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* mfd: twl-core: Add initial DT support for twl4030/twl6030Benoit Cousson2012-01-093-2/+98
| | | | | | | | | | | | | | | | | | | | Add initial device-tree support for twl familly chips. The current version is missing the regulator entries due to the lack of DT regulator bindings for the moment. Only the simple sub-modules that do not depend on platform_data information can be initialized properly. Add irqdomain support. Add documentation for the Texas Instruments TWL Integrated Chip. Signed-off-by: Benoit Cousson <b-cousson@ti.com> Cc: Balaji T K <balajitk@ti.com> Cc: Graeme Gregory <gg@slimlogic.co.uk> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Acked-by: Rob Herring <rob.herring@calxeda.com> [grant.likely@secretlab.ca: Fix IRQ_DOMAIN dependency in kconfig] Cc: Grant Likely <grant.likely@secretlab.ca>
* mfd: Return an error on failed wm831x register writesMark Brown2012-01-091-0/+2
| | | | | | | Got dropped in the regmap conversion. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Convert WM8400 to devm_kzalloc()Mark Brown2012-01-091-5/+2
| | | | | Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Unify abx500 headers in mfd/abx500Linus Walleij2012-01-0920-18/+18
| | | | | | | | | | | | This moves all the header files related to the abx500 family into a common include directory below mfd. From now on we place any subchip header in that directory. Headers previously in e.g. <linux/mfd/ab8500/gpio.h> get prefixed and are now e.g. <linux/mfd/abx500/ab8500-gpio.h>. The top-level abstract interface remains in <linux/mfd/abx500.h>. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Add missing mutex.h inclusion to WM8994 core.hMark Brown2012-01-091-0/+1
| | | | | | | | struct wm8994 includes a mutex so we need to include mutex.h before we declare it. All current users rely on this being done implicitly. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Use gpio_request_one from twl6040-coreAxel Lin2012-01-091-5/+2
| | | | | | | Use gpio_request_one() instead of multiple gpiolib calls. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Use gpio_request_one from omap-usb-hostAxel Lin2012-01-091-12/+6
| | | | | | | Use gpio_request_one() instead of multiple gpiolib calls. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Use gpio_request_one from dm355evm_mspAxel Lin2012-01-091-2/+1
| | | | | | | Use gpio_request_one() instead of multiple gpiolib calls. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Use gpio_request_one from aat2870-coreAxel Lin2012-01-091-2/+2
| | | | | | | | Use gpio_request_one() instead of multiple gpiolib calls. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Jin Park <jinyoungp@nvidia.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Convert to DEFINE_PCI_DEVICE_TABLEAxel Lin2012-01-095-5/+5
| | | | | | | | | | | | | | Convert static struct pci_device_id *[] to static DEFINE_PCI_DEVICE_TABLE tables. Cc: Andres Salomon <dilinger@queued.net> Cc: Denis Turischev <denis@compulab.co.il> Cc: Ben Dooks <ben@simtec.co.uk> Cc: Vincent Sanders <vince@simtec.co.uk> Cc: Mocean Laboratories <info@mocean-labs.com> Cc: Harald Welte <HaraldWelte@viatech.com> Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Add WM1811A device ID to wm8994 driverMark Brown2012-01-091-0/+1
| | | | | | | The WM1811A is a variant of the WM1811 with pin configuration changes. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Add a dependency on HAVE_CLK for tc6393xbChristoph Fritz2012-01-091-1/+1
| | | | | | | tc6393xb calls the clk API. Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Don't declare jz4740_adc_cells constAxel Lin2012-01-091-1/+1
| | | | | | | | | | | | | | | Remove the const keyword to fix below warning: CC drivers/mfd/jz4740-adc.o drivers/mfd/jz4740-adc.c: In function 'jz4740_adc_probe': drivers/mfd/jz4740-adc.c:290: warning: passing argument 3 of 'mfd_add_devices' discards qualifiers from pointer target type include/linux/mfd/core.h:93: note: expected 'struct mfd_cell *' but argument is of type 'const struct mfd_cell *' Also make jz4740_adc_cells static, is not used outside this driver so no need to make the symbol global. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Use standard device wakeup for handling max8998 wakeup deviceJonghwan Choi2012-01-091-2/+4
| | | | | | | | Use device_init_wakeup & device_may_wakeup to init wakeup Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Constify WM8994 regulator_init_dataMark Brown2012-01-091-1/+1
| | | | | | | | The driver has no need to modify the regulator_init_data so declare it const to allow machine code to do so. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Fix cs5535 section mismatchChristian Gmeiner2012-01-091-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Silence following warnings: WARNING: drivers/mfd/cs5535-mfd.o(.data+0x20): Section mismatch in reference from the variable cs5535_mfd_drv to the function .devinit.text:cs5535_mfd_probe() The variable cs5535_mfd_drv references the function __devinit cs5535_mfd_probe() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console WARNING: drivers/mfd/cs5535-mfd.o(.data+0x28): Section mismatch in reference from the variable cs5535_mfd_drv to the function .devexit.text:cs5535_mfd_remove() The variable cs5535_mfd_drv references the function __devexit cs5535_mfd_remove() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console Rename the variable from *_drv to *_driver so modpost ignore the OK references to __devinit/__devexit functions. Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com> Acked-by: Andres Salomon <dilinger@queued.net> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Add device tree probe support for mc13xxxShawn Guo2012-01-092-31/+128
| | | | | | | This adds device tree probe support for mc13xxx mfd driver. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* ARM: sa1100: Refactor mcp-sa11x0 to use platform resources.Jochen Friedrich2012-01-098-53/+176
| | | | | | | | Make use of memory resources rather than hardcoded IO adresses. This is a first step towards DT support. Signed-off-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* ARM: sa11x0: Implement autoloading of codec and codec pdata for mcp bus.Jochen Friedrich2012-01-0915-21/+138
| | | | | Signed-off-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Fix twl4030-irq typoNeilBrown2012-01-091-1/+1
| | | | | | | overwriten -> overwritten Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Set twl4030-irq tertiary interrupts to be nested/threaded.NeilBrown2012-01-091-0/+1
| | | | | | | | | | | | | As tertiary interrupts are handled by handle_twl4030_sih calling handle_nested_irq, they do not need their own separate irq thread. So mark them as 'nested_thread' interrupts to avoid the extra thread creation. Tested on GTA04 Pheonux. Signed-off-by: NeilBrown <neilb@suse.de> Tested-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Fixed unconditional reset of the mc13xxx ADC reading enable bitsRobin van der Gracht2012-01-092-2/+10
| | | | | | | | | | When the ADC is being prepared for a single or multiple channel reading, the adc0 register is reconfigured without taking the lithium cell, charge current and battery current reading enable bits into account. Which results in clearing the bits. Signed-off-by: Robin van der Gracht <robin@protonic.nl> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* misc: Add driver support for MAX8997 MUICDonggeun Kim2012-01-093-0/+643
| | | | | | | | | | | The MUIC function in MAX8997 device can be used as a USB port detector and switch. This patch supports the MUIC feature of MAX8997. Signed-off-by: Donggeun Kim <dg77.kim@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Add platform data for MAX8997 MUIC driverDonggeun Kim2012-01-091-1/+57
| | | | | | | | | | Currently, MAX8997 device does not support MUIC function of it. To add MAX8997 MUIC driver, header file should be updated. Signed-off-by: Donggeun Kim <dg77.kim@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Convert WM8350 to devm_kzalloc()Mark Brown2012-01-091-3/+1
| | | | | Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Store wm8350 struct in core device driver dataMark Brown2012-01-091-0/+2
| | | | | | | | This will allow us to move to a more idiomatic MFD model as drivers will be able to get the struct by looking at their parent device. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Remove redundant spi driver bus initializationLars-Peter Clausen2012-01-093-3/+0
| | | | | | | | | | | | | | | | | | | | | | In ancient times it was necessary to manually initialize the bus field of an spi_driver to spi_bus_type. These days this is done in spi_driver_register(), so we can drop the manual assignment. The patch was generated using the following coccinelle semantic patch: // <smpl> @@ identifier _driver; @@ struct spi_driver _driver = { .driver = { - .bus = &spi_bus_type, }, }; // </smpl> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Convert MFD drivers to use module_platform_driverMark Brown2012-01-0910-120/+10
| | | | | | | | | Factors out some boilerplate code for drivers doing the default thing for platform driver registration. Drivers using platform_driver_probe or an initcall other than module_init can't be converted. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Add basic device tree binding for wm8994Mark Brown2012-01-092-0/+27
| | | | | | | | | Add a placeholder device tree binding for the wm8994 driver. At present the binding is essentially null as none of the platform data is supported, and at least some of that will depend on the pending regulator bindings. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Convert 88pm860x to use regmap apiJett.Zhou2012-01-093-62/+47
| | | | | | | | | Convert the 88pm860x normal bank register read/write to use the register map API. Signed-off-by: Jett.Zhou <jtzhou@marvell.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Fix 88pm860x test bank i2c interface bugJett.Zhou2012-01-091-46/+89
| | | | | | | | | | | | | | | | | | | | | There are two banks in 88pm8607. One is the normal bank, and the other one is the test bank, it means it have the same register address in the normal bank and test bank seperately. For test bank register, it needs a special I2C sequence to acess as below, Touching to 0xFA address Touching to 0xFB address Touching to 0xFF address Accessing bank register Touching to 0xFE address Touching to 0xFC address This sequence can't be interrupted. It means that we can't use i2c_transfef() to implement touching 0xFA address. Otherwise, other i2c operation may be inserted into 0xFA and 0xFB operation since the lock of i2c_adapter is already released. So for test bank we implemented specific i2c read/write operation; Signed-off-by: Jett.Zhou <jtzhou@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Disable more pulls on WM8994Mark Brown2012-01-092-3/+14
| | | | | | | | | Disable more pulls by default on WM8994 for a small current saving. Since some designs do leave SPKMODE floating provide platform data to allow that to be left enabled. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Add support for irq over gpio pin to stmpeViresh Kumar2012-01-092-7/+36
| | | | | | | | | | On many boards, stmpe is present as an separate device (not as part of SoC). Here gpio lines are mostly used for getting interrupts. This patch adds in support to handle irq over gpio pin. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Convert wm8994 to devm_kzalloc()Mark Brown2012-01-091-11/+5
| | | | | Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Convert wm831x core driver to devm_kzalloc()Mark Brown2012-01-093-6/+2
| | | | | Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* Linux 3.2v3.2Linus Torvalds2012-01-051-1/+1
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* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2012-01-057-15/+32
|\ | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: fix CAN MAINTAINERS SCM tree type mwifiex: fix crash during simultaneous scan and connect b43: fix regression in PIO case ath9k: Fix kernel panic in AR2427 in AP mode CAN MAINTAINERS update net: fsl: fec: fix build for mx23-only kernel sch_qfq: fix overflow in qfq_update_start() Revert "Bluetooth: Increase HCI reset timeout in hci_dev_do_close"
| * Merge branch 'master' of ↵John W. Linville2012-01-044-5/+23
| |\ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
| | * mwifiex: fix crash during simultaneous scan and connectAmitkumar Karwar2012-01-031-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If 'iw connect' command is fired when driver is already busy in serving 'iw scan' command, ssid specific scan operation for connect is skipped. In this case cmd wait queue handler gets called with no command in queue (i.e. adapter->cmd_queued = NULL). This patch adds a NULL check in mwifiex_wait_queue_complete() routine to fix crash observed during simultaneous scan and assoc operations. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * b43: fix regression in PIO caseGuennadi Liakhovetski2012-01-031-3/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the regression, introduced by commit 17030f48e31adde5b043741c91ba143f5f7db0fd From: Rafał Miłecki <zajec5@gmail.com> Date: Thu, 11 Aug 2011 17:16:27 +0200 Subject: [PATCH] b43: support new RX header, noticed to be used in 598.314+ fw in PIO case. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * ath9k: Fix kernel panic in AR2427 in AP modeMohammed Shafi Shajakhan2012-01-031-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | don't do aggregation related stuff for 'AP mode client power save handling' if aggregation is not enabled in the driver, otherwise it will lead to panic because those data structures won't be never intialized in 'ath_tx_node_init' if aggregation is disabled EIP is at ath_tx_aggr_wakeup+0x37/0x80 [ath9k] EAX: e8c09a20 EBX: f2a304e8 ECX: 00000001 EDX: 00000000 ESI: e8c085e0 EDI: f2a304ac EBP: f40e1ca4 ESP: f40e1c8c DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Process swapper/1 (pid: 0, ti=f40e0000 task=f408e860 task.ti=f40dc000) Stack: 0001e966 e8c09a20 00000000 f2a304ac e8c085e0 f2a304ac f40e1cb0 f8186741 f8186700 f40e1d2c f922988d f2a304ac 00000202 00000001 c0b4ba43 00000000 0000000f e8eb75c0 e8c085e0 205b0001 34383220 f2a304ac f2a30000 00010020 Call Trace: [<f8186741>] ath9k_sta_notify+0x41/0x50 [ath9k] [<f8186700>] ? ath9k_get_survey+0x110/0x110 [ath9k] [<f922988d>] ieee80211_sta_ps_deliver_wakeup+0x9d/0x350 [mac80211] [<c018dc75>] ? __module_address+0x95/0xb0 [<f92465b3>] ap_sta_ps_end+0x63/0xa0 [mac80211] [<f9246746>] ieee80211_rx_h_sta_process+0x156/0x2b0 [mac80211] [<f9247d1e>] ieee80211_rx_handlers+0xce/0x510 [mac80211] [<c018440b>] ? trace_hardirqs_on+0xb/0x10 [<c056936e>] ? skb_queue_tail+0x3e/0x50 [<f9248271>] ieee80211_prepare_and_rx_handle+0x111/0x750 [mac80211] [<f9248bf9>] ieee80211_rx+0x349/0xb20 [mac80211] [<f9248949>] ? ieee80211_rx+0x99/0xb20 [mac80211] [<f818b0b8>] ath_rx_tasklet+0x818/0x1d00 [ath9k] [<f8187a75>] ? ath9k_tasklet+0x35/0x1c0 [ath9k] [<f8187a75>] ? ath9k_tasklet+0x35/0x1c0 [ath9k] [<f8187b33>] ath9k_tasklet+0xf3/0x1c0 [ath9k] [<c0151b7e>] tasklet_action+0xbe/0x180 Cc: stable@kernel.org Cc: Senthil Balasubramanian <senthilb@qca.qualcomm.com> Cc: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Reported-by: Ashwin Mendonca <ashwinloyal@gmail.com> Tested-by: Ashwin Mendonca <ashwinloyal@gmail.com> Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * Merge branch 'master' of ↵John W. Linville2012-01-031-1/+1
| | |\ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth
| | | * Revert "Bluetooth: Increase HCI reset timeout in hci_dev_do_close"Gustavo F. Padovan2011-12-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit e1b6eb3ccb0c2a34302a9fd87dd15d7b86337f23. This was causing a delay of 10 seconds in the resume process of a Thinkpad laptop. I'm afraid this could affect more devices once 3.2 is released. Reported-by: Tomáš Janoušek <tomi@nomi.cz> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
| * | | fix CAN MAINTAINERS SCM tree typeOliver Hartkopp2012-01-031-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As pointed out by Joe Perches the SCM tree type was missing in my patch. Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> CC: Oliver Hartkopp <oliver.hartkopp@volkswagen.de> CC: Urs Thuermann <urs.thuermann@volkswagen.de> CC: Wolfgang Grandegger <wg@grandegger.com> CC: Marc Kleine-Budde <mkl@pengutronix.de> CC: linux-can@vger.kernel.org
| * | | CAN MAINTAINERS updateOliver Hartkopp2012-01-031-6/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the CAN MAINTAINERS section: - point out active maintainers - pull the CAN driver discussion away from netdev ML - point to the new CAN web site on gitorious.org - add CAN development git repository URL to submit patches Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> CC: Oliver Hartkopp <oliver.hartkopp@volkswagen.de> CC: Urs Thuermann <urs.thuermann@volkswagen.de> CC: Wolfgang Grandegger <wg@grandegger.com> CC: Marc Kleine-Budde <mkl@pengutronix.de> CC: linux-can@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | net: fsl: fec: fix build for mx23-only kernelWolfram Sang2012-01-031-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If one only selects mx23-based boards, compile fails: drivers/net/ethernet/freescale/fec.c:410:2: error: 'FEC_HASH_TABLE_HIGH' undeclared (first use in this function) drivers/net/ethernet/freescale/fec.c:411:2: error: 'FEC_HASH_TABLE_LOW' undeclared (first use in this function) This is because fec.h uses CONFIG_SOC_IMX28 to determine the register layout of the core which makes sense since the MX23 does not have a fec. However, Kconfig uses the broader ARCH_MXS symbol and this way even makes the fec-driver default for MX23. Adapt Kconfig to use the more precise SOC_IMX28 as well. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Shawn Guo <shawn.guo@linaro.org> Cc: David S. Miller <davem@davemloft.net> Acked-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | sch_qfq: fix overflow in qfq_update_start()Eric Dumazet2012-01-031-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | grp->slot_shift is between 22 and 41, so using 32bit wide variables is probably a typo. This could explain QFQ hangs Dave reported to me, after 2^23 packets ? (23 = 64 - 41) Reported-by: Dave Taht <dave.taht@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Stephen Hemminger <shemminger@vyatta.com> CC: Dave Taht <dave.taht@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | minixfs: misplaced checks lead to dentry leakAl Viro2012-01-051-17/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bitmap size sanity checks should be done *before* allocating ->s_root; there their cleanup on failure would be correct. As it is, we do iput() on root inode, but leak the root dentry... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Josh Boyer <jwboyer@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | ptrace: ensure JOBCTL_STOP_SIGMASK is not zero after detachOleg Nesterov2012-01-052-3/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the temporary simple fix for 3.2, we need more changes in this area. 1. do_signal_stop() assumes that the running untraced thread in the stopped thread group is not possible. This was our goal but it is not yet achieved: a stopped-but-resumed tracee can clone the running thread which can initiate another group-stop. Remove WARN_ON_ONCE(!current->ptrace). 2. A new thread always starts with ->jobctl = 0. If it is auto-attached and this group is stopped, __ptrace_unlink() sets JOBCTL_STOP_PENDING but JOBCTL_STOP_SIGMASK part is zero, this triggers WANR_ON(!signr) in do_jobctl_trap() if another debugger attaches. Change __ptrace_unlink() to set the artificial SIGSTOP for report. Alternatively we could change ptrace_init_task() to copy signr from current, but this means we can copy it for no reason and hide the possible similar problems. Acked-by: Tejun Heo <tj@kernel.org> Cc: <stable@kernel.org> [3.1] Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | ptrace: partially fix the do_wait(WEXITED) vs EXIT_DEAD->EXIT_ZOMBIE raceOleg Nesterov2012-01-051-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Test-case: int main(void) { int pid, status; pid = fork(); if (!pid) { for (;;) { if (!fork()) return 0; if (waitpid(-1, &status, 0) < 0) { printf("ERR!! wait: %m\n"); return 0; } } } assert(ptrace(PTRACE_ATTACH, pid, 0,0) == 0); assert(waitpid(-1, NULL, 0) == pid); assert(ptrace(PTRACE_SETOPTIONS, pid, 0, PTRACE_O_TRACEFORK) == 0); do { ptrace(PTRACE_CONT, pid, 0, 0); pid = waitpid(-1, NULL, 0); } while (pid > 0); return 1; } It fails because ->real_parent sees its child in EXIT_DEAD state while the tracer is going to change the state back to EXIT_ZOMBIE in wait_task_zombie(). The offending commit is 823b018e which moved the EXIT_DEAD check, but in fact we should not blame it. The original code was not correct as well because it didn't take ptrace_reparented() into account and because we can't really trust ->ptrace. This patch adds the additional check to close this particular race but it doesn't solve the whole problem. We simply can't rely on ->ptrace in this case, it can be cleared if the tracer is multithreaded by the exiting ->parent. I think we should kill EXIT_DEAD altogether, we should always remove the soon-to-be-reaped child from ->children or at least we should never do the DEAD->ZOMBIE transition. But this is too complex for 3.2. Reported-and-tested-by: Denys Vlasenko <vda.linux@googlemail.com> Tested-by: Lukasz Michalik <lmi@ift.uni.wroc.pl> Acked-by: Tejun Heo <tj@kernel.org> Cc: <stable@kernel.org> [3.0+] Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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