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2013-06-04net: fix sk_buff head without data areaPablo Neira
Eric Dumazet spotted that we have to check skb->head instead of skb->data as skb->head points to the beginning of the data area of the skbuff. Similarly, we have to initialize the skb->head pointer, not skb->data in __alloc_skb_head. After this fix, netlink crashes in the release path of the sk_buff, so let's fix that as well. This bug was introduced in (0ebd0ac net: add function to allocate sk_buff head without data area). Reported-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-04tg3: Add read dma workaround for 5720Nithin Sujir
Commit 091f0ea30074bc43f9250961b3247af713024bc6 "tg3: Add New 5719 Read DMA workaround" added a workaround for TX DMA stall on the 5719. This workaround needs to be applied to the 5720 as well. Cc: stable@vger.kernel.org Reported-by: Roland Dreier <roland@purestorage.com> Tested-by: Roland Dreier <roland@purestorage.com> Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-04net: ethernet: xilinx_emaclite: set protocol selector bits when writing ANARJens Renner \(EFE\)
This patch sets the protocol selector bits (4:0) of the PHY's MII_ADVERTISE register (ANAR) when writing ADVERTISE_ALL. The protocol selector bits are indicating IEEE 803.3u support and are fixed / read-only on some PHYs. Not setting them correctly on others (like TI DP83630) makes the PHY fall back to 10M HDX mode which should be avoided. Tested for TI DP83630 PHY on Microblaze platform. Signed-off-by: Jens Renner <renner@efe-gmbh.de> Tested-by: Michal Simek <monstr@monstr.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-04bnx2x: Fix bridged GSO for 57710/57711 chipsYuval Mintz
It was recently found out that GSO on 57710/57711 was broken, due to packets being sent without a valid IP checksum. Commit 057cf65 "bnx2x: Fix GSO for 57710/57711 chips" partially fixed this issue, but failed to set the correct IP checksum when receiving GSO packets via bridges, as such packets enter bnx2x_tx_split() and the FW flags needed to calculate IP checksum were erroneously set in the incorrect buffer descriptor. This patch re-enables GSO in said scenario for 57710/57711 chips. Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-05Merge tag 'mmc-fixes-for-3.10-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc Pull MMC fixes from Chris Ball: - sdhci-acpi: Fix initial runtime PM status, add more ACPI IDs - atmel-mci, omap_hsmmc: DT handling fixes - esdhc-imx: Fix SDIO IRQs, fix multiblock reads (both h/w errata) * tag 'mmc-fixes-for-3.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: mmc: omap_hsmmc: Skip platform_get_resource_byname() for dt case mmc: omap_hsmmc: convert to dma_request_slave_channel_compat mmc: omap_hsmmc: Fix the DT pbias workaround for MMC controllers 2 to 5 mmc: sdhci-pci: add more device ids mmc: sdhci-acpi: add more device ids mmc: sdhci-acpi: fix initial runtime pm status mmc: atmel-mci: convert to dma_request_slave_channel_compat() mmc: sdhci-esdhc-imx: fix multiblock reads on i.MX53 mmc: sdhci-esdhc-imx: Fix SDIO interrupts
2013-06-05Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input fixes from Dmitry Torokhov: "Just a 2 small driver fixups here" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: wacom - fix a typo for Cintiq 22HDT Input: synaptics - fix sync lost after resume on some laptops
2013-06-05Merge branch 'fixes' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm bugfixes from Gleb Natapov: "The bulk of the fixes is in MIPS KVM kernel<->userspace ABI. MIPS KVM is new for 3.10 and some problems were found with current ABI. It is better to fix them now and do not have a kernel with broken one" * 'fixes' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: Fix race in apic->pending_events processing KVM: fix sil/dil/bpl/spl in the mod/rm fields KVM: Emulate multibyte NOP ARM: KVM: be more thorough when invalidating TLBs ARM: KVM: prevent NULL pointer dereferences with KVM VCPU ioctl mips/kvm: Use ENOIOCTLCMD to indicate unimplemented ioctls. mips/kvm: Fix ABI by moving manipulation of CP0 registers to KVM_{G,S}ET_ONE_REG mips/kvm: Use ARRAY_SIZE() instead of hardcoded constants in kvm_arch_vcpu_ioctl_{s,g}et_regs mips/kvm: Fix name of gpr field in struct kvm_regs. mips/kvm: Fix ABI for use of 64-bit registers. mips/kvm: Fix ABI for use of FPU.
2013-06-04Merge branches 'iser' and 'qib' into for-nextRoland Dreier
2013-06-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixesLinus Torvalds
Pull gfs2 fixes from Steven Whitehouse: "There are four patches this time. The first fixes a problem where the wrong descriptor type was being written into the log for journaled data blocks. The second fixes a race relating to the deallocation of allocator data. The third provides a fallback if kmalloc is unable to satisfy a request to allocate a directory hash table. The fourth fixes the iopen glock caching so that inodes are deleted in a more timely manner after rmdir/unlink" * git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes: GFS2: Don't cache iopen glocks GFS2: Fall back to vmalloc if kmalloc fails for dir hash tables GFS2: Increase i_writecount during gfs2_setattr_size GFS2: Set log descriptor type for jdata blocks
2013-06-04IB/qib: Fix lockdep splat in qib_alloc_lkey()Mike Marciniszyn
The following backtrace is reported with CONFIG_PROVE_RCU: drivers/infiniband/hw/qib/qib_keys.c:64 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 1, debug_locks = 1 4 locks held by kworker/0:1/56: #0: (events){.+.+.+}, at: [<ffffffff8107a4f5>] process_one_work+0x165/0x4a0 #1: ((&wfc.work)){+.+.+.}, at: [<ffffffff8107a4f5>] process_one_work+0x165/0x4a0 #2: (device_mutex){+.+.+.}, at: [<ffffffffa0148dd8>] ib_register_device+0x38/0x220 [ib_core] #3: (&(&dev->lk_table.lock)->rlock){......}, at: [<ffffffffa017e81c>] qib_alloc_lkey+0x3c/0x1b0 [ib_qib] stack backtrace: Pid: 56, comm: kworker/0:1 Not tainted 3.10.0-rc1+ #6 Call Trace: [<ffffffff810c0b85>] lockdep_rcu_suspicious+0xe5/0x130 [<ffffffffa017e8e1>] qib_alloc_lkey+0x101/0x1b0 [ib_qib] [<ffffffffa0184886>] qib_get_dma_mr+0xa6/0xd0 [ib_qib] [<ffffffffa01461aa>] ib_get_dma_mr+0x1a/0x50 [ib_core] [<ffffffffa01678dc>] ib_mad_port_open+0x12c/0x390 [ib_mad] [<ffffffff810c2c55>] ? trace_hardirqs_on_caller+0x105/0x190 [<ffffffffa0167b92>] ib_mad_init_device+0x52/0x110 [ib_mad] [<ffffffffa01917c0>] ? sl2vl_attr_show+0x30/0x30 [ib_qib] [<ffffffffa0148f49>] ib_register_device+0x1a9/0x220 [ib_core] [<ffffffffa01b1685>] qib_register_ib_device+0x735/0xa40 [ib_qib] [<ffffffff8106ba98>] ? mod_timer+0x118/0x220 [<ffffffffa017d425>] qib_init_one+0x1e5/0x400 [ib_qib] [<ffffffff812ce86e>] local_pci_probe+0x4e/0x90 [<ffffffff81078118>] work_for_cpu_fn+0x18/0x30 [<ffffffff8107a566>] process_one_work+0x1d6/0x4a0 [<ffffffff8107a4f5>] ? process_one_work+0x165/0x4a0 [<ffffffff8107c9c9>] worker_thread+0x119/0x370 [<ffffffff8107c8b0>] ? manage_workers+0x180/0x180 [<ffffffff8108294e>] kthread+0xee/0x100 [<ffffffff81082860>] ? __init_kthread_worker+0x70/0x70 [<ffffffff815c04ac>] ret_from_fork+0x7c/0xb0 [<ffffffff81082860>] ? __init_kthread_worker+0x70/0x70 Per Documentation/RCU/lockdep-splat.txt, the code now uses rcu_access_pointer() vs. rcu_dereference(). Reported-by: Jay Fenlason <fenlason@redhat.com> Reviewed-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-05Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse Pull fuse fixes from Miklos Szeredi: "One patch fixes an Oops introduced in 3.9 with the readdirplus feature. The rest are fixes for async-dio in 3.10" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: fuse: fix alignment in short read optimization for async_dio fuse: return -EIOCBQUEUED from fuse_direct_IO() for all async requests fuse: fix readdirplus Oops in fuse_dentry_revalidate fuse: update inode size and invalidate attributes on fallocate fuse: truncate pagecache range on hole punch fuse: allocate for_background dio requests based on io->async state
2013-06-04MAINTAINERS: Add entry for iSCSI Extensions for RDMA (iSER) initiatorOr Gerlitz
Add entry for the iSER initiator driver and which is maintained by Or Gerlitz and Roi Dayan below the kernel InfiniBand subsystem. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-04IB/iser: Add Mellanox copyrightOr Gerlitz
Add Mellanox copyright to the iser initiator source code which I maintain. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-04IB/iser: Fix device removal flowRoi Dayan
Change the code to destroy the "last opened" rdma_cm id after making sure we released all other objects (QP, CQs, PD, etc) associated with the IB device. Since iser accesses the IB device using the rdma_cm id, we need to free any objects that are related to the device that is associated with the rdma_cm id prior to destroying that id. When this isn't done, the low level driver that created this device can be unloaded before iser has a chance to free all the objects and a such a call may invoke code segment which isn't valid any more and crash. Cc: Sean Hefty <sean.hefty@intel.com Signed-off-by: Roi Dayan <roid@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-06-05Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds
Pull microblaze fixes from Michal Simek: "One is fixing warning reported by sparse and the second warning was reported by Geert in his build regressions/improvements status update for -rc4." * 'next' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Use static inline functions in cacheflush.h microblaze: Fix sparse warnings
2013-06-04net: fec: add fallback to random MAC addressLucas Stach
If no valid MAC address could be obtained from the hardware, fall back to a randomly generated one. Signed-off-by: Pavel Machek <pavel@denx.de> Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-04bnx2x: fix TCP offload for tunneling ipv4 over ipv6Dmitry Kravkov
FW was initialized with data from wrong header, this caused TSO packets have wrong IP csum. Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-04ipv6: assign rt6_info to inet6_ifaddr in init_loopbackGao feng
Commit 25fb6ca4ed9cad72f14f61629b68dc03c0d9713f "net IPv6 : Fix broken IPv6 routing table after loopback down-up" forgot to assign rt6_info to the inet6_ifaddr. When disable the net device, the rt6_info which allocated in init_loopback will not be destroied in __ipv6_ifa_notify. This will trigger the waring message below [23527.916091] unregister_netdevice: waiting for tap0 to become free. Usage count = 1 Reported-by: Arkadiusz Miskiewicz <a.miskiewicz@gmail.com> Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-04Merge branch 'fixes-for-3.10' of git://gitorious.org/linux-can/linux-canDavid S. Miller
Marc Kleine-Budde says: ==================== here are there fixes for the v3.10 release cycle: The first patch by Jonas Peterson and Olivier Sobrie fixes the reception of CAN frames on Kvaser's "USBcan Pro" and "USBcan R" type hardware. The last two patches by Olivier Sobrie (for esd_usb2) and me (for peak_usb) change the memory handling for the USB messages from stack to kmalloc(), as memory used for DMA should not be allocated on stack. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-04net/mlx4_core: Keep VF assigned MAC in the PF admin tableOr Gerlitz
MAC addresses assigned by the PF to VFs were not kept in the PF driver admin table. As a result, displaying the VF MACs from the PF interface to user space showed zero address where in fact the VF got non-zero address from the PF, fix that. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-04net/mlx4_en: Handle unassigned VF MAC address correctlyOr Gerlitz
When a VF sense they didn't get MAC address, use random one. This will address the case of administrator not assigning MAC to the VF through the PF OS APIs and keep udev happy. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-04net/mlx4_core: Return -EPROBE_DEFER when a VF is probed before PF is ↵Jack Morgenstein
sufficiently initialized In the PF initialization, SRIOV is enabled before the PF is fully initialized. This allows the kernel to probe the newly-exposed VFs before the PF is ready to handle them (nested probes). Have the probe method return the -EPROBE_DEFER value in this situation (instead of the VF probe method retrying its initialization in a loop, and returning -EIO on failure). When -EPROBE_DEFER is returned by the VF probe method, the kernel itself will retry the probe after a suitable delay. Based upon a suggestion by Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-04net/mlx4_en: Fix adaptive moderation cq updateSagi Grimberg
When turning on adaptive_rx under adaptive moderation, the CQ's moderation count wasn't updated according to rx_frames which resulted in too many interrupts and bandwidth drop. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-04Merge tag 'iio-fixes-for-3.10b' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus Jonathan writes: Second round of IIO fixes for the 3.10 cycle. A couple of little bits and pieces, some delayed due to traveling. 1) A memory leak fix in the callback buffer. 2) Wrong exit path due to a return when it should have been a goto. 3) Bug in a mask value in ad4350 4) Reading the wrong value in raw to processed utility function.
2013-06-04Merge remote-tracking branch 'spi/fix/xilinx' into spi-linusMark Brown
2013-06-04Merge remote-tracking branch 'spi/fix/topcliff' into spi-linusMark Brown
2013-06-04Merge remote-tracking branch 'spi/fix/hspi' into spi-linusMark Brown
2013-06-04Merge remote-tracking branch 'spi/fix/core' into spi-linusMark Brown
2013-06-04spi: hspi: fixup long delay timeKuninori Morimoto
Current HSPI driver is using msleep(20) on hspi_status_check_timeout(), but it was too long delay for SPI device. Bock-W board SPI access was too slow without this patch. This patch uses udelay(10) for it. Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-06-04iio:inkern: Fix typo/bug in convert raw to processed.Michael Hennerich
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-06-04iio: frequency: ad4350: Fix bug / typo in maskMichael Hennerich
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-06-04spi: spi-xilinx: Remove ISR race conditionPeter Crosthwaite
The ISR currently consumes the rx buffer data and re-enables transmission from within interrupt context. This is bad because if the interrupt occurs again before the ISR exits, the new interrupt will be erroneously cleared by the still completing ISR. Simplified the ISR by just setting the completion variable and exiting with no action. Then just looped the transmit functionality in xilinx_spi_txrx_bufs(). Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-06-04inkern: iio_device_put after incorrect return/gotoJoe Perches
The code uses return foo; goto err_type; when instead the form should have been ret = foo; goto err_type; Here this causes a useful iio_device_put to be skipped. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-06-04staging: alarm-dev: information leak in alarm_compat_ioctl()Dan Carpenter
If we pass an invalid clock type then "ts" is never set. We need to check for errors earlier, otherwise we end up passing uninitialized stack data to userspace. Reported-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-04iio:callback buffer: free the scan_maskJonathan Cameron
Reported-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-06-04USB: mos7720: fix hardware flow controlJohan Hovold
The register access to enable hardware flow control depends on the device port number and not the port minor number. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-04USB: keyspan: remove unused endpoint-array accessJohan Hovold
Remove the no longer used endpoint-array access completely. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-04USB: keyspan: fix bogus array indexJohan Hovold
The outcont_endpoints array was indexed using the port minor number (which can be greater than the array size) rather than the device port number. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-04USB: zte_ev: fix broken openJohan Hovold
Remove bogus port-number check in open and close, which prevented this driver from being used with a minor number different from zero. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-04Input: wacom - fix a typo for Cintiq 22HDTPing Cheng
And make the lines easier to read. Signed-off-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2013-06-04Input: synaptics - fix sync lost after resume on some laptopsEric Miao
In summary, the symptom is intermittent key events lost after resume on some machines with synaptics touchpad (seems this is synaptics _only_), and key events loss is due to serio port reconnect after psmouse sync lost. Removing psmouse and inserting it back during the suspend/resume process is able to work around the issue, so the difference between psmouse_connect() and psmouse_reconnect() is the key to the root cause of this problem. After comparing the two different paths, synaptics driver has its own implementation of synaptics_reconnect(), and the missing psmouse_probe() seems significant, the patch below added psmouse_probe() to the reconnect process, and has been verified many times that the issue could not be reliably reproduced. There are two PS/2 commands in psmouse_probe(): 1. PSMOUSE_CMD_GETID 2. PSMOUSE_CMD_RESET_DIS Only the PSMOUSE_CMD_GETID seems to be significant. The PSMOUSE_CMD_RESET_DIS is irrelevant to this issue after trying several times. So we have only implemented this patch to issue the PSMOUSE_CMD_GETID so far. Tested-by: Daniel Manrique <daniel.manrique@canonical.com> Signed-off-by: James M Leddy <james.leddy@canonical.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2013-06-04drm/i915/sdvo: Use &intel_sdvo->ddc instead of intel_sdvo->i2c for DDC.Egbert Eich
In intel_sdvo_get_lvds_modes() the wrong i2c adapter record is used for DDC. Thus the code will always have to rely on a LVDS panel mode supplied by VBT. In most cases this succeeds, so this didn't get detected for quite a while. This regression seems to have been introduced in commit f899fc64cda8569d0529452aafc0da31c042df2e Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Tue Jul 20 15:44:45 2010 -0700 drm/i915: use GMBUS to manage i2c links Signed-off-by: Egbert Eich <eich@suse.de> Cc: stable@vger.kernel.org Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> [danvet: Add note about which commit likely introduced this issue.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-06-04ALSA: usb-audio - Apply Logitech QuickCam Pro 9000 quirk only to audio ifaceTakashi Iwai
... instead of applying to all interfaces. Reference: http://forums.gentoo.org/viewtopic-p-6886404.html Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-06-04xen/smp: Fixup NOHZ per cpu data when onlining an offline CPU.Konrad Rzeszutek Wilk
The xen_play_dead is an undead function. When the vCPU is told to offline it ends up calling xen_play_dead wherin it calls the VCPUOP_down hypercall which offlines the vCPU. However, when the vCPU is onlined back, it resumes execution right after VCPUOP_down hypercall. That was OK (albeit the API for play_dead assumes that the CPU stays dead and never returns) but with commit 4b0c0f294 (tick: Cleanup NOHZ per cpu data on cpu down) that is no longer safe as said commit resets the ts->inidle which at the start of the cpu_idle loop was set. The net effect is that we get this warn: Broke affinity for irq 16 installing Xen timer for CPU 1 cpu 1 spinlock event irq 48 ------------[ cut here ]------------ WARNING: at /home/konrad/linux-linus/kernel/time/tick-sched.c:935 tick_nohz_idle_exit+0x195/0x1b0() Modules linked in: dm_multipath dm_mod xen_evtchn iscsi_boot_sysfs CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.10.0-rc3upstream-00068-gdcdbe33 #1 Hardware name: BIOSTAR Group N61PB-M2S/N61PB-M2S, BIOS 6.00 PG 09/03/2009 ffffffff8193b448 ffff880039da5e60 ffffffff816707c8 ffff880039da5ea0 ffffffff8108ce8b ffff880039da4010 ffff88003fa8e500 ffff880039da4010 0000000000000001 ffff880039da4000 ffff880039da4010 ffff880039da5eb0 Call Trace: [<ffffffff816707c8>] dump_stack+0x19/0x1b [<ffffffff8108ce8b>] warn_slowpath_common+0x6b/0xa0 [<ffffffff8108ced5>] warn_slowpath_null+0x15/0x20 [<ffffffff810e4745>] tick_nohz_idle_exit+0x195/0x1b0 [<ffffffff810da755>] cpu_startup_entry+0x205/0x250 [<ffffffff81661070>] cpu_bringup_and_idle+0x13/0x15 ---[ end trace 915c8c486004dda1 ]--- b/c ts_inidle is set to zero. Thomas suggested that we just add a workaround to call tick_nohz_idle_enter before returning from xen_play_dead() - and that is what this patch does and fixes the issue. We also add the stable part b/c git commit 4b0c0f294 is on the stable tree. CC: stable@vger.kernel.org Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2013-06-04ARM: shmobile: sh73a0: Update CMT clockevent rating to 80Simon Horman
Update the CMT clockevent rating from 125 to 80. This resolves a boot-failure regression for kzm9g-reference in v3.10-rc1 introduced by f7db706b132f11c79ae1d74b2382e0926cf31644 ("ARM: 7674/1: smp: Avoid dummy clockevent being preferred over real"). The patch noted above reduces the rating of dummy clockevent from 400 to 100. This patch reduces the rating of CMT so that it is once again less than that of the dummy clockevent. Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-06-04sh-pfc: r8a7779: Don't group USB OVC and PENC pinsLaurent Pinchart
The USB_OVCn pins are alternate options for USB over-current detection when using a 3.3V USB interface. As they're not mandatory they can be used independently of the USB PENC pins. Don't group the USB_OVCn and PENC pins to avoid conflicts when the USB_OVCn pins are used by another function. Reported-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-06-04Merge tag 'regulator-v3.10-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator Pull regulator fixes from Mark Brown: "A few small fixes for v3.10, documentation things in the core and a few driver bugs." * tag 'regulator-v3.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: regulator: palmas: Fix "enable_reg" to point to the correct reg for SMPS10 regulator: palmas: Fix incorrect condition regulator: core: Correct spelling mistake in comment regulator: dbx500: Make local symbol static regulator: Fix kernel-doc generation warnings.
2013-06-04Merge tag 'jfs-3.10-rc5' of git://github.com/kleikamp/linux-shaggyLinus Torvalds
Pull jfs bugfixes from David Kleikamp: "A couple jfs bug fixes for 3.10-rc5" * tag 'jfs-3.10-rc5' of git://github.com/kleikamp/linux-shaggy: fs/jfs: Add check if journaling to disk has been disabled in lbmRead() jfs: Several bugs in jfs_freeze() and jfs_unfreeze()
2013-06-03staging: alarm-dev: information leak in alarm_ioctl()Dan Carpenter
Smatch complains that if we pass an invalid clock type then "ts" is never set. We need to check for errors earlier, otherwise we end up passing uninitialized stack data to userspace. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-03USB: serial: Add Option GTM681W to qcserial device table.Richard Weinberger
The Option GTM681W uses a qualcomm chip and can be served by the qcserial device driver. Signed-off-by: Richard Weinberger <richard@nod.at> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>