the I2C adapter during write transfers [media] ds3000: add module parameter to force firmware upload [media] drivers/media: Remove unnecessary semicolon [media] winbond: remove space from driver name [media] iguanair: cannot send data from the stack [media] omap3isp: Replace cpu_is_omap3630() with ISP revision check [media] dvb-usb: print small buffers via %*ph [media] uvc: Add return code check at vb2_queue_init() [media] em28xx: Replace memcpy with struct assignment [media] bt8xx: Add video4linux control V4L2_CID_COLOR_KILLER [media] mem2mem_testdev: Use devm_kzalloc() in probe ... Conflicts: arch/arm/mach-davinci/include/mach/da8xx.h
2012-10-12Merge tag 'pinctrl-for-3.7-late' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull second set of pinctrl patches from Linus Walleij: "Here is a late pinctrl pull request with stuff that wasn't quite tested at the first pull request. The main reason to not hold off is that the modifications to irq_domain_add_simple() as reviewed by Rob Herring introduce new infrastructure for irqdomains that will be useful for the next cycle: instead of sprinkling irq descriptor allocation all over the kernel wherever a "legacy" domain is registered, which is necessary for any platform using sparse IRQs, and many irq chips are say GPIO controllers which may be used with several systems, some with sparse IRQs some not, we push this into the irq_domain_add_simple() so we can atleast do mistakes in one place. The irq_domain_add_simple() is currently unused in the kernel, so I need to provide a user. The Nomadik stuff that goes with are changes to the driver I use day-to-day to make use of this facility (and a dependency), so see it as a way to eat my own dogfood: if this blows up the egg hits my face. A second round of pinctrl patches for v3.7: - Complement the Nomadik pinctrl driver with alternate Cx functions so it handles all oddities. - A patch to the IRQdomain to reform the simple irqdomain to handle IRQ descriptor allocation dynamically. - Use the above feature in the Nomadik pin controller." * tag 'pinctrl-for-3.7-late' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl/nomadik: use simple or linear IRQ domain irqdomain: augment add_simple() to allocate descs pinctrl/nomadik: support other alternate-C functions
2012-10-12Merge tag 'fbdev-updates-for-3.7' of git://github.com/schandinat/linux-2.6Linus Torvalds
Pull fbdev updates from Florian Tobias Schandinat: "This includes: - large updates for OMAP - basic OMAP5 DSS support for DPI and DSI outputs - large cleanups and restructuring - some update to Exynos and da8xx-fb - removal of the pnx4008 driver (arch removed) - various other small patches" Fix up some trivial conflicts (mostly just include line changes, but also some due to the renaming of the deferred work functions by Tejun). * tag 'fbdev-updates-for-3.7' of git://github.com/schandinat/linux-2.6: (193 commits) gbefb: fix compile error video: mark nuc900fb_map_video_memory as __devinit video/mx3fb: set .owner to prevent module unloading while being used video: exynos_dp: use clk_prepare_enable and clk_disable_unprepare drivers/video/exynos/exynos_mipi_dsi.c: fix error return code drivers/video/savage/savagefb_driver.c: fix error return code video: s3c-fb: use clk_prepare_enable and clk_disable_unprepare da8xx-fb: save and restore LCDC context across suspend/resume cycle da8xx-fb: add pm_runtime support video/udlfb: fix line counting in fb_write OMAPDSS: add missing include for string.h OMAPDSS: DISPC: Configure color conversion coefficients for writeback OMAPDSS: DISPC: Add manager like functions for writeback OMAPDSS: DISPC: Configure writeback FIFOs OMAPDSS: DISPC: Configure writeback specific parameters in dispc_wb_setup() OMAPDSS: DISPC: Configure overlay-like parameters in dispc_wb_setup OMAPDSS: DISPC: Add function to set channel in for writeback OMAPDSS: DISPC: Don't set chroma resampling bit for writeback OMAPDSS: DISPC: Downscale chroma if plane is writeback OMAPDSS: DISPC: Configure input and output sizes for writeback ...
2012-10-11mmc: mxs-mmc: Fix merge issue causing build errorMarek Vasut
The following error appeared due to a merge problem; the patches: fc108d24 "mmc: mxs-mmc: fix deadlock caused by recursion loop" 829c1bf4 "mmc: spi: Pull out parts shared between MMC and SPI" came in through separate branches and cause this build error when combined. drivers/mmc/host/mxs-mmc.c: In function 'mxs_mmc_enable_sdio_irq': drivers/mmc/host/mxs-mmc.c:527:3: error: 'struct mxs_mmc_host' has no member named 'base' drivers/mmc/host/mxs-mmc.c:527:3: error: 'struct mxs_mmc_host' has no member named 'devid' make[3]: *** [drivers/mmc/host/mxs-mmc.o] Error 1 This patch corrects the issue. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2012-10-11usbnet: Support devices reporting idlenessOliver Neukum
Some device types support a form of power management in which the device suggests to the host that the device may be suspended now. Support for that is best located in usbnet. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-11Add CDC-ACM support for the CX93010-2x UCMxx USB ModemJean-Christian de Rivaz
This USB V.92/V.32bis Controllered Modem have the USB vendor ID 0x0572 and device ID 0x1340. It need the NO_UNION_NORMAL quirk to be recognized. Reference: http://www.conexant.com/servlets/DownloadServlet/DSH-201723-005.pdf?docid=1725&revid=5 See idVendor and idProduct in table 6-1. Device Descriptors Signed-off-by: Jean-Christian de Rivaz <jc@eclis.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-11net/ethernet/jme: disable ASPMKevin Baradon
Based on patch from Matthew Garrett <mjg@redhat.com> (https://lkml.org/lkml/2011/11/11/168). http://driveragent.com/archive/30421/7-0-14 indicates that ASPM is disabled on the 250 and 260. Duplicate for sanity. Fixes random RX engine hangs I experienced with JMC250 on Clevo W270HU. Signed-off-by: Kevin Baradon <kevin.baradon@gmail.com> Cc: Guo-Fu Tseng <cooldavid@cooldavid.org> Cc: Matthew Garrett <mjg@redhat.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-11kaweth: print correct debug ptrAlan Cox
We nowdays copy the buffer and free fw->data, so make the debug printk use the right thing. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-11Merge branch 'staging/for_v3.7' into v4l_for_linusMauro Carvalho Chehab
Applied on the top of changeset 782cd9e, as some of those patches depend on some fixes that went via -arm tree. * staging/for_v3.7: (109 commits) [media] m5mols: Add missing #include <linux/sizes.h> [media] stk1160: Add support for S-Video input Revert "[media] omap3isp: Replace cpu_is_omap3630() with ISP revision check" [media] dvb: LNA implementation changes [media] v4l2-ioctl: fix W=1 warnings [media] v4l2-ioctl: add blocks check for VIDIOC_SUBDEV_G/S_EDID [media] omap3isp: Fix compilation error in ispreg.h [media] rc-msi-digivox-ii: Add full scan keycodes [media] cx25821: testing the wrong variable [media] tda18271-common: hold the I2C adapter during write transfers [media] ds3000: add module parameter to force firmware upload [media] drivers/media: Remove unnecessary semicolon [media] winbond: remove space from driver name [media] iguanair: cannot send data from the stack [media] omap3isp: Replace cpu_is_omap3630() with ISP revision check [media] dvb-usb: print small buffers via %*ph [media] uvc: Add return code check at vb2_queue_init() [media] em28xx: Replace memcpy with struct assignment [media] bt8xx: Add video4linux control V4L2_CID_COLOR_KILLER [media] mem2mem_testdev: Use devm_kzalloc() in probe ...
2012-10-11Merge branch 'tpmdd-next-v3.6' of git://github.com/shpedoikal/linux into ↵James Morris
for-linus
2012-10-11Merge branch 'tpmdd-fixes-v3.6' of git://github.com/shpedoikal/linux into ↵James Morris
for-linus
2012-10-11Merge branch 'next' into for-linusDmitry Torokhov
Prepare second set of updates for 3.7 merge window (Wacom driver update and patches extending number of input minors).
2012-10-11md: refine reporting of resync/reshape delays.NeilBrown
If 'resync_max' is set to 0 (as is often done when starting a reshape, so the mdadm can remain in control during a sensitive period), and if the reshape request is initially delayed because another array using the same array is resyncing or reshaping etc, when user-space cannot easily tell when the delay changes from being due to a conflicting reshape, to being due to resync_max = 0. So introduce a new state: (curr_resync == 3) to reflect this, make sure it is visible both via /proc/mdstat and via the "sync_completed" sysfs attribute, and ensure that the event transition from one delay state to the other is properly notified. Signed-off-by: NeilBrown <neilb@suse.de>
2012-10-11md/raid5: be careful not to resize_stripes too big.NeilBrown
When a RAID5 is reshaping, conf->raid_disks is increased before mddev->delta_disks becomes zero. This can result in check_reshape calling resize_stripes with a number that is too large. This particularly happens when md_check_recovery calls ->check_reshape(). If we use ->previous_raid_disks, we don't risk this. Signed-off-by: NeilBrown <neilb@suse.de>