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* kexec, Kconfig: spell "architecture" properlyBorislav Petkov2015-01-262-2/+2
| | | | | | | | Grepping for "archicture" showed it actually twice! Most unusual spelling error, very interesting. :) Signed-off-by: Borislav Petkov <bp@suse.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* mm: fix cleancache debugfs directory pathMarcin Jabrzyk2015-01-202-2/+2
| | | | | | | | Minor fixes for cleancache about wrong debugfs paths in documentation and code comment. Signed-off-by: Marcin Jabrzyk <m.jabrzyk@samsung.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* blackfin: mach-common: ints-priority: remove unused functionRickard Strandqvist2015-01-201-8/+0
| | | | | | | | | | Remove the function bfin_sec_resume() that is not used anywhere. This was partially found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* doubletalk: probe failure causes OOPSAlan Cox2015-01-201-3/+4
| | | | | | | | | | The code bothers to probe for the device, but on failing to find it proceeds to try and release a NULL resource, thereby ruining it's prior good behaviour Resolves-Bug: https://bugzilla.kernel.org/show_bug.cgi?id=88581 Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* ARM: cache-l2x0.c: Make it clear that cache-l2x0 handles L310 cache controllerPavel Machek2015-01-201-1/+1
| | | | | | | | It is not clear from the filename, and comment at the begining adds to the confusion by not listing L310. Fix it. Signed-off-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* msdos_fs.h: fix 'fields' in commentJeremiah Mahler2015-01-201-2/+2
| | | | | Signed-off-by: Jeremiah Mahler <jmmahler@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* scsi: aic7xxx: fix commentGeert Uytterhoeven2015-01-201-1/+1
| | | | | | | Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Hannes Reinecke <hare@suse.de> Cc: linux-scsi@vger.kernel.org Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* ARM: l2c: fix commentGeert Uytterhoeven2015-01-201-1/+1
| | | | | | | Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Russell King <linux@arm.linux.org.uk> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* ibmraid: fix writeable attribute with no store methodAlan2015-01-201-1/+1
| | | | | | | | | | | | | https://bugzilla.kernel.org/show_bug.cgi?id=81311 [ 0.603157] WARNING: at drivers/base/core.c:601 device_create_file+0x8d/0xa0() [ 0.603158] Attribute adapter_id: write permission without 'store' [ 0.603159] Modules linked in: i915(+) i2c_algo_bit drm_kms_helper drm mpt2sas(+) pmcraid(+) raid_class scsi_transport_sas i2c_core video Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* dynamic_debug: fix commentMasatake YAMATO2015-01-021-1/+1
| | | | | Signed-off-by: Masatake YAMATO <yamato@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* doc: usbmon: fix spelling s/unpriviledged/unprivileged/Jeremiah Mahler2015-01-021-1/+1
| | | | | Signed-off-by: Jeremiah Mahler <jmmahler@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* x86: init_mem_mapping(): use capital BIOS in commentPavel Machek2015-01-021-1/+1
| | | | | | | | Use capital BIOS in comment. Its cleaner, and allows diference between BIOS and BIOs. Signed-off-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* intel_ips: fix a type in error messageMasatake YAMATO2014-11-201-1/+1
| | | | | Signed-off-by: Masatake YAMATO <yamato@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* cpufreq: cpufreq-dt: Move newline to end of error messageGeert Uytterhoeven2014-11-201-1/+1
| | | | | | | | Currently the error message is needlessly splitted across two lines. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* ps3rom: fix error return codeJulia Lawall2014-11-201-0/+1
| | | | | | | | | Set the return variable to an error code as done elsewhere in the function. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-By: Geoff Levand <geoff@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* treewide: fix typo in printk and KconfigMasanari Iida2014-11-2015-19/+19
| | | | | | | | | This patch fix spelling typo in printk and Kconfig within various part of kernel sources. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* ARM: dts: bcm63138: change "interupts" to "interrupts"Radek Dostal2014-11-201-1/+1
| | | | | | | | | all other nodes in bcm63138.dtsi use "interrupts", this had to be just a typo which never got noticed, even it may have quite some consequences. Signed-off-by: Radek Dostal <radek.dostal@streamunlimited.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* Replace mentions of "list_struct" to "list_head"Andrey Utkin2014-11-207-43/+43
| | | | | | | | | | | There's no such thing as "list_struct". Signed-off-by: Andrey Utkin <andrey.krieger.utkin@gmail.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* Merge Linus' tree to be be to apply submitted patches to newer code thanJiri Kosina2014-11-2012063-388969/+591958
|\ | | | | | | current trivial.git base
| * Linux 3.18-rc5v3.18-rc5Linus Torvalds2014-11-171-1/+1
| |
| * Merge tag 'armsoc-for-rc5' of ↵Linus Torvalds2014-11-1714-20/+68
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "Another small set of fixes: - some DT compatible typo fixes - irq setup fix dealing with irq storms on orion - i2c quirk generalization for mvebu - a handful of smaller fixes for OMAP - a couple of added file patterns for OMAP entries in MAINTAINERS" * tag 'armsoc-for-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: at91/dt: Fix sama5d3x typos pinctrl: dra: dt-bindings: Fix output pull up/down MAINTAINERS: Update entry for omap related .dts files to cover new SoCs MAINTAINERS: add more files under OMAP SUPPORT ARM: dts: AM437x-SK-EVM: Fix DCDC3 voltage ARM: dts: AM437x-GP-EVM: Fix DCDC3 voltage ARM: dts: AM43x-EPOS-EVM: Fix DCDC3 voltage ARM: dts: am335x-evm: Fix 5th NAND partition's name ARM: orion: Fix for certain sequence of request_irq can cause irq storm ARM: mvebu: armada xp: Generalize use of i2c quirk
| | * ARM: at91/dt: Fix sama5d3x typosPeter Rosin2014-11-176-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some DT files had a typo with a missing "5" in sama5d3x first compatible string. Signed-off-by: Peter Rosin <peda@axentia.se> [nicolas.ferre@atmel.com: modify commit log] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Olof Johansson <olof@lixom.net>
| | * Merge tag 'omap-fixes-against-v3.18-rc4' of ↵Olof Johansson2014-11-176-9/+29
| | |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes Merge "omap fixes against v3.18-rc4" from Tony Lindgren: Few omap fixes for hangs and wrong pinctrl defines, and update MAINTAINERS file to avoid missing PMIC and SoC related patches: - Fix random hangs on am437x because of incorrect default value for the DDR regulator - Fix wrong partition name for NAND on am335x-evm - Fix wrong pinctrl defines for dra7xx - Update maintainers entries for PMICs and SoCs * tag 'omap-fixes-against-v3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: pinctrl: dra: dt-bindings: Fix output pull up/down MAINTAINERS: Update entry for omap related .dts files to cover new SoCs MAINTAINERS: add more files under OMAP SUPPORT ARM: dts: AM437x-SK-EVM: Fix DCDC3 voltage ARM: dts: AM437x-GP-EVM: Fix DCDC3 voltage ARM: dts: AM43x-EPOS-EVM: Fix DCDC3 voltage ARM: dts: am335x-evm: Fix 5th NAND partition's name Signed-off-by: Olof Johansson <olof@lixom.net>
| | | * pinctrl: dra: dt-bindings: Fix output pull up/downRoger Quadros2014-11-101-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For PIN_OUTPUT_PULLUP and PIN_OUTPUT_PULLDOWN we must not set the PULL_DIS bit which disables the PULLs. PULL_ENA is a 0 and using it in an OR operation is a NOP, so don't use it in the PIN_OUTPUT_PULLUP/DOWN macros. Fixes: 23d9cec07c58 ("pinctrl: dra: dt-bindings: Fix pull enable/disable") Signed-off-by: Roger Quadros <rogerq@ti.com> Acked-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | | * MAINTAINERS: Update entry for omap related .dts files to cover new SoCsNishanth Menon2014-11-101-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DRA7(including AM5x) and AM47x series are handled under OMAP umbrella. These SoC support and dts have been added since 3.14 kernel and Pull requests for these have come in from OMAP till date. So just ensure that get_maintainers can pick up this list as well. Cc: linux-omap@vger.kernel.org Cc: devicetree@vger.kernel.org Signed-off-by: Nishanth Menon <nm@ti.com> Acked-by: Benoît Cousson <bcousson@baylibre.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | | * MAINTAINERS: add more files under OMAP SUPPORTFelipe Balbi2014-11-101-0/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These files are very important to the healt of the OMAP architecture, specially when it comes to PM support which currently we have working for at least OMAP3 and we'd like to know about any changes being made to our PMICs and IRQ controllers. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | | * ARM: dts: AM437x-SK-EVM: Fix DCDC3 voltageKeerthy2014-11-101-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DCDC3 supplies voltage to DDR. Fix DCDC3 volatge to 1.5V which is the reset value. Programming to a non-reset value while executing from DDR will result in random hangs. Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | | * ARM: dts: AM437x-GP-EVM: Fix DCDC3 voltageKeerthy2014-11-101-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DCDC3 supplies voltage to DDR. Fix DCDC3 volatge to 1.5V which is the reset value. Programming to a non-reset value while executing from DDR will result in random hangs. Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | | * ARM: dts: AM43x-EPOS-EVM: Fix DCDC3 voltageKeerthy2014-11-101-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DCDC3 supplies voltage to DDR. Fix DCDC3 volatge to 1.5V which is the reset value. Programming to a non-reset value while executing from DDR will result in random hangs. Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | | * ARM: dts: am335x-evm: Fix 5th NAND partition's nameRoger Quadros2014-11-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 5th NAND partition should be named "NAND.u-boot-spl-os" instead of "NAND.u-boot-spl". This is to be consistent with other TI boards as well as u-boot. Fixes: 91994facdd2d ("ARM: dts: am335x-evm: NAND: update MTD partition table") Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | Merge tag 'mvebu-fixes-3.18' of git://git.infradead.org/linux-mvebu into fixesOlof Johansson2014-11-172-5/+33
| | |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge "mvebu fixes for v3.18" from Jason Cooper: - Armada XP - Generalize i2c quirk - orion - Fix irq storm caused by specific sequence of request_irq * tag 'mvebu-fixes-3.18' of git://git.infradead.org/linux-mvebu: ARM: orion: Fix for certain sequence of request_irq can cause irq storm ARM: mvebu: armada xp: Generalize use of i2c quirk
| | | * | ARM: orion: Fix for certain sequence of request_irq can cause irq stormEvgeniy Dushistov2014-11-011-4/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The problem is that hardware handled by arm/plat-orion/gpio.c, require ack for edge irq, and no ack for level irq. The code handle this issue, by two "struct irq_chip_type" per one "struct irq_chip_generic". For one "struct irq_chip_generic" irq_ack pointer is setted, for another it is NULL. But we have only one mask_cache per two "struct irq_chip_type". So if we 1)unmask interrupt A for "edge type" trigger, 2)unmask interrupt B for "level type" trigger, 3)unmask interrupt C for "edge type", we, because of usage of generic irq_gc_mask_clr_bit/irq_gc_mask_set_bit, have hardware configured to trigger interrupt B on "edge type", because of shared mask_cache. But kernel think that B is "level type", so when interrupt B occur via "edge" reason, we don't ack it, and B triggered again and again. Signed-off-by: Evgeniy A. Dushistov <dushistov@mail.ru> Link: https://lkml.kernel.org/r/20140726155659.GA22977@fifteen Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| | | * | ARM: mvebu: armada xp: Generalize use of i2c quirkAndrew Lunn2014-11-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A second product has come to light which makes use of the A0 stepping of the Armada XP SoC. A0 stepping has a hardware bug in the i2c core meaning that hardware offload does not work, resulting in the kernel failing to boot. The quirk detects that the kernel is running on an A0 stepping SoC and disables the use of hardware offload. Currently the quirk is only enabled for PlatHome Openblocks AX3. The AX3 has been produced with both A0 and B0 stepping SoCs. The second product is the Lenovo Iomega IX4-300d. It seems likely that this device will also swap from A0 to B0 SoC sometime during its life. If there are two products using A0, it seems likely there are more products with A0. Also, since the number of A0 SoCs is limited, these products are also likely to transition to B0. Hence detecting at run time is the safest option. So enable the quirk for all Armada XP boards. Tested on an AX3 with A0 stepping. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: stable@vger.kernel.org # v3.12+ Fixes: 930ab3d403ae: ("i2c: mv64xxx: Add I2C Transaction Generator support") Link: https://lkml.kernel.org/r/1406395238-29758-2-git-send-email-andrew@lunn.ch Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| * | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds2014-11-176-20/+43
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull sparc fixes from David Miller: 1) Fix NULL oops in Schizo PCI controller error handler. 2) Fix race between xchg and other operations on 32-bit sparc, from Andreas Larsson. 3) swab*() helpers need a dummy memory input operand to show data flow on 64-bit sparc. 4) Fix RCU warnings due to missing irq_{enter,exit}() around generic_smp_call_function*() calls. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc64: Fix constraints on swab helpers. sparc32: Implement xchg and atomic_xchg using ATOMIC_HASH locks sparc64: Do irq_{enter,exit}() around generic_smp_call_function*(). sparc64: Fix crashes in schizo_pcierr_intr_other().
| | * | | | sparc64: Fix constraints on swab helpers.David S. Miller2014-11-161-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We are reading the memory location, so we have to have a memory constraint in there purely for the sake of showing the data flow to the compiler. Reported-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | | | sparc32: Implement xchg and atomic_xchg using ATOMIC_HASH locksAndreas Larsson2014-11-073-11/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Atomicity between xchg and cmpxchg cannot be guaranteed when xchg is implemented with a swap and cmpxchg is implemented with locks. Without this, e.g. mcs_spin_lock and mcs_spin_unlock are broken. Signed-off-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | | | sparc64: Do irq_{enter,exit}() around generic_smp_call_function*().David S. Miller2014-11-071-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Otherwise rcu_irq_{enter,exit}() do not happen and we get dumps like: ==================== [ 188.275021] =============================== [ 188.309351] [ INFO: suspicious RCU usage. ] [ 188.343737] 3.18.0-rc3-00068-g20f3963-dirty #54 Not tainted [ 188.394786] ------------------------------- [ 188.429170] include/linux/rcupdate.h:883 rcu_read_lock() used illegally while idle! [ 188.505235] other info that might help us debug this: [ 188.554230] RCU used illegally from idle CPU! rcu_scheduler_active = 1, debug_locks = 0 [ 188.637587] RCU used illegally from extended quiescent state! [ 188.690684] 3 locks held by swapper/7/0: [ 188.721932] #0: (&x->wait#11){......}, at: [<0000000000495de8>] complete+0x8/0x60 [ 188.797994] #1: (&p->pi_lock){-.-.-.}, at: [<000000000048510c>] try_to_wake_up+0xc/0x400 [ 188.881343] #2: (rcu_read_lock){......}, at: [<000000000048a910>] select_task_rq_fair+0x90/0xb40 [ 188.973043]stack backtrace: [ 188.993879] CPU: 7 PID: 0 Comm: swapper/7 Not tainted 3.18.0-rc3-00068-g20f3963-dirty #54 [ 189.076187] Call Trace: [ 189.089719] [0000000000499360] lockdep_rcu_suspicious+0xe0/0x100 [ 189.147035] [000000000048a99c] select_task_rq_fair+0x11c/0xb40 [ 189.202253] [00000000004852d8] try_to_wake_up+0x1d8/0x400 [ 189.252258] [000000000048554c] default_wake_function+0xc/0x20 [ 189.306435] [0000000000495554] __wake_up_common+0x34/0x80 [ 189.356448] [00000000004955b4] __wake_up_locked+0x14/0x40 [ 189.406456] [0000000000495e08] complete+0x28/0x60 [ 189.448142] [0000000000636e28] blk_end_sync_rq+0x8/0x20 [ 189.496057] [0000000000639898] __blk_mq_end_request+0x18/0x60 [ 189.550249] [00000000006ee014] scsi_end_request+0x94/0x180 [ 189.601286] [00000000006ee334] scsi_io_completion+0x1d4/0x600 [ 189.655463] [00000000006e51c4] scsi_finish_command+0xc4/0xe0 [ 189.708598] [00000000006ed958] scsi_softirq_done+0x118/0x140 [ 189.761735] [00000000006398ec] __blk_mq_complete_request_remote+0xc/0x20 [ 189.827383] [00000000004c75d0] generic_smp_call_function_single_interrupt+0x150/0x1c0 [ 189.906581] [000000000043e514] smp_call_function_single_client+0x14/0x40 ==================== Based almost entirely upon a patch by Paul E. McKenney. Reported-by: Meelis Roos <mroos@linux.ee> Tested-by: Meelis Roos <mroos@linux.ee> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * | | | sparc64: Fix crashes in schizo_pcierr_intr_other().David S. Miller2014-11-011-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Meelis Roos reports crashes during bootup on a V480 that look like this: ==================== [ 61.300577] PCI: Scanning PBM /pci@9,600000 [ 61.304867] schizo f009b070: PCI host bridge to bus 0003:00 [ 61.310385] pci_bus 0003:00: root bus resource [io 0x7ffe9000000-0x7ffe9ffffff] (bus address [0x0000-0xffffff]) [ 61.320515] pci_bus 0003:00: root bus resource [mem 0x7fb00000000-0x7fbffffffff] (bus address [0x00000000-0xffffffff]) [ 61.331173] pci_bus 0003:00: root bus resource [bus 00] [ 61.385344] Unable to handle kernel NULL pointer dereference [ 61.390970] tsk->{mm,active_mm}->context = 0000000000000000 [ 61.396515] tsk->{mm,active_mm}->pgd = fff000b000002000 [ 61.401716] \|/ ____ \|/ [ 61.401716] "@'/ .. \`@" [ 61.401716] /_| \__/ |_\ [ 61.401716] \__U_/ [ 61.416362] swapper/0(0): Oops [#1] [ 61.419837] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.18.0-rc1-00422-g2cc9188-dirty #24 [ 61.427975] task: fff000b0fd8e9c40 ti: fff000b0fd928000 task.ti: fff000b0fd928000 [ 61.435426] TSTATE: 0000004480e01602 TPC: 00000000004455e4 TNPC: 00000000004455e8 Y: 00000000 Not tainted [ 61.445230] TPC: <schizo_pcierr_intr+0x104/0x560> [ 61.449897] g0: 0000000000000000 g1: 0000000000000000 g2: 0000000000a10f78 g3: 000000000000000a [ 61.458563] g4: fff000b0fd8e9c40 g5: fff000b0fdd82000 g6: fff000b0fd928000 g7: 000000000000000a [ 61.467229] o0: 000000000000003d o1: 0000000000000000 o2: 0000000000000006 o3: fff000b0ffa5fc7e [ 61.475894] o4: 0000000000060000 o5: c000000000000000 sp: fff000b0ffa5f3c1 ret_pc: 00000000004455cc [ 61.484909] RPC: <schizo_pcierr_intr+0xec/0x560> [ 61.489500] l0: fff000b0fd8e9c40 l1: 0000000000a20800 l2: 0000000000000000 l3: 000000000119a430 [ 61.498164] l4: 0000000001742400 l5: 00000000011cfbe0 l6: 00000000011319c0 l7: fff000b0fd8ea348 [ 61.506830] i0: 0000000000000000 i1: fff000b0fdb34000 i2: 0000000320000000 i3: 0000000000000000 [ 61.515497] i4: 00060002010b003f i5: 0000040004e02000 i6: fff000b0ffa5f481 i7: 00000000004a9920 [ 61.524175] I7: <handle_irq_event_percpu+0x40/0x140> [ 61.529099] Call Trace: [ 61.531531] [00000000004a9920] handle_irq_event_percpu+0x40/0x140 [ 61.537681] [00000000004a9a58] handle_irq_event+0x38/0x80 [ 61.543145] [00000000004ac77c] handle_fasteoi_irq+0xbc/0x200 [ 61.548860] [00000000004a9084] generic_handle_irq+0x24/0x40 [ 61.554500] [000000000042be0c] handler_irq+0xac/0x100 ==================== The problem is that pbm->pci_bus->self is NULL. This code is trying to go through the standard PCI config space interfaces to read the PCI controller's PCI_STATUS register. This doesn't work, because we more often than not do not enumerate the PCI controller as a bonafide PCI device during the OF device node scan. Therefore bus->self remains NULL. Existing common code for PSYCHO and PSYCHO-like PCI controllers handles this properly, by doing the config space access directly. Do the same here, pbm->pci_ops->{read,write}(). Reported-by: Meelis Roos <mroos@linux.ee> Tested-by: Meelis Roos <mroos@linux.ee> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | Merge tag 'md/3.18-fix' of git://neil.brown.name/mdLinus Torvalds2014-11-171-0/+4
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull md bugfix from Neil Brown: "One fix for md for 3.18. This fixes a regression introduced in 3.13" * tag 'md/3.18-fix' of git://neil.brown.name/md: md: Always set RECOVERY_NEEDED when clearing RECOVERY_FROZEN
| | * | | | | md: Always set RECOVERY_NEEDED when clearing RECOVERY_FROZENNeilBrown2014-11-161-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | md_check_recovery will skip any recovery and also clear MD_RECOVERY_NEEDED if MD_RECOVERY_FROZEN is set. So when we clear _FROZEN, we must set _NEEDED and ensure that md_check_recovery gets run. Otherwise we could miss out on something that is needed. In particular, this can make it impossible to remove a failed device from an array is the 'recovery-needed' processing didn't happen. Suitable for stable kernels since 3.13. Cc: stable@vger.kernel.org (3.13+) Reported-and-tested-by: Joe Lawrence <joe.lawrence@stratus.com> Fixes: 30b8feb730f9b9b3c5de02580897da03f59b6b16 Signed-off-by: NeilBrown <neilb@suse.de>
| * | | | | | Merge tag 'scsi-fixes' of ↵Linus Torvalds2014-11-168-37/+60
| |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "This is a set of six fixes and a MAINTAINER update. The fixes are two multipath (one in Test Unit Ready handling for the path checkers and one in the section of code that sends a start unit after failover; both of these were perturbed by the scsi-mq update), a CD-ROM door locking fix that was likewise introduced by scsi-mq and three driver fixes for a previous code update in cxgb4i, megaraid_sas and bnx2fc" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: bnx2fc: fix tgt spinlock locking megaraid_sas: fix bug in handling return value of pci_enable_msix_range() cxgb4i: send abort_rpl correctly cxgbi: add maintainer for cxgb3i/cxgb4i scsi: TUR path is down after adapter gets reset with multipath scsi: call device handler for failed TUR command scsi: only re-lock door after EH on devices that were reset
| | * | | | | | bnx2fc: fix tgt spinlock lockingMaurizio Lombardi2014-11-102-11/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bnx2fc_queuecommand(): when allocating a new io_req, the tgt_lock spinlock must be locked before calling bnx2fc_cmd_alloc(). The spinlock should also be kept locked until bnx2fc_post_io_req() has been completed. If not, a kernel thread may call bnx2fc_process_cq_compl() that extracts the newly allocated io_req from hba->cmd_mgr->cmds and destroys it while it is still being used by bnx2fc_post_io_req(). BUG: unable to handle kernel NULL pointer dereference at 000000000000004c IP: [<ffffffffa03130da>] bnx2fc_init_task+0x6a/0x230 [bnx2fc] PGD 0 Oops: 0000 [#1] SMP last sysfs file: /sys/devices/pci0000:00/0000:00:02.0/0000:04:00.3/net/eth3/type CPU 33 Modules linked in: autofs4 target_core_iblock target_core_file target_core_pscsi target_core_mod configfs bnx2fc cnic uio fcoe libfcoe libfc scsi_transport_fc 8021q garp scsi_tgt stp llc cpufreq_ondemand freq_table pcc_cpufreq ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables ipv6 power_meter microcode iTCO_wdt iTCO_vendor_support hpilo hpwdt sg bnx2x libcrc32c mdio serio_raw lpc_ich mfd_core shpchp ext4 jbd2 mbcache sd_mod crc_t10dif hpsa video output dm_mirror dm_region_hash dm_log dm_mod [last unloaded: scsi_wait_scan] Pid: 7355, comm: bnx2fc_thread/3 Not tainted 2.6.32-431.el6.x86_64 #1 HP ProLiant BL460c Gen8 RIP: 0010:[<ffffffffa03130da>] [<ffffffffa03130da>] bnx2fc_init_task+0x6a/0x230 [bnx2fc] RSP: 0018:ffff8820b0da3b68 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff882003801080 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff882003801100 RBP: ffff8820b0da3bc8 R08: ffffffff8160d4e8 R09: 0000000000000040 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88400e600e00 R13: ffff8840108fbe40 R14: ffff88200ffe5400 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8820b0da0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 000000000000004c CR3: 0000002010b67000 CR4: 00000000001407e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process bnx2fc_thread/3 (pid: 7355, threadinfo ffff88401f940000, task ffff884012f5f540) Stack: ffff8820b0da3bc8 ffffffff81527303 ffff884000000020 ffff8820b0da3bd8 <d> ffff8820b0da3b98 000000028138931a ffff88400f506078 ffff88400e600e00 <d> ffff88200ffe5400 ffff88200ffe5590 0000000000000021 0000000000000002 Call Trace: <IRQ> [<ffffffff81527303>] ? printk+0x41/0x46 [<ffffffffa03169bc>] bnx2fc_post_io_req+0x11c/0x440 [bnx2fc] [<ffffffff812825b9>] ? cpumask_next_and+0x29/0x50 [<ffffffff8137ffd0>] ? scsi_done+0x0/0x60 [<ffffffffa0316df7>] bnx2fc_queuecommand+0x117/0x140 [bnx2fc] [<ffffffff81380245>] scsi_dispatch_cmd+0xe5/0x310 [<ffffffff81388b9e>] scsi_request_fn+0x5ee/0x7a0 [<ffffffff812658f1>] __blk_run_queue+0x31/0x40 [<ffffffff81265a40>] blk_run_queue+0x30/0x50 [<ffffffff81387da6>] scsi_run_queue+0xc6/0x270 [<ffffffff81260f92>] ? elv_requeue_request+0x52/0xa0 [<ffffffff813897a0>] scsi_requeue_command+0x90/0xb0 [<ffffffff81389b84>] scsi_io_completion+0x154/0x6c0 [<ffffffff8137ff62>] scsi_finish_command+0xc2/0x130 [<ffffffff8138a255>] scsi_softirq_done+0x145/0x170 [<ffffffff8126e865>] blk_done_softirq+0x85/0xa0 [<ffffffff8107a8e1>] __do_softirq+0xc1/0x1e0 [<ffffffff8100c30c>] ? call_softirq+0x1c/0x30 [<ffffffff8100c30c>] call_softirq+0x1c/0x30 <EOI> [<ffffffff8100fa75>] ? do_softirq+0x65/0xa0 [<ffffffff8107a40a>] local_bh_enable_ip+0x9a/0xb0 [<ffffffff8152a4eb>] _spin_unlock_bh+0x1b/0x20 [<ffffffffa0313937>] bnx2fc_process_cq_compl+0x257/0x2b0 [bnx2fc] [<ffffffffa03114ea>] bnx2fc_percpu_io_thread+0xea/0x160 [bnx2fc] [<ffffffffa0311400>] ? bnx2fc_percpu_io_thread+0x0/0x160 [bnx2fc] [<ffffffff8109aef6>] kthread+0x96/0xa0 [<ffffffff8100c20a>] child_rip+0xa/0x20 [<ffffffff8109ae60>] ? kthread+0x0/0xa0 [<ffffffff8100c200>] ? child_rip+0x0/0x20 Code: 89 df 45 8b 7e 30 0f 85 75 01 00 00 89 d1 31 c0 c1 e9 03 83 e2 04 89 c9 f3 48 ab 74 06 c7 07 00 00 00 00 49 89 9c 24 88 01 00 00 <83> 7e 4c 01 b8 01 00 00 00 0f 84 e7 00 00 00 89 c2 0a 53 38 41 RIP [<ffffffffa03130da>] bnx2fc_init_task+0x6a/0x230 [bnx2fc] RSP <ffff8820b0da3b68> CR2: 000000000000004c Signed-off-by: Maurizio Lombardi <mlombard@redhat.com> Acked-by: Chad Dupuis <chad.dupuis@qlogic.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
| | * | | | | | megaraid_sas: fix bug in handling return value of pci_enable_msix_range()Jiang Liu2014-11-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Function pci_enable_msix_range() may return negative values for error conditions. So it's a bug by checking (pci_enable_msix_range() != 0) for success and causes failure to megaraid driver when MSI is disabled. [ 16.487267] megaraid_sas 0000:02:00.0: Controller type: iMR [ 16.487275] genirq: Flags mismatch irq 0. 00000000 (megasas) vs. 00015a00 (tii mer) [ 16.487347] megasas: Failed to register IRQ for vector 0. Fixes: 8ae80ed1734b "megaraid: Use pci_enable_msix_range() instead of pci_enable_msix()" Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Acked-by: Sumit Saxena <sumit.saxena@avagotech.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: <stable@vger.kernel.org> # 3.17
| | * | | | | | cxgb4i: send abort_rpl correctlyAnish Bhatt2014-11-102-16/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Connection retries were not being cleaned up correctly if they failed as a result of link down. Applies on top of drivers-for-3.18. Signed-off-by: Anish Bhatt <anish@chelsio.com> Signed-off-by: Karen Xie <kxie@chelsio.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
| | * | | | | | cxgbi: add maintainer for cxgb3i/cxgb4iAnish Bhatt2014-11-101-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Anish Bhatt <anish@chelsio.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
| | * | | | | | scsi: TUR path is down after adapter gets reset with multipathwenxiong@linux.vnet.ibm.com2014-11-101-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes an issue with multipath ipr SAS devices which require a start unit command to be issued following an adapter reset. Without this patch, paths get marked failed following an adapter reset and since the error handler never gets invoked to issue the start unit, the paths are never recovered. Returning FAILED for this case ensures the error handler wakes up to issue the start unit. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Tested-by: Wen Xiong <wenxiong@linux.vnet.ibm.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de>
| | * | | | | | scsi: call device handler for failed TUR commandChristoph Hellwig2014-11-101-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Multipath devices using the TUR path checker need to see the sense code for a failed TUR command in their device handler. Since commit 14216561e164671ce147458653b1fea06a we always return success for mid layer issued TUR commands before calling the device handler, which stopped the TUR path checker from working. Move the call to the device handler check sense method before the early return for TUR commands to give the device handler a chance to intercept them. Signed-off-by: Christoph Hellwig <hch@infradead.org> Tested-by: Wen Xiong <wenxiong@linux.vnet.ibm.com> Reviewed-by: Hannes Reinecke <hare@suse.de>
| | * | | | | | scsi: only re-lock door after EH on devices that were resetChristoph Hellwig2014-11-101-1/+3
| | |/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Setups that use the blk-mq I/O path can lock up if a host with a single device that has its door locked enters EH. Make sure to only send the command to re-lock the door to devices that actually were reset and thus might have lost their state. Otherwise the EH code might be get blocked on blk_get_request as all requests for non-reset devices might be in use. Cc: stable@vger.kernel.org Signed-off-by: Christoph Hellwig <hch@lst.de> Reported-by: Meelis Roos <meelis.roos@ut.ee> Tested-by: Meelis Roos <meelis.roos@ut.ee> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
| * | | | | | Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds2014-11-1611-26/+94
| |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "Microcode fixes, a Xen fix and a KASLR boot loading fix with certain memory layouts" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, microcode, AMD: Fix ucode patch stashing on 32-bit x86/core, x86/xen/smp: Use 'die_complete' completion when taking CPU down x86, microcode: Fix accessing dis_ucode_ldr on 32-bit x86, kaslr: Prevent .bss from overlaping initrd x86, microcode, AMD: Fix early ucode loading on 32-bit
| | * \ \ \ \ \ Merge tag 'microcode_fixes_for_3.18' of ↵Ingo Molnar2014-11-102-11/+15
| | |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp into x86/urgent Pull two fixes for early microcode loader on 32-bit from Borislav Petkov: - access the dis_ucode_ldr chicken bit properly - fix patch stashing on AMD on 32-bit Signed-off-by: Ingo Molnar <mingo@kernel.org>