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2012-09-28Merge remote-tracking branches 'regulator/topic/core', ↵Mark Brown6-1/+96
'regulator/topic/bypass', 'regulator/topic/tol', 'regulator/topic/drivers' and 'regulator/topic/tps6586x' into regulator-next
2012-09-17Merge tag 'mfd-for-linus-3.6-2' of ↵Linus Torvalds2-4/+12
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 Pull mfd fixes from Samuel Ortiz: "This is the remaining MFD fixes for 3.6, with 5 pending fixes: - A tps65217 build error fix. - A lcp_ich regression fix caused by the MFD driver failing to initialize the watchdog sub device due to ACPI conflicts. - 2 MAX77693 interrupt handling bug fixes. - An MFD core fix, adding an IRQ domain argument to the MFD device addition API in order to prevent silent and potentially harmful remapping behaviour changes for drivers supporting non-DT platforms." * tag 'mfd-for-linus-3.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: mfd: MAX77693: Fix NULL pointer error when initializing irqs mfd: MAX77693: Fix interrupt handling bug mfd: core: Push irqdomain mapping out into devices mfd: lpc_ich: Fix a 3.5 kernel regression for iTCO_wdt driver mfd: Move tps65217 regulator plat data handling to regulator
2012-09-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pendingLinus Torvalds2-1/+4
Pull scsi target fixes from Nicholas Bellinger: "Here is the current set of target-pending fixes headed for v3.6-final The main parts of this series include bug-fixes from Paolo Bonzini to address an use-after-free bug in pSCSI sense exception handling, along with addressing some long-standing bugs wrt the handling of zero- length SCSI CDB payloads also specific to pSCSI pass-through device backends." * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: target: go through normal processing for zero-length REQUEST_SENSE target: support zero allocation length in REQUEST SENSE target: support zero-size allocation lengths in transport_kmap_data_sg target: fail REPORT LUNS with less than 16 bytes of payload target: report too-small parameter lists everywhere target: go through normal processing for zero-length PSCSI commands target: fix use-after-free with PSCSI sense data target: simplify code around transport_get_sense_data target: move transport_get_sense_data target: Check idr_get_new return value in iscsi_login_zero_tsih_s1 target: Fix ->data_length re-assignment bug with SCSI overflow
2012-09-16Merge tag 'sound-3.6' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull more sound fixes from Takashi Iwai: "Yet more (a bunch of) small fixes that slipped from the previous pull request. Most of commits are pending ASoC fixes, all of which are fairly trivial commits." * tag 'sound-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ASoC: wm8904: correct the index ALSA: hda - Yet another position_fix quirk for ASUS machines ASoC: tegra: fix maxburst settings in dmaengine code ASoC: samsung dma - Don't indicate support for pause/resume. ASoC: mc13783: Remove mono support ASoC: arizona: Fix typo in 44.1kHz rates ASoC: spear: correct the check for NULL dma_buffer pointer sound: tegra_alc5632: remove HP detect GPIO inversion ASoC: atmel-ssc: include linux/io.h for raw io ASoC: dapm: Don't force card bias level to be updated ASoC: dapm: Make sure we update the bias level for CODECs with no op ASoC: am3517evm: fix error return code ASoC: ux500_msp_i2s: better use devm functions and fix error return code ASoC: imx-sgtl5000: fix error return code
2012-09-16Revert "sched: Improve scalability via 'CPU buddies', which withstand random ↵Linus Torvalds1-1/+0
perturbations" This reverts commit 970e178985cadbca660feb02f4d2ee3a09f7fdda. Nikolay Ulyanitsky reported thatthe 3.6-rc5 kernel has a 15-20% performance drop on PostgreSQL 9.2 on his machine (running "pgbench"). Borislav Petkov was able to reproduce this, and bisected it to this commit 970e178985ca ("sched: Improve scalability via 'CPU buddies' ...") apparently because the new single-idle-buddy model simply doesn't find idle CPU's to reschedule on aggressively enough. Mike Galbraith suspects that it is likely due to the user-mode spinlocks in PostgreSQL not reacting well to preemption, but we don't really know the details - I'll just revert the commit for now. There are hopefully other approaches to improve scheduler scalability without it causing these kinds of downsides. Reported-by: Nikolay Ulyanitsky <lystor@gmail.com> Bisected-by: Borislav Petkov <bp@alien8.de> Acked-by: Mike Galbraith <efault@gmx.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-09-16mfd: core: Push irqdomain mapping out into devicesMark Brown1-1/+3
Currently the MFD core supports remapping MFD cell interrupts using an irqdomain but only if the MFD is being instantiated using device tree and only if the device tree bindings use the pattern of registering IPs in the device tree with compatible properties. This will be actively harmful for drivers which support non-DT platforms and use this pattern for their DT bindings as it will mean that the core will silently change remapping behaviour and it is also limiting for drivers which don't do DT with this particular pattern. There is also a potential fragility if there are interrupts not associated with MFD cells and all the cells are omitted from the device tree for some reason. Instead change the code to take an IRQ domain as an optional argument, allowing drivers to take the decision about the parent domain for their interrupts. The one current user of this feature is ab8500-core, it has the domain lookup pushed out into the driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-09-15Merge tag 'asoc-3.6' of ↵Takashi Iwai39-63/+110
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Updates for 3.6 A bigger set of updates than I'm entirely comfortable with - things backed up a bit due to travel. As ever the majority of these are small, focused updates for specific drivers though there are a couple of core changes. There's been good exposure in -next. The AT91 patch fixes a build break.
2012-09-15Merge branch 'i2c-embedded/for-current' of ↵Linus Torvalds1-0/+1
git://git.pengutronix.de/git/wsa/linux Pull i2c embedded fixes from Wolfram Sang: "The last bunch of (typical) i2c-embedded driver fixes for 3.6. Also update the MAINTAINERS file to point to my tree since people keep asking where to find their patches." * 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux: i2c: algo: pca: Fix mode selection for PCA9665 MAINTAINERS: fix tree for current i2c-embedded development i2c: mxs: correctly setup speed for non devicetree i2c: pnx: Fix read transactions of >= 2 bytes i2c: pnx: Fix bit definitions
2012-09-15Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds1-5/+1
Pull drm fixes from Dave Airlie: "I realise this a bit bigger than I would want at this point. Exynos is a large chunk, I got them to half what they wanted already, and hey its ARM based, so not going to hurt many people. Radeon has only two fixes, but the PLL fixes were a bit bigger, but required for a lot of scenarios, the fence fix is really urgent. vmwgfx: I've pulled in a dumb ioctl support patch that I was going to shove in later and cc stable, but we need it asap, its mainly to stop mesa growing a really ugly dependency in userspace to run stuff on vmware, and if I don't stick it in the kernel now, everyone will have to ship ugly userspace libs to workaround it. nouveau: single urgent fix found in F18 testing, causes X to not start properly when f18 plymouth is used i915: smattering of fixes and debug quieting gma500: single regression fix So as I said a bit large, but its fairly well scattered and its all stuff I'll be shipping in F18's 3.6 kernel." * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (26 commits) drm/nouveau: fix booting with plymouth + dumb support drm/radeon: make 64bit fences more robust v3 drm/radeon: rework pll selection (v3) drm: Drop the NV12M and YUV420M formats drm/exynos: remove DRM_FORMAT_NV12M from plane module drm/exynos: fix double call of drm_prime_(init/destroy)_file_private drm/exynos: add dummy support for dmabuf-mmap drm/exynos: Add missing braces around sizeof in exynos_mixer.c drm/exynos: Add missing braces around sizeof in exynos_hdmi.c drm/exynos: Make g2d_pm_ops static drm/exynos: Add dependency for G2D in Kconfig drm/exynos: fixed page align bug. drm/exynos: Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(.. [1] drm/exynos: Use devm_* functions in exynos_drm_g2d.c file drm/exynos: Use devm_kzalloc in exynos_drm_hdmi.c file drm/exynos: Use devm_kzalloc in exynos_drm_vidi.c file drm/exynos: Remove redundant check in exynos_drm_fimd.c file drm/exynos: Remove redundant check in exynos_hdmi.c file vmwgfx: add dumb ioctl support gma500: Fix regression on Oaktrail devices ...
2012-09-15Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds1-1/+3
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "This tree includes various fixes" Ingo really needs to improve on the whole "explain git pull" part. "Various fixes" indeed. * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/hwpb: Invoke __perf_event_disable() if interrupts are already disabled perf/x86: Enable Intel Cedarview Atom suppport perf_event: Switch to internal refcount, fix race with close() oprofile, s390: Fix uninitialized memory access when writing to oprofilefs perf/x86: Fix microcode revision check for SNB-PEBS
2012-09-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds4-2/+18
Pull networking fixes from David Miller: 1) Use after free and new device IDs in bluetooth from Andre Guedes, Yevgeniy Melnichuk, Gustavo Padovan, and Henrik Rydberg. 2) Fix crashes with short packet lengths and VLAN in pktgen, from Nishank Trivedi. 3) mISDN calls flush_work_sync() with locks held, fix from Karsten Keil. 4) Packet scheduler gred parameters are reported to userspace improperly scaled, and WRED idling is not performed correctly. All from David Ward. 5) Fix TCP socket refcount problem in ipv6, from Julian Anastasov. 6) ibmveth device has RX queue alignment requirements which are not being explicitly met resulting in sporadic failures, fix from Santiago Leon. 7) Netfilter needs to take care when interpreting sockets attached to socket buffers, they could be time-wait minisockets. Fix from Eric Dumazet. 8) sock_edemux() has the same issue as netfilter did in #7 above, fix from Eric Dumazet. 9) Avoid infinite loops in CBQ scheduler with some configurations, from Eric Dumazet. 10) Deal with "Reflection scan: an Off-Path Attack on TCP", from Jozsef Kadlecsik. 11) SCTP overcharges socket for TX packets, fix from Thomas Graf. 12) CODEL packet scheduler should not reset it's state every time it builds a new flow, fix from Eric Dumazet. 13) Fix memory leak in nl80211, from Wei Yongjun. 14) NETROM doesn't check skb_copy_datagram_iovec() return values, from Alan Cox. 15) l2tp ethernet was using sizeof(ETH_HLEN) instead of plain ETH_HLEN, oops. From Eric Dumazet. 16) Fix selection of ath9k chips on which PA linearization and AM2PM predistoration are used, from Felix Fietkau. 17) Flow steering settings in mlx4 driver need to be validated properly, from Hadar Hen Zion. 18) bnx2x doesn't show the correct link duplex setting, from Yaniv Rosner. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (75 commits) pktgen: fix crash with vlan and packet size less than 46 bnx2x: Add missing afex code bnx2x: fix registers dumped bnx2x: correct advertisement of pause capabilities bnx2x: display the correct duplex value bnx2x: prevent timeouts when using PFC bnx2x: fix stats copying logic bnx2x: Avoid sending multiple statistics queries net: qmi_wwan: call subdriver with control intf only net_sched: gred: actually perform idling in WRED mode net_sched: gred: fix qave reporting via netlink net_sched: gred: eliminate redundant DP prio comparisons net_sched: gred: correct comment about qavg calculation in RIO mode mISDN: Fix wrong usage of flush_work_sync while holding locks netfilter: log: Fix log-level processing net-sched: sch_cbq: avoid infinite loop net: qmi_wwan: fix Gobi device probing for un2430 net: fix net/core/sock.c build error ixp4xx_hss: fix build failure due to missing linux/module.h inclusion caif: move the dereference below the NULL test ...
2012-09-15Merge tag 'driver-core-3.6-rc6' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core fix from Greg Kroah-Hartman: "Here is one fix for 3.6-rc6 for the kobject.h file. It fixes a reported oops if CONFIG_HOTPLUG is disabled. It's been in the linux-next tree for a while now. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'driver-core-3.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: kobject: fix oops with "input0: bad kobj_uevent_env content in show_uevent()"
2012-09-13mISDN: Fix wrong usage of flush_work_sync while holding locksKarsten Keil1-1/+1
It is a bad idea to hold a spinlock and call flush_work_sync. Move the workqueue cleanup outside the spinlock and use cancel_work_sync, on closing the channel this seems to be the more correct function. Remove the never used and constant return value of mISDN_freebchannel. Signed-off-by: Karsten Keil <keil@b1-systems.de> Cc: <stable@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-13drm: Drop the NV12M and YUV420M formatsVille Syrjälä1-5/+1
The NV12M/YUV420M formats are identical to the NV12/YUV420 formats. So just remove these duplicated format names. This might look like breaking the ABI, but the code has never actually accepted these formats, so nothing can be using them. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2012-09-13Merge tag 'nfs-for-3.6-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds3-6/+4
Pull NFS client bugfixes from Trond Myklebust: - Final (hopefully) fix for the range checking code in NFSv4 getacl. This should fix the Oopses being seen when the acl size is close to PAGE_SIZE. - Fix a regression with the legacy binary mount code - Fix a regression in the readdir cookieverf initialisation - Fix an RPC over UDP regression - Ensure that we report all errors in the NFSv4 open code - Ensure that fsync() reports all relevant synchronisation errors. * tag 'nfs-for-3.6-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: NFS: fsync() must exit with an error if page writeback failed SUNRPC: Fix a UDP transport regression NFS: return error from decode_getfh in decode open NFSv4: Fix buffer overflow checking in __nfs4_get_acl_uncached NFSv4: Fix range checking in __nfs4_get_acl_uncached and __nfs4_proc_set_acl NFS: Fix a problem with the legacy binary mount code NFS: Fix the initialisation of the readdir 'cookieverf' array
2012-09-12i2c: pnx: Fix read transactions of >= 2 bytesRoland Stigge1-0/+1
On transactions with n>=2 bytes, the controller actually wrongly clocks in n+1 bytes. This is caused by the (wrong) assumption that RFE in the Status Register is 1 iff there is no byte already ordered (via a dummy TX byte). This lead to the implementation of synchronized byte ordering, e.g.: Dummy-TX - RX - Dummy-TX - RX - ... But since RFE actually stays high after some Dummy-TX, it rather looks like: Dummy-TX - Dummy-TX - RX - Dummy-TX - RX - (RX) The last RX byte is clocked in by the bus controller, but ignored by the kernel when filling the userspace buffer. This patch fixes the issue by asking for RX via Dummy-TX asynchronously. Introducing a separate counter for TX bytes. Signed-off-by: Roland Stigge <stigge@antcom.de> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-10regulator: core: Provide regmap get/set bypass operationsMark Brown1-0/+4
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-09-10regulator: core: Support bypass modeMark Brown3-0/+20
Many regulators support a bypass mode where they simply switch their input supply to the output. This is mainly used in low power retention states where power consumption is extremely low so higher voltage or less clean supplies can be used. Support this by providing ops for the drivers and a consumer API which allows the device to be put into bypass mode if all consumers enable it and the machine enables permission for this. This is not supported as a mode since the existing modes are rarely used due to fuzzy definition and mostly redundant with modern hardware which is able to respond promptly to load changes. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Reviewed-by: Graeme Gregory <gg@slimlogic.co.uk>
2012-09-10regulator: Fairchild fan53555 supportYunfan Zhang1-0/+60
This driver supports Fairchild FAN53555 Digitally Programmable TinyBuck Regulator. The FAN53555 is a step-down switching voltage regulator that delivers a digitally programmable output from an input voltage supply of 2.5V to 5.5V. The output voltage is programmed through an I2C interface. Signed-off-by: Yunfan Zhang <yfzhang@marvell.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-09-07Merge branch 'master' of ↵John W. Linville1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem John W. Linville says: ==================== Please pull these fixes intended for 3.6. There are more commits here than I would like -- I got a bit behind while I was stalking Steven Rostedt in San Diego last week... I'll slow it down after this! There are a couple of pulls here. One is from Johannes: "Please pull (according to the below information) to get a few fixes. * a fix to properly disconnect in the driver when authentication or association fails * a fix to prevent invalid information about mesh paths being reported to userspace * a memory leak fix in an nl80211 error path" The other comes via Gustavo: "A few updates for the 3.6 kernel. There are two btusb patches to add more supported devices through the new USB_VENDOR_AND_INTEFACE_INFO() macro and another one that add a new device id for a Sony Vaio laptop, one fix for a user-after-free and, finally, two patches from Vinicius to fix a issue in SMP pairing." Along with those... Arend van Spriel provides a fix for a use-after-free bug in brcmfmac. Daniel Drake avoids a hang by not trying to touch the libertas hardware duing suspend if it is already powered-down. Felix Fietkau provides a batch of ath9k fixes that adress some potential problems with power settings, as well as a fix to avoid a potential interrupt storm. Gertjan van Wingerde provides a register-width fix for rt2x00, and a rt2x00 fix to prevent incorrectly detecting the rfkill status. He also provides a device ID patch. Hante Meuleman gives us three brcmfmac fixes, one that properly initializes a command structure, one that fixes a race condition that could lose usb requests, and one that removes some log spam. Marc Kleine-Budde offers an rt2x00 fix for a voltage setting on some specific devices. Mohammed Shafi Shajakhan sent an ath9k fix to avoid a crash related to using timers that aren't allocated when 2 wire bluetooth coexistence hardware is in use. Sergei Poselenov changes rt2800usb to do some validity checking for received packets, avoiding crashes on an ARM Soc. Stone Piao gives us an mwifiex fix for an incorrectly set skb length value for a command buffer. All of these are localized to their specific drivers, and relatively small. The power-related patches from Felix are bigger than I would like, but I merged them in consideration of their isolation to ath9k and the sensitive nature of power settings in wireless devices. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07target: support zero allocation length in REQUEST SENSEPaolo Bonzini1-0/+1
Similar to INQUIRY and MODE SENSE, construct the sense data in a buffer and later copy it to the scatterlist. Do not do anything, but still clear a pending unit attention condition, if the allocation length is zero. However, SPC tells us that "If a REQUEST SENSE command is terminated with CHECK CONDITION status [and] the REQUEST SENSE command was received on an I_T nexus with a pending unit attention condition (i.e., before the device server reports CHECK CONDITION status), then the device server shall not clear the pending unit attention condition." Do the transport_kmap_data_sg early to detect this case. It also tells us "Device servers shall not adjust the additional sense length to reflect truncation if the allocation length is less than the sense data available", so do not do that! Note that the err variable is write-only. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-09-07net/mlx4_core: Add security check / enforcement for flow steering rules set ↵Hadar Hen Zion1-0/+11
for VMs Since VFs may be mapped to VMs which aren't trusted entities, flow steering rules attached through the wrapper on behalf of VFs must be checked to make sure that their L2 specification relate to MAC address assigned to that VF, and add L2 specification if its missing. Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07net/mlx4_core: Put Firmware flow steering structures in common header filesHadar Hen Zion1-0/+2
To allow for usage of the flow steering Firmware structures in more locations over the driver, such as the resource tracker, move them from mcg.c to common header files. Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07SUNRPC: Fix a UDP transport regressionTrond Myklebust1-0/+3
Commit 43cedbf0e8dfb9c5610eb7985d5f21263e313802 (SUNRPC: Ensure that we grab the XPRT_LOCK before calling xprt_alloc_slot) is causing hangs in the case of NFS over UDP mounts. Since neither the UDP or the RDMA transport mechanism use dynamic slot allocation, we can skip grabbing the socket lock for those transports. Add a new rpc_xprt_op to allow switching between the TCP and UDP/RDMA case. Note that the NFSv4.1 back channel assigns the slot directly through rpc_run_bc_task, so we can ignore that case. Reported-by: Dick Streefland <dick.streefland@altium.nl> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@vger.kernel.org [>= 3.1]
2012-09-06kobject: fix oops with "input0: bad kobj_uevent_env content in show_uevent()"Bjørn Mork1-1/+1
Fengguang Wu <fengguang.wu@intel.com> writes: > After the __devinit* removal series, I can still get kernel panic in > show_uevent(). So there are more sources of bug.. > > Debug patch: > > @@ -343,8 +343,11 @@ static ssize_t show_uevent(struct device > goto out; > > /* copy keys to file */ > - for (i = 0; i < env->envp_idx; i++) > + dev_err(dev, "uevent %d env[%d]: %s/.../%s\n", env->buflen, env->envp_idx, top_kobj->name, dev->kobj.name); > + for (i = 0; i < env->envp_idx; i++) { > + printk(KERN_ERR "uevent %d env[%d]: %s\n", (int)count, i, env->envp[i]); > count += sprintf(&buf[count], "%s\n", env->envp[i]); > + } > > Oops message, the env[] is again not properly initilized: > > [ 44.068623] input input0: uevent 61 env[805306368]: input0/.../input0 > [ 44.069552] uevent 0 env[0]: (null) This is a completely different CONFIG_HOTPLUG problem, only demonstrating another reason why CONFIG_HOTPLUG should go away. I had a hard time trying to disable it anyway ;-) The problem this time is lots of code assuming that a call to add_uevent_var() will guarantee that env->buflen > 0. This is not true if CONFIG_HOTPLUG is unset. So things like this end up overwriting env->envp_idx because the array index is -1: if (add_uevent_var(env, "MODALIAS=")) return -ENOMEM; len = input_print_modalias(&env->buf[env->buflen - 1], sizeof(env->buf) - env->buflen, dev, 0); Don't know what the best action is, given that there seem to be a *lot* of this around the kernel. This patch "fixes" the problem for me, but I don't know if it can be considered an appropriate fix. [ It is the correct fix for now, for 3.7 forcing CONFIG_HOTPLUG to always be on is the longterm fix, but it's too late for 3.6 and older kernels to resolve this that way - gregkh ] Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Tested-by: Fengguang Wu <fengguang.wu@intel.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-06Merge tag 'hwmon-for-linus' of ↵Linus Torvalds1-2/+10
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull a hwmon fix from Guenter Roeck: "One patch, fixing DIV_ROUND_CLOSEST to support negative dividends. While the changes are not in the drivers/hwmon directory, the problem primarily affects hwmon drivers, and it makes sense to push the patch through the hwmon tree." * tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: linux/kernel.h: Fix DIV_ROUND_CLOSEST to support negative dividends
2012-09-06NFSv4: Fix buffer overflow checking in __nfs4_get_acl_uncachedTrond Myklebust1-1/+1
Pass the checks made by decode_getacl back to __nfs4_get_acl_uncached so that it knows if the acl has been truncated. The current overflow checking is broken, resulting in Oopses on user-triggered nfs4_getfacl calls, and is opaque to the point where several attempts at fixing it have failed. This patch tries to clean up the code in addition to fixing the Oopses by ensuring that the overflow checks are performed in a single place (decode_getacl). If the overflow check failed, we will still be able to report the acl length, but at least we will no longer attempt to cache the acl or copy the truncated contents to user space. Reported-by: Sachin Prabhu <sprabhu@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Tested-by: Sachin Prabhu <sprabhu@redhat.com>
2012-09-06Merge tag 'mmc-fixes-for-3.6-rc5' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc Pull MMC fixes from Chris Ball: - a firmware bug on several Samsung MoviNAND eMMC models causes permanent corruption on the device when secure erase and secure trim requests are made, so we disable those requests on these eMMC devices. - atmel-mci: fix a hang with some SD cards by waiting for not-busy flag. - dw_mmc: low-power mode breaks SDIO interrupts; fix PIO error handling; fix handling of error interrupts. - mxs-mmc: fix deadlocks; fix compile error due to dma.h arch change. - omap: fix broken PIO mode causing memory corruption. - sdhci-esdhc: fix card detection. * tag 'mmc-fixes-for-3.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: mmc: omap: fix broken PIO mode mmc: card: Skip secure erase on MoviNAND; causes unrecoverable corruption. mmc: dw_mmc: Disable low power mode if SDIO interrupts are used mmc: dw_mmc: fix error handling in PIO mode mmc: dw_mmc: correct mishandling error interrupt mmc: dw_mmc: amend using error interrupt status mmc: atmel-mci: not busy flag has also to be used for read operations mmc: sdhci-esdhc: break out early if clock is 0 mmc: mxs-mmc: fix deadlock caused by recursion loop mmc: mxs-mmc: fix deadlock in SDIO IRQ case mmc: bfin_sdh: fix dma_desc_array build error
2012-09-06target: fix use-after-free with PSCSI sense dataPaolo Bonzini1-1/+3
The pointer to the sense buffer is fetched by transport_get_sense_data, but this is called by target_complete_ok_work long after pscsi_req_done has freed the struct that contains it. Pass instead the fabric's sense buffer to transport_complete, and copy the data to it directly in transport_complete. Setting SCF_TRANSPORT_TASK_SENSE also becomes a duty of transport_complete. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-09-06regulator: tps6586x: add support for SYS railLaxman Dewangan1-0/+1
Device have SYS rail which is always ON. It is system power bus. LDO5 and LDO_RTC get powered through this rail internally. Add support for this rail and make the LDO5/LDO_RTC supply by it. Update document accordingly. [swarren: Instantiate the sys regulator from board-harmony-power.c to avoid regression.] Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-09-04NFS: Fix the initialisation of the readdir 'cookieverf' arrayTrond Myklebust1-5/+0
When the NFS_COOKIEVERF helper macro was converted into a static inline function in commit 99fadcd764 (nfs: convert NFS_*(inode) helpers to static inline), we broke the initialisation of the readdir cookies, since that depended on doing a memset with an argument of 'sizeof(NFS_COOKIEVERF(inode))' which therefore changed from sizeof(be32 cookieverf[2]) to sizeof(be32 *). At this point, NFS_COOKIEVERF seems to be more of an obfuscation than a helper, so the best thing would be to just get rid of it. Also see: https://bugzilla.kernel.org/show_bug.cgi?id=46881 Reported-by: Andi Kleen <andi@firstfloor.org> Reported-by: David Binderman <dcb314@hotmail.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@vger.kernel.org
2012-09-04xfrm: Workaround incompatibility of ESN and async cryptoSteffen Klassert1-0/+3
ESN for esp is defined in RFC 4303. This RFC assumes that the sequence number counters are always up to date. However, this is not true if an async crypto algorithm is employed. If the sequence number counters are not up to date on sequence number check, we may incorrectly update the upper 32 bit of the sequence number. This leads to a DOS. We workaround this by comparing the upper sequence number, (used for authentication) with the upper sequence number computed after the async processing. We drop the packet if these numbers are different. To do this, we introduce a recheck function that does this check in the ESN case. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-04mmc: card: Skip secure erase on MoviNAND; causes unrecoverable corruption.Ian Chen1-0/+1
For several MoviNAND eMMC parts, there are known issues with secure erase and secure trim. For these specific MoviNAND devices, we skip these operations. Specifically, there is a bug in the eMMC firmware that causes unrecoverable corruption when the MMC is erased with MMC_CAP_ERASE enabled. References: http://forum.xda-developers.com/showthread.php?t=1644364 https://plus.google.com/111398485184813224730/posts/21pTYfTsCkB#111398485184813224730/posts/21pTYfTsCkB Signed-off-by: Ian Chen <ian.cy.chen@samsung.com> Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Cc: stable <stable@vger.kernel.org> [3.0+] Signed-off-by: Chris Ball <cjb@laptop.org>
2012-09-04perf/hwpb: Invoke __perf_event_disable() if interrupts are already disabledK.Prasad1-0/+2
While debugging a warning message on PowerPC while using hardware breakpoints, it was discovered that when perf_event_disable is invoked through hw_breakpoint_handler function with interrupts disabled, a subsequent IPI in the code path would trigger a WARN_ON_ONCE message in smp_call_function_single function. This patch calls __perf_event_disable() when interrupts are already disabled, instead of perf_event_disable(). Reported-by: Edjunior Barbosa Machado <emachado@linux.vnet.ibm.com> Signed-off-by: K.Prasad <Prasad.Krishnan@gmail.com> [naveen.n.rao@linux.vnet.ibm.com: v3: Check to make sure we target current task] Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20120802081635.5811.17737.stgit@localhost.localdomain [ Fixed build error on MIPS. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-09-04perf_event: Switch to internal refcount, fix race with close()Al Viro1-1/+1
Don't mess with file refcounts (or keep a reference to file, for that matter) in perf_event. Use explicit refcount of its own instead. Deal with the race between the final reference to event going away and new children getting created for it by use of atomic_long_inc_not_zero() in inherit_event(); just have the latter free what it had allocated and return NULL, that works out just fine (children of siblings of something doomed are created as singletons, same as if the child of leader had been created and immediately killed). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Cc: stable@kernel.org Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20120820135925.GG23464@ZenIV.linux.org.uk Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-09-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2-1/+2
Pull networking fixes from David Miller: 1) NLA_PUT* --> nla_put_* conversion got one case wrong in nfnetlink_log, fix from Patrick McHardy. 2) Missed error return check in ipw2100 driver, from Julia Lawall. 3) PMTU updates in ipv4 were setting the expiry time incorrectly, fix from Eric Dumazet. 4) SFC driver erroneously reversed src and dst when reporting filters via ethtool. 5) Memory leak in CAN protocol and wrong setting of IRQF_SHARED in sja1000 can platform driver, from Alexey Khoroshilov and Sven Schmitt. 6) Fix multicast traffic scaling regression in ipv4_dst_destroy, only take the lock when we really need to. From Eric Dumazet. 7) Fix non-root process spoofing in netlink, from Pablo Neira Ayuso. 8) CWND reduction in TCP is done incorrectly during non-SACK recovery, fix from Yuchung Cheng. 9) Revert netpoll change, and fix what was actually a driver specific problem. From Amerigo Wang. This should cure bootup hangs with netconsole some people reported. 10) Fix xen-netfront invoking __skb_fill_page_desc() with a NULL page pointer. From Ian Campbell. 11) SIP NAT fix for expectiontation creation, from Pablo Neira Ayuso. 12) __ip_rt_update_pmtu() needs RCU locking, from Eric Dumazet. 13) Fix usbnet deadlock on resume, can't use GFP_KERNEL in this situation. From Oliver Neukum. 14) The davinci ethernet driver triggers an OOPS on removal because it frees an MDIO object before unregistering it. Fix from Bin Liu. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (41 commits) net: qmi_wwan: add several new Gobi devices fddi: 64 bit bug in smt_add_para() net: ethernet: fix kernel OOPS when remove davinci_mdio module net/xfrm/xfrm_state.c: fix error return code net: ipv6: fix error return code net: qmi_wwan: new device: Foxconn/Novatel E396 usbnet: fix deadlock in resume cs89x0 : packet reception not working netfilter: nf_conntrack: fix racy timer handling with reliable events bnx2x: Correct the ndo_poll_controller call bnx2x: Move netif_napi_add to the open call ipv4: must use rcu protection while calling fib_lookup bnx2x: fix 57840_MF pci id net: ipv4: ipmr_expire_timer causes crash when removing net namespace e1000e: DoS while TSO enabled caused by link partner with small MSS l2tp: avoid to use synchronize_rcu in tunnel free function gianfar: fix default tx vlan offload feature flag netfilter: nf_nat_sip: fix incorrect handling of EBUSY for RTCP expectation xen-netfront: use __pskb_pull_tail to ensure linear area is big enough on RX netfilter: nfnetlink_log: fix error return code in init path ...
2012-09-02linux/kernel.h: Fix DIV_ROUND_CLOSEST to support negative dividendsGuenter Roeck1-2/+10
DIV_ROUND_CLOSEST returns a bad result for negative dividends: DIV_ROUND_CLOSEST(-2, 2) = 0 Most of the time this does not matter. However, in the hardware monitoring subsystem, DIV_ROUND_CLOSEST is sometimes used on integers which can be negative (such as temperatures). Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Jean Delvare <khali@linux-fr.org>
2012-09-01time: Move ktime_t overflow checking into timespec_valid_strictJohn Stultz1-0/+7
Andreas Bombe reported that the added ktime_t overflow checking added to timespec_valid in commit 4e8b14526ca7 ("time: Improve sanity checking of timekeeping inputs") was causing problems with X.org because it caused timeouts larger then KTIME_T to be invalid. Previously, these large timeouts would be clamped to KTIME_MAX and would never expire, which is valid. This patch splits the ktime_t overflow checking into a new timespec_valid_strict function, and converts the timekeeping codes internal checking to use this more strict function. Reported-and-tested-by: Andreas Bombe <aeb@debian.org> Cc: Zhouping Liu <zliu@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-08-31regulator: Clarify documentation for regmap in the configMark Brown1-1/+2
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-31Merge branch 'master' of git://1984.lsi.us.es/nfDavid S. Miller1-0/+1
2012-08-31netfilter: nf_conntrack: fix racy timer handling with reliable eventsPablo Neira Ayuso1-0/+1
Existing code assumes that del_timer returns true for alive conntrack entries. However, this is not true if reliable events are enabled. In that case, del_timer may return true for entries that were just inserted in the dying list. Note that packets / ctnetlink may hold references to conntrack entries that were just inserted to such list. This patch fixes the issue by adding an independent timer for event delivery. This increases the size of the ecache extension. Still we can revisit this later and use variable size extensions to allocate this area on demand. Tested-by: Oliver Smith <olipro@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-08-30bnx2x: fix 57840_MF pci idYuval Mintz1-1/+1
Commit c3def943c7117d42caaed3478731ea7c3c87190e have added support for new pci ids of the 57840 board, while failing to change the obsolete value in 'pci_ids.h'. This patch does so, allowing the probe of such devices. Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-30Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds2-3/+5
Pull drm fixes from Dave Airlie: "A bunch of scattered fixes ati/intel/nouveau, couple of core ones, nothing too shocking or different." * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm: Add EDID_QUIRK_FORCE_REDUCED_BLANKING for ASUS VW222S gma500: Consider CRTC initially active. drm/radeon: fix dig encoder selection on DCE61 drm/radeon: fix double free in radeon_gpu_reset drm/radeon: force dma32 to fix regression rs4xx,rs6xx,rs740 drm/radeon: rework panel mode setup drm/radeon/atom: powergating fixes for DCE6 drm/radeon/atom: rework DIG modesetting on DCE3+ drm/radeon: don't disable plls that are in use by other crtcs drm/radeon: add proper checking of RESOLVE_BOX command for r600-r700 drm/radeon: initialize tracked CS state drm/radeon: fix reading CB_COLORn_MASK from the CS drm/nvc0/copy: check PUNITS to determine which copy engines are disabled i915: Quirk no_lvds on Gigabyte GA-D525TUD ITX motherboard drm/i915: Use the correct size of the GTT for placing the per-process entries drm: Check for invalid cursor flags drm: Initialize object type when using DRM_MODE() macro drm/i915: fix color order for BGR formats on IVB drm/i915: fix wrong order of parameters in port checking functions
2012-08-28regulator: Update comment for set_current_limit callback of struct regulator_opsAxel Lin1-0/+1
The regulators should be tending to the maximum in the available range and consumers should specify the widest range possible. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-28regulator: max77686: initialize of_node param for regulator registerAxel Lin1-0/+1
Initialize config.of_node for regulator before registering. This is needed for DT based regulator support. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-28ASoC: atmel-ssc: include linux/io.h for raw ioJoachim Eastwood1-0/+1
Include linux/io.h for raw io operations in atmel-scc header. This fixes the following build error: CC [M] sound/soc/atmel/atmel_ssc_dai.o sound/soc/atmel/atmel_ssc_dai.c: In function 'atmel_ssc_interrupt': sound/soc/atmel/atmel_ssc_dai.c:171: error: implicit declaration of function '__raw_readl' sound/soc/atmel/atmel_ssc_dai.c: In function 'atmel_ssc_shutdown': sound/soc/atmel/atmel_ssc_dai.c:249: error: implicit declaration of function '__raw_writel' Signed-off-by: Joachim Eastwood <joachim.eastwood@jotron.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-27Bluetooth: Change signature of smp_conn_security()Vinicius Costa Gomes1-1/+1
To make it clear that it may be called from contexts that may not have any knowledge of L2CAP, we change the connection parameter, to receive a hci_conn. This also makes it clear that it is checking the security of the link. Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-08-26Merge tag 'fixes-3.6-rc3' of ↵Linus Torvalds2-0/+6
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull arm-soc fixes from Arnd Bergmann: "Bug fixes for various ARM platforms. About half of these are for OMAP and submitted before but did not make it into v3.6-rc2." * tag 'fixes-3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits) ARM: ux500: don't select LEDS_GPIO for snowball ARM: imx: build i.MX6 functions only when needed ARM: imx: select CPU_FREQ_TABLE when needed ARM: imx: fix ksz9021rn_phy_fixup ARM: imx: build pm-imx5 code only when PM is enabled ARM: omap: allow building omap44xx without SMP ARM: dts: imx51-babbage: fix esdhc cd/wp properties ARM: imx6: spin the cpu until hardware takes it down ARM: ux500: Ensure probing of Audio devices when Device Tree is enabled ARM: ux500: Fix merge error, no matching driver name for 'snd_soc_u8500' ARM i.MX6q: Add virtual 1/3.5 dividers in the LDB clock path ARM: Kirkwood: fix Makefile.boot ARM: Kirkwood: Fix iconnect leds ARM: Orion: Set eth packet size csum offload limit ARM: mv78xx0: fix win_cfg_base prototype ARM: OMAP: dmtimers: Fix locking issue in omap_dm_timer_request*() ARM: mmp: fix potential NULL dereference ARM: OMAP4: Register the OPP table only for 4430 device cpufreq: OMAP: Handle missing frequency table on SMP systems ARM: OMAP4: sleep: Save the complete used register stack frame ...
2012-08-26Merge tag 'stable/for-linus-3.6-rc3-tag' of ↵Linus Torvalds1-2/+0
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen Pull three xen bug-fixes from Konrad Rzeszutek Wilk: - Revert the kexec fix which caused on non-kexec shutdowns a race. - Reuse existing P2M leafs - instead of requiring to allocate a large area of bootup virtual address estate. - Fix a one-off error when adding PFNs for balloon pages. * tag 'stable/for-linus-3.6-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen/setup: Fix one-off error when adding for-balloon PFNs to the P2M. xen/p2m: Reuse existing P2M leafs if they are filled with 1:1 PFNs or INVALID. Revert "xen PVonHVM: move shared_info to MMIO before kexec"
2012-08-25Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds1-1/+13
Pull block-related fixes from Jens Axboe: - Improvements to the buffered and direct write IO plugging from Fengguang. - Abstract out the mapping of a bio in a request, and use that to provide a blk_bio_map_sg() helper. Useful for mapping just a bio instead of a full request. - Regression fix from Hugh, fixing up a patch that went into the previous release cycle (and marked stable, too) attempting to prevent a loop in __getblk_slow(). - Updates to discard requests, fixing up the sizing and how we align them. Also a change to disallow merging of discard requests, since that doesn't really work properly yet. - A few drbd fixes. - Documentation updates. * 'for-linus' of git://git.kernel.dk/linux-block: block: replace __getblk_slow misfix by grow_dev_page fix drbd: Write all pages of the bitmap after an online resize drbd: Finish requests that completed while IO was frozen drbd: fix drbd wire compatibility for empty flushes Documentation: update tunable options in block/cfq-iosched.txt Documentation: update tunable options in block/cfq-iosched.txt Documentation: update missing index files in block/00-INDEX block: move down direct IO plugging block: remove plugging at buffered write time block: disable discard request merge temporarily bio: Fix potential memory leak in bio_find_or_create_slab() block: Don't use static to define "void *p" in show_partition_start() block: Add blk_bio_map_sg() helper block: Introduce __blk_segment_map_sg() helper fs/block-dev.c:fix performance regression in O_DIRECT writes to md block devices block: split discard into aligned requests block: reorganize rounding of max_discard_sectors