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* clk: fix compile for OF && !COMMON_CLKRob Herring2012-07-191-1/+1
| | | | | | | | | | With commit 766e6a4ec602d0c107 (clk: add DT clock binding support), compiling with OF && !COMMON_CLK is broken. Reported-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com> Reported-by: Prashant Gaikwad <pgaikwad@nvidia.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
* clk: fix clk_get on of_clk_get_by_name return checkShawn Guo2012-07-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | The commit 766e6a4 (clk: add DT clock binding support) plugs device tree clk lookup of_clk_get_by_name into clk_get, and fall on non-DT lookup clk_get_sys if DT lookup fails. The return check on of_clk_get_by_name takes (clk != NULL) as a successful DT lookup. But it's not the case. For any system that does not define clk lookup in device tree, ERR_PTR(-ENOENT) will be returned, and consequently, all the client drivers calling clk_get in their probe functions will fail to probe with error code -ENOENT returned. Fix the issue by checking of_clk_get_by_name return with !IS_ERR(clk), and update of_clk_get and of_clk_get_by_name for !CONFIG_OF build correspondingly. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Rob Herring <rob.herring@calxeda.com> Tested-by: Marek Vasut <marex@denx.de> Tested-by: Lauri Hintsala <lauri.hintsala@bluegiga.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
* Merge branch 'clk/mxs-for-3.6' of ↵Mike Turquette2012-07-121-0/+4
|\ | | | | | | git://git.linaro.org/people/shawnguo/linux-2.6 into clk-next
| * clk: mxs: clk_register_clkdev mx28 usb clocksRichard Zhao2012-07-121-0/+4
| | | | | | | | | | | | Signed-off-by: Richard Zhao <richard.zhao@freescale.com> Tested-by: Subodh Nijsure <snijsure@grid-net.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
* | clk: add highbank clock supportRob Herring2012-07-122-0/+347
| | | | | | | | | | | | | | | | | | This adds real clock support to Calxeda Highbank SOC using the common clock infrastructure. Signed-off-by: Rob Herring <rob.herring@calxeda.com> [mturquette@linaro.org: fixed up invalid writes to const struct member] Signed-off-by: Mike Turquette <mturquette@linaro.org>
* | clk: add DT fixed-clock binding supportGrant Likely2012-07-121-0/+23
| | | | | | | | | | | | | | | | | | | | Add support for DT "fixed-clock" binding to the common fixed rate clock support. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> [Rob Herring] Rework and move into common clock infrastructure Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
* | clk: add DT clock binding supportGrant Likely2012-07-122-0/+217
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on work 1st by Ben Herrenschmidt and Jeremy Kerr, then by Grant Likely, this patch adds support to clk_get to allow drivers to retrieve clock data from the device tree. Platforms scan for clocks in DT with of_clk_init and a match table, and the register a provider through of_clk_add_provider. The provider's clk_src_get function will be called when a device references the provider's OF node for a clock reference. v6 (Rob Herring): - Return error values instead of NULL to match clock framework expectations v5 (Rob Herring): - Move from drivers/of into common clock subsystem - Squashed "dt/clock: add a simple provider get function" and "dt/clock: add function to get parent clock name" - Rebase to 3.4-rc1 - Drop CONFIG_OF_CLOCK and just use CONFIG_OF - Add missing EXPORT_SYMBOL to various functions - s/clock-output-name/clock-output-names/ - Define that fixed-clock binding is a single output v4 (Rob Herring): - Rework for common clk subsystem - Add of_clk_get_parent_name function v3: - Clarified documentation v2: - fixed errant ';' causing compile error - Editorial fixes from Shawn Guo - merged in adding lookup to clkdev - changed property names to match established convention. After working with the binding a bit it really made more sense to follow the lead of 'reg', 'gpios' and 'interrupts' by making the input simply 'clocks' & 'clock-names' instead of 'clock-input-*', and to only use clock-output* for the producer nodes. (Sorry Shawn, this will mean you need to change some code, but it should be trivial) - Add ability to inherit clocks from parent nodes by using an empty 'clock-ranges' property. Useful for busses. I could use some feedback on the new property name, 'clock-ranges' doesn't feel right to me. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Reviewed-by: Shawn Guo <shawn.guo@freescale.com> Cc: Sascha Hauer <kernel@pengutronix.de> Signed-off-by: Mike Turquette <mturquette@linaro.org>
* | ARM: integrator: convert to common clockLinus Walleij2012-07-122-0/+112
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This converts the Integrator platform to use common clock and the ICST driver. Since from this point not all ARM reference platforms use the clock, we define CONFIG_PLAT_VERSATILE_CLOCK and select it for all platforms except the Integrator. Open issue: I could not use the .init_early() field of the machine descriptor to initialize the clocks, but had to move them to .init_irq(), so presumably .init_early() is so early that common clock is not up, and .init_machine() is too late since it's needed for the clockevent/clocksource initialization. Any suggestions on how to solve this is very welcome. Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> [mturquette@linaro.org: use 'select' instead of versatile Kconfig] Signed-off-by: Mike Turquette <mturquette@linaro.org>
* | clk: add versatile ICST307 driverLinus Walleij2012-07-124-0/+113
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ICST307 VCO clock has a shared driver in the ARM architecture. This patch provides a wrapper into the common clock framework so we can use the implementation in the ARM architecture without duplicating the code until all ARM platforms using this VCO are moved over. At that point we can merge the driver from the ARM platform into the generic file altogether. Cc: Russell King <linux@arm.linux.org.uk> Cc: Mike Turquette <mturquette@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> [mturquette@linaro.org: removed versatile Kconfig] Signed-off-by: Mike Turquette <mturquette@linaro.org>
* | Merge branch 'clk/mxs-for-3.6' of ↵Mike Turquette2012-07-122-5/+7
|\| | | | | | | git://git.linaro.org/people/shawnguo/linux-2.6 into clk-3.6
| * clk: mxs: imx28: decrease the frequency of ref_io1 for SSP2 and SSP3Lauri Hintsala2012-07-051-3/+3
| | | | | | | | | | | | | | | | SSP0 and SSP1 use ref_io0 which has decreased frequency. Expand the frequency fix for ref_io1 to get SSP2 and SSP3 to work. Signed-off-by: Lauri Hintsala <lauri.hintsala@bluegiga.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
| * clk: mxs: add clkdev lookup for pwmShawn Guo2012-06-272-0/+2
| | | | | | | | | | | | Add pwm clock lookup for imx23 and imx28 booting from device tree. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
| * clk: mxs: Fix the GPMI clock nameFabio Estevam2012-06-271-1/+1
| | | | | | | | | | | | | | | | The correct name for the GPMI clock is 'gpmi-nand'. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Marek Vasut <marex@denx.de> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
| * clk: mxs: rename the gpmi clock for imx28Huang Shijie2012-06-271-1/+1
| | | | | | | | | | | | | | rename the clock name from `8000c000.gpmi` to `8000c000.gpmi-nand`. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
* | ARM: u300: convert to common clockLinus Walleij2012-07-122-1/+748
| | | | | | | | | | | | | | | | | | | | | | This converts the U300 clock implementation over to use the common struct clk and moves the implementation down into drivers/clk. Since VCO isn't used in tree it was removed, it's not hard to put it back in if need be. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> [mturquette@linaro.org: trivial Makefile conflict] Signed-off-by: Mike Turquette <mturquette@linaro.org>
* | clk: cache parent clocks only for muxesRajendra Nayak2012-07-121-2/+2
| | | | | | | | | | | | | | | | | | | | caching parent clocks makes sense only when a clock has more than one parent (mux clocks). Avoid doing this for every other clock. Signed-off-by: Rajendra Nayak <rnayak@ti.com> [mturquette@linaro.org: removed extra parentheses] Signed-off-by: Mike Turquette <mturquette@linaro.org>
* | clk: wm831x: Add initial WM831x clock driverMark Brown2012-07-123-0/+438
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The WM831x and WM832x series of PMICs contain a flexible clocking subsystem intended to provide always on and system core clocks. It features: - A 32.768kHz crystal oscillator which can optionally be used to pass through an externally generated clock. - A FLL which can be clocked from either the 32.768kHz oscillator or the CLKIN pin. - A CLKOUT pin which can bring out either the oscillator or the FLL output. - The 32.768kHz clock can also optionally be brought out on the GPIO pins of the device. This driver fully supports the 32.768kHz oscillator and CLKOUT. The FLL is supported only in AUTO mode, the full flexibility of the FLL cannot currently be used. Due to a lack of access to systems where the core SoC has been converted to use the generic clock API this driver has been compile tested only. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
* | clk: Add CLK_IS_BASIC flag to identify basic clocksRajendra Nayak2012-07-125-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most platforms end up using a mix of basic clock types and some which use clk_hw_foo struct for filling in custom platform information when the clocks don't fit into basic types supported. In platform code, its useful to know if a clock is using a basic type or clk_hw_foo, which helps platforms know if they can safely use to_clk_hw_foo to derive the clk_hw_foo pointer from clk_hw. Mark all basic clocks with a CLK_IS_BASIC flag. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
* | clk: Add support for rate table based dividersRajendra Nayak2012-07-121-16/+109
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some divider clks do not have any obvious relationship between the divider and the value programmed in the register. For instance, say a value of 1 could signify divide by 6 and a value of 2 could signify divide by 4 etc. Also there are dividers where not all values possible based on the bitfield width are valid. For instance a 3 bit wide bitfield can be used to program a value from 0 to 7. However its possible that only 0 to 4 are valid values. All these cases need the platform code to pass a simple table of divider/value tuple, so the framework knows the exact value to be written based on the divider calculation and can also do better error checking. This patch adds support for such rate table based dividers and as part of the support adds a new registration function 'clk_register_divider_table()' and a new macro for static definition 'DEFINE_CLK_DIVIDER_TABLE'. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
* | clk: Add support for power of two type dividersRajendra Nayak2012-07-121-19/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Quite often dividers and the value programmed in the register have a relation of 'power of two', something like value div 0 1 1 2 2 4 3 8... Add support for such dividers as part of clk-divider. The clk-divider flag 'CLK_DIVIDER_POWER_OF_TWO' should be used to define such clocks. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pendingLinus Torvalds2012-07-062-18/+20
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull target fixes from Nicholas Bellinger: "Two minor target fixes. There is really nothing exciting and/or controversial this time around. There's one fix from MDR for a RCU debug warning message within tcm_fc code (CC'ed to stable), and a small AC fix for qla_target.c based upon a recent Coverity static report. Also, there is one other outstanding virtio-scsi LUN scanning bugfix that has been uncovered with the in-flight tcm_vhost driver over the last days, and that needs to make it into 3.5 final too. This patch has been posted to linux-scsi again here: http://marc.info/?l=linux-scsi&m=134160609212542&w=2 and I've asked James to include it in his next PULL request." * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: qla2xxx: print the right array elements in qlt_async_event tcm_fc: Resolve suspicious RCU usage warnings
| * | qla2xxx: print the right array elements in qlt_async_eventAlan Cox2012-07-061-17/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based upon Alan's patch from Coverity scan id 793583, these debug messages in qlt_async_event() should be starting from byte 0, which is always the Asynchronous Event Status Code from the parent switch statement. Also, rename reason_code -> login_code following the language used in 2500 FW spec for Port Database Changed (0x8014) -> Port Database Changed Event Mailbox Register for mailbox[2]. Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: Chad Dupuis <chad.dupuis@qlogic.com> Cc: Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
| * | tcm_fc: Resolve suspicious RCU usage warningsMark Rustad2012-07-061-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use rcu_dereference_protected to tell rcu that the ft_lport_lock is held during ft_lport_create. This resolved "suspicious RCU usage" warnings when debugging options are turned on. Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
* | | Merge tag 'for-linus-20120706' of git://git.infradead.org/linux-mtdLinus Torvalds2012-07-062-1/+8
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull two MTD fixes from David Woodhouse: - Fix a logic error in OLPC CAFÉ NAND ready() function. - Fix regression due to bitflip handling changes. * tag 'for-linus-20120706' of git://git.infradead.org/linux-mtd: mtd: cafe_nand: fix an & vs | mistake mtd: nand: initialize bitflip_threshold prior to BBT scanning
| * | | mtd: cafe_nand: fix an & vs | mistakeDan Carpenter2012-07-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The intent here was clearly to set result to true if the 0x40000000 flag was set. But instead there was a | vs & typo and we always set result to true. Artem: check the spec at wiki.laptop.org/images/5/5c/88ALP01_Datasheet_July_2007.pdf and this fix looks correct. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: stable@vger.kernel.org Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| * | | mtd: nand: initialize bitflip_threshold prior to BBT scanningShmulik Ladkani2012-06-091-0/+7
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As of edbc454 [mtd: driver _read() returns max_bitflips; mtd_read() returns -EUCLEAN], 'mtd->bitflip_threshold' must be set for mtd devices having ECC, prior any 'mtd_read()' call. Otherwise, 'mtd_read()' will falsely return -EUCLEAN. Normally, 'mtd->bitflip_threshold' is initialized when the MTD is added. However, this is too late for NAND MTDs, as 'scan_bbt()' is invoked prior the existing initialization of 'mtd->bitflip_threshold'. This is a problem since 'scan_bbt()' calls 'mtd_read()', in the case of a flash-based bad block table. It resulted in a falsely reported bitflips indication during BBT read, which lead to constant scrubbing of the flash BBT blocks. Initialize 'mtd->bitflip_threshold' to its default value (if not already set by the driver), prior to invocation of 'scan_bbt()'. Reported-by: Sascha Hauer <s.hauer@pengutronix.de> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2012-07-0618-25/+38
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input layer fixes from Dmitry Torokhov: "Two fixes for regressions in Wacom driver and fixes for drivers using threaded IRQ framework without specifying IRQF_ONESHOT." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: request threaded-only IRQs with IRQF_ONESHOT Input: wacom - don't retrieve touch_max when it is predefined Input: wacom - fix retrieving touch_max bug Input: fix input.h kernel-doc warning
| * | | Input: request threaded-only IRQs with IRQF_ONESHOTLars-Peter Clausen2012-07-0417-23/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 1c6c69525b ("genirq: Reject bogus threaded irq requests") threaded IRQs without a primary handler need to be requested with IRQF_ONESHOT, otherwise the request will fail. This patch adds the IRQF_ONESHOT to input drivers where it is missing. Not modified by this patch are those drivers where the requested IRQ will always be a nested IRQ (e.g. because it's part of an MFD), since for this special case IRQF_ONESHOT is not required to be specified when requesting the IRQ. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| * | | Input: wacom - don't retrieve touch_max when it is predefinedPing Cheng2012-06-291-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some models, such as 0xE6, report more fingers than we process. Reported-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Ping Cheng <pingc@wacom.com> Tested-by: Nils Kanning <nils@kanning.de> Tested-by: Rafi Rubin <rafi@seas.upenn.edu> Reviewed-by: Jason Gerecke <killertofu@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| * | | Input: wacom - fix retrieving touch_max bugPing Cheng2012-06-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | rep_data is not an array anymore, so taking it's address when passing to wacom_get_report() is wrong. Signed-off-by: Ping Cheng <pingc@wacom.com> Tested-by: Rafi Rubin <rafi@seas.upenn.edu> Reviewed-by: Jason Gerecke <killertofu@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* | | | Merge branch 'fixes-for-3.5' of ↵Linus Torvalds2012-07-051-1/+15
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds Pull leds fix from Bryan Wu: "Fix for heartbeat led trigger driver" * 'fixes-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds: leds: heartbeat: fix bug on panic
| * | | | leds: heartbeat: fix bug on panicAlexander Holler2012-07-041-1/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With commit 49dca5aebfdeadd4bf27b6cb4c60392147dc35a4 I introduced a bug (visible if CONFIG_PROVE_RCU is enabled) which occures when a panic has happened: [ 1526.520230] =============================== [ 1526.520230] [ INFO: suspicious RCU usage. ] [ 1526.520230] 3.5.0-rc1+ #12 Not tainted [ 1526.520230] ------------------------------- [ 1526.520230] /c/kernel-tests/mm/include/linux/rcupdate.h:436 Illegal context switch in RCU read-side critical section! [ 1526.520230] [ 1526.520230] other info that might help us debug this: [ 1526.520230] [ 1526.520230] [ 1526.520230] rcu_scheduler_active = 1, debug_locks = 0 [ 1526.520230] 3 locks held by net.agent/3279: [ 1526.520230] #0: (&mm->mmap_sem){++++++}, at: [<ffffffff82f85962>] do_page_fault+0x193/0x390 [ 1526.520230] #1: (panic_lock){+.+...}, at: [<ffffffff82ed2830>] panic+0x37/0x1d3 [ 1526.520230] #2: (rcu_read_lock){.+.+..}, at: [<ffffffff810b9b28>] rcu_lock_acquire+0x0/0x29 [ 1526.520230] [ 1526.520230] stack backtrace: [ 1526.520230] Pid: 3279, comm: net.agent Not tainted 3.5.0-rc1+ #12 [ 1526.520230] Call Trace: [ 1526.520230] [<ffffffff810e1570>] lockdep_rcu_suspicious+0x109/0x112 [ 1526.520230] [<ffffffff810bfe3a>] rcu_preempt_sleep_check+0x45/0x47 [ 1526.520230] [<ffffffff810bfe5a>] __might_sleep+0x1e/0x19a [ 1526.520230] [<ffffffff82f8010e>] down_write+0x26/0x81 [ 1526.520230] [<ffffffff8276a966>] led_trigger_unregister+0x1f/0x9c [ 1526.520230] [<ffffffff8276def5>] heartbeat_reboot_notifier+0x15/0x19 [ 1526.520230] [<ffffffff82f85bf5>] notifier_call_chain+0x96/0xcd [ 1526.520230] [<ffffffff82f85cba>] __atomic_notifier_call_chain+0x8e/0xff [ 1526.520230] [<ffffffff81094b7c>] ? kmsg_dump+0x37/0x1eb [ 1526.520230] [<ffffffff82f85d3f>] atomic_notifier_call_chain+0x14/0x16 [ 1526.520230] [<ffffffff82ed28e1>] panic+0xe8/0x1d3 [ 1526.520230] [<ffffffff811473e2>] out_of_memory+0x15d/0x1d3 So in case of a panic, now just turn of the LED. Other approaches like scheduling a work to unregister the trigger aren't working because there isn't much which still runs after a panic occured (except timers). Signed-off-by: Alexander Holler <holler@ahsoftware.de> Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
* | | | | Merge branch 'fixes-for-grant' of git://sources.calxeda.com/kernel/linuxLinus Torvalds2012-07-052-4/+27
|\ \ \ \ \ | |/ / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull DT fixes from Rob Herring: "Mainly some documentation updates and 2 fixes: - An export symbol fix for of_platform_populate from Stephen W. - A fix for the order compatible entries are matched to ensure the first compatible string is matched when there are multiple matches." Normally these would go through Grant Likely (thus the "fixes-for-grant" branch name), but Grant is in the middle of moving to Scotland, and is practically offline until sometime in August. So pull directly from Rob. * 'fixes-for-grant' of git://sources.calxeda.com/kernel/linux: of: match by compatible property first dt: mc13xxx.txt: Fix gpio number assignment dt: fsl-fec.txt: Fix gpio number assignment dt: fsl-mma8450.txt: Add missing 'reg' description dt: fsl-imx-esdhc.txt: Fix gpio number assignment dt: fsl-imx-cspi.txt: Fix comment about GPIOs used for chip selects of: Add Avionic Design vendor prefix of: export of_platform_populate()
| * | | | of: match by compatible property firstThierry Reding2012-06-151-4/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When matching devices against an OF device ID table, the first string of the compatible property that is listed in the table should match, regardless of its position in the table. Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: devicetree-discuss@lists.ozlabs.org Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
| * | | | of: export of_platform_populate()Stephen Warren2012-06-131-0/+1
| | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | Without this, modules can't use this API, leading to build failures. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* | | | Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linuxLinus Torvalds2012-07-041-15/+13
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull fix to common clk framework from Michael Turquette: "The previous set of common clk fixes for -rc5 left an uninitialized int which could lead to bad array indexing when switching clock parents. The issue is fixed with a trivial change to the code flow in __clk_set_parent." * tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux: clk: fix parent validation in __clk_set_parent()
| * | | | clk: fix parent validation in __clk_set_parent()Rajendra Nayak2012-07-031-15/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The below commit introduced a bug in __clk_set_parent() which could cause it to *skip* the parent validation which makes sure the parent passed to the api is a valid one. commit 7975059db572eb47f0fb272a62afeae272a4b209 Author: Rajendra Nayak <rnayak@ti.com> Date: Wed Jun 6 14:41:31 2012 +0530 clk: Allow late cache allocation for clk->parents This was identified by the following compiler warning.. drivers/clk/clk.c: In function '__clk_set_parent': drivers/clk/clk.c:1083:5: warning: 'i' may be used uninitialized in this function [-Wuninitialized] .. as reported by Marc Kleine-Budde. There were various options discussed on how to fix this, one being initing 'i' to clk->num_parents, but the below approach was found to be more appropriate as it also makes the 'parent validation' code simpler to read. Reported-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Mike Turquette <mturquette@linaro.org> Cc: stable@kernel.org
* | | | | Merge tag 'md-3.5-fixes' of git://neil.brown.name/mdLinus Torvalds2012-07-041-1/+1
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull raid10 build failure fix from NeilBrown: "I really shouldn't do important things late in the day. It seems that I get careless." * tag 'md-3.5-fixes' of git://neil.brown.name/md: md/raid10: fix careless build error
| * | | | | md/raid10: fix careless build errorNeilBrown2012-07-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | build error introduced by commit b357f04a67c2aeee8 That function doesn't get extra args until a later patch. Bother. Reported-by: Fengguang Wu <wfg@linux.intel.com> Reported-by: Simon Kirby <sim@hostway.ca> Reported-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de> Signed-off-by: NeilBrown <neilb@suse.de>
* | | | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2012-07-0420-101/+108
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking update from David Miller: 1) Fix RX sequence number handling in mwifiex, from Stone Piao. 2) Netfilter ipset mis-compares device names, fix from Florian Westphal. 3) Fix route leak in ipv6 IPVS, from Eric Dumazet. 4) NFS fixes. Several buffer overflows in NCI layer from Dan Rosenberg, and release sock OOPS'er fix from Eric Dumazet. 5) Fix WEP handling ath9k, we started using a bit the chip provides to indicate undecrypted packets but that bit turns out to be unreliable in certain configurations. Fix from Felix Fietkau. 6) Fix Kconfig dependency bug in wlcore, from Randy Dunlap. 7) New USB IDs for rtlwifi driver from Larry Finger. 8) Fix crashes in qmi_wwan usbnet driver when disconnecting, from Bjørn Mork. 9) Gianfar driver programs coalescing settings properly in single queue mode, but does not do so in multi-queue mode. Fix from Claudiu Manoil. 10) Missing module.h include in davinci_cpdma.c, from Daniel Mack. 11) Need dummy handler for IPSET_CMD_NONE otherwise we crash in ipset if we get this via nfnetlink, fix from Tomasz Bursztyka. 12) Missing RCU unlock in nfnetlink error path, also from Tomasz. 13) Fix divide by zero in igbvf when the user tries to set an RX coalescing value of 0 usecs, from Mitch A Williams. 14) We can process SCTP sacks for the wrong transport, oops. Fix from Neil Horman. 15) Remove hw IP payload checksumming from e1000e driver. This has zery value in our stack, and turning it on creates a very unintuitive restriction for users when using jumbo MTUs. Specifically, when IP payload checksums are on you cannot use both receive hashing offload and jumbo MTU. Fix from Bruce Allan. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (27 commits) e1000e: remove use of IP payload checksum sctp: be more restrictive in transport selection on bundled sacks igbvf: fix divide by zero netfilter: nfnetlink: fix missing rcu_read_unlock in nfnetlink_rcv_msg netfilter: ipset: fix crash if IPSET_CMD_NONE command is sent davinci_cpdma: include linux/module.h gianfar: Fix RXICr/TXICr programming for multi-queue mode net: Downgrade CAP_SYS_MODULE deprecated message from error to warning. net: qmi_wwan: fix Oops while disconnecting mwifiex: fix memory leak associated with IE manamgement ath9k: fix panic caused by returning a descriptor we have queued for reuse mac80211: correct behaviour on unrecognised action frames ath9k: enable serialize_regmode for non-PCIE AR9287 rtlwifi: rtl8192cu: New USB IDs NFC: Return from rawsock_release when sk is NULL iwlwifi: fix activating inactive stations wlcore: drop INET dependency ath9k: fix dynamic WEP related regression NFC: Prevent multiple buffer overflows in NCI netfilter: update location of my trees ...
| * | | | | | e1000e: remove use of IP payload checksumBruce Allan2012-07-012-61/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently only used when packet split mode is enabled with jumbo frames, IP payload checksum (for fragmented UDP packets) is mutually exclusive with receive hashing offload since the hardware uses the same space in the receive descriptor for the hardware-provided packet checksum and the RSS hash, respectively. Users currently must disable jumbos when receive hashing offload is enabled, or vice versa, because of this incompatibility. Since testing has shown that IP payload checksum does not provide any real benefit, just remove it so that there is no longer a choice between jumbos or receive hashing offload but not both as done in other Intel GbE drivers (e.g. e1000, igb). Also, add a missing check for IP checksum error reported by the hardware; let the stack verify the checksum when this happens. CC: stable <stable@vger.kernel.org> [3.4] Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | igbvf: fix divide by zeroMitch A Williams2012-07-011-11/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Using ethtool -C ethX rx-usecs 0 crashes with a divide by zero. Refactor this function to fix this issue and make it more clear what the intent of each conditional is. Add comment regarding using a setting of zero. CC: stable <stable@vger.kernel.org> [3.3+] CC: David Ahern <daahern@cisco.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | davinci_cpdma: include linux/module.hDaniel Mack2012-06-291-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a number of warnings such as: CC drivers/net/ethernet/ti/davinci_cpdma.o drivers/net/ethernet/ti/davinci_cpdma.c:279:1: warning: data definition has no type or storage class drivers/net/ethernet/ti/davinci_cpdma.c:279:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL_GPL’ drivers/net/ethernet/ti/davinci_cpdma.c:279:1: warning: parameter names (without types) in function declaration Signed-off-by: Daniel Mack <zonque@gmail.com> Cc: Vaibhav Hiremath <hvaibhav@ti.com> Cc: David S. Miller <davem@davemloft.net> Cc: Christian Riesch <christian.riesch@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | Merge branch 'for-davem' of ↵David S. Miller2012-06-2914-23/+66
| |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless John Linville says: ==================== Amitkumar Karwar gives us two mwifiex fixes: one fixes some skb manipulations when handling some event messages; and another that does some similar fixing on an error path. Avinash Patil gives us a fix for for a memory leak in mwifiex. Dan Rosenberg offers an NFC NCI fix to enforce some message length limits to prevent buffer overflows. Eliad Peller provides a mac80211 fix to prevent some frames from being built with an invalid BSSID. Eric Dumazet sends an NFC fix to prevent a BUG caused by a NULL pointer dereference. Felix Fietkau has an ath9k fix for a regression causing LEAP-authenticated connection failures. Johannes Berg provides an iwlwifi fix that eliminates some log SPAM after an authentication/association timeout. He also provides a mac80211 fix to prevent incorrectly addressing certain action frames (and in so doing, to comply with the 802.11 specs). Larry Finger provides a few USB IDs for the rtl8192cu driver -- should be harmless. Panayiotis Karabassis provices a one-liner to fix kernel bug 42903 (a system freeze). Randy Dunlap provides a one-line Kconfig change to prevent build failures with some configurations. Stone Piao provides an mwifiex sequence numbering fix and a fix to prevent mwifiex from attempting to include eapol frames in an aggregation frame. Finally, Tom Hughes provides an ath9k fix for a NULL pointer dereference. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| | * \ \ \ \ \ Merge branch 'master' of ↵John W. Linville2012-06-2814-23/+66
| | |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
| | | * | | | | | mwifiex: fix memory leak associated with IE manamgementAvinash Patil2012-06-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Free ap_custom_ie before return from function. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | | * | | | | | ath9k: fix panic caused by returning a descriptor we have queued for reuseTom Hughes2012-06-271-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 3a2923e83c introduced a bug when a corrupt descriptor is encountered - although the following descriptor is discarded and returned to the queue for reuse the associated frame is also returned for processing. This leads to a panic: BUG: unable to handle kernel NULL pointer dereference at 000000000000003a IP: [<ffffffffa02599a5>] ath_rx_tasklet+0x165/0x1b00 [ath9k] Call Trace: <IRQ> [<ffffffff812d7fa0>] ? map_single+0x60/0x60 [<ffffffffa028f044>] ? ath9k_ioread32+0x34/0x90 [ath9k] [<ffffffffa0292eec>] athk9k_tasklet+0xdc/0x160 [ath9k] [<ffffffff8105e133>] tasklet_action+0x63/0xd0 [<ffffffff8105dbc0>] __do_softirq+0xc0/0x1e0 [<ffffffff8101a873>] ? native_sched_clock+0x13/0x80 [<ffffffff815f9d5c>] call_softirq+0x1c/0x30 [<ffffffff810151f5>] do_softirq+0x75/0xb0 [<ffffffff8105df95>] irq_exit+0xb5/0xc0 [<ffffffff815fa5b3>] do_IRQ+0x63/0xe0 [<ffffffff815f0cea>] common_interrupt+0x6a/0x6a <EOI> [<ffffffff8131840a>] ? intel_idle+0xea/0x150 [<ffffffff813183eb>] ? intel_idle+0xcb/0x150 [<ffffffff814a1db9>] cpuidle_enter+0x19/0x20 [<ffffffff814a23d9>] cpuidle_idle_call+0xa9/0x240 [<ffffffff8101c4bf>] cpu_idle+0xaf/0x120 [<ffffffff815cda8e>] rest_init+0x72/0x74 [<ffffffff81cf4c1a>] start_kernel+0x3b7/0x3c4 [<ffffffff81cf4662>] ? repair_env_string+0x5e/0x5e [<ffffffff81cf4346>] x86_64_start_reservations+0x131/0x135 [<ffffffff81cf444a>] x86_64_start_kernel+0x100/0x10f Making sure bf is cleared to NULL in this case restores the old behaviour. Signed-off-by: Tom Hughes <tom@compton.nu> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | | * | | | | | ath9k: enable serialize_regmode for non-PCIE AR9287Panayiotis Karabassis2012-06-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://bugzilla.kernel.org/show_bug.cgi?id=42903 Based on the work of <fynivx@gmail.com> Signed-off-by: Panayiotis Karabassis <panayk@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | | * | | | | | rtlwifi: rtl8192cu: New USB IDsLarry Finger2012-06-271-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The latest Realtek driver for the RTL8188CU and RTL8192CU chips adds three new USB IDs. Reported-by: Xose Vazquez Perez <xose.vazquez@gmail.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@vger.kernel.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | | * | | | | | iwlwifi: fix activating inactive stationsJohannes Berg2012-06-251-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When authentication/association timed out, the driver would complain bitterly, printing the message ACTIVATE a non DRIVER active station id ... addr ... The cause turns out to be that when the AP station is added but we don't associate, the IWL_STA_UCODE_INPROGRESS is set but never cleared. This then causes iwl_restore_stations() to attempt to resend it because it uses the flag internally and uploads even if it didn't set it itself. To fix this issue and not upload the station again when it has already been removed by mac80211, clear the flag after adding it in case we add it only for association. Cc: stable@vger.kernel.org Reviewed-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-18 11:19:12 +0100