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2011-02-19genirq: Move IRQ_PENDING flag to coreThomas Gleixner
Keep status in sync until all users are fixed. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-19genirq: Move IRQ_DISABLED to coreThomas Gleixner
Keep status in sync until all abusers are fixed. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-19genirq: Move IRQ_REPLAY and IRQ_WAITING to coreThomas Gleixner
No users outside of core. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-19genirq: Move IRQ_ONESHOT to coreThomas Gleixner
No users outside of core. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-19genirq: Add IRQ_INPROGRESS to coreThomas Gleixner
We need to maintain the flag for now in both fields status and istate. Add a CONFIG_GENERIC_HARDIRQS_NO_COMPAT switch to allow testing w/o the status one. Wrap the access to status IRQ_INPROGRESS in a inline which can be turned of with CONFIG_GENERIC_HARDIRQS_NO_COMPAT along with the define. There is no reason that anything outside of core looks at this. That needs some modifications, but we'll get there. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-19genirq: Move IRQ_POLL_INPROGRESS to coreThomas Gleixner
No users outside of core. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-19genirq: Use modify_status for set_irq_nested_threadThomas Gleixner
No need for a separate function in the core code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-19genirq: Move IRQ_SPURIOUS_DISABLED to core stateThomas Gleixner
No users outside. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-19genirq: Move IRQ_AUTODETECT to internal stateThomas Gleixner
No users outside of core Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-19genirq: Add internal state field to irq_descThomas Gleixner
That field will contain internal state information which is not going to be exposed to anything outside the core code - except via accessor functions. I'm tired of everyone fiddling in irq_desc.status. core_internal_state__do_not_mess_with_it is clear enough, annoying to type and easy to grep for. Offenders will be tracked down and slapped with stinking trouts. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-19genirq: Implement generic irq_show_interrupts()Thomas Gleixner
All archs implement show_interrupts() in more or less the same way. That's tons of duplicated code with different bugs with no value. Implement a generic version and deprecate show_interrupts() Unfortunately we need some ifdeffery for !GENERIC_HARDIRQ archs. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-19genirq: Move irq thread flags to coreThomas Gleixner
Soleley used in core code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-19genirq: Mark polled irqs and defer the real handlerThomas Gleixner
With the chip.end() function gone we might run into a situation where a poll call runs and the real interrupt comes in, sees IRQ_INPROGRESS and disables the line. That might be a perfect working one, which will then be masked forever. So mark them polled while the poll runs. When the real handler sees IRQ_INPROGRESS it checks the poll flag and waits for the polling to complete. Add the necessary amount of sanity checks to it to avoid deadlocks. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-19genirq: Do not copy affinity before setThomas Gleixner
While rumaging through arch code I found that there are a few workarounds which deal with the fact that the initial affinity setting from request_irq() copies the mask into irq_data->affinity before the chip code is called. In the normal path we unconditionally copy the mask when the chip code returns 0. Copy after the code is called and add a return code IRQ_SET_MASK_OK_NOCOPY for the chip functions, which prevents the copy. That way we see the real mask when the chip function decided to truncate it further as some arches do. IRQ_SET_MASK_OK is 0, which is the current behaviour. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-19genirq: Namespace cleanupThomas Gleixner
The irq namespace has become quite convoluted. My bad. Clean it up and deprecate the old functions. All new functions follow the scheme: irq number based: irq_set/get/xxx/_xxx(unsigned int irq, ...) irq_data based: irq_data_set/get/xxx/_xxx(struct irq_data *d, ....) irq_desc based: irq_desc_get_xxx(struct irq_desc *desc) Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-19Merge branch 'irq/urgent' into irq/coreThomas Gleixner
Reason: Further patches are conflicting with mainline fixes Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-19ARM: clcd: add method for describing display capabilitiesRussell King
The ARM CLCD PL110 controller in TFT mode provides two output formats based on whether the controller is in 24bpp mode or not - either 5551 or 888. PL111 augments this with a 444 and 565 modes. Some implementations provide an external MUX on the PL110 output to reassign the bits to achieve 565 mode. Provide a system of capability flags to allow the CLCD driver to work out what is supported by each panel and board, and therefore which display formats are permitted. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-19ARM: clcd: use amba_part() to determine if we have a PL110 primecellRussell King
Instead of matching the entire peripheral ID, match against just the part number using the amba_xxx() macros. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-18Merge branch 'rtc-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'rtc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: RTC: Re-enable UIE timer/polling emulation RTC: Revert UIE emulation removal RTC: Release mutex in error path of rtc_alarm_irq_enable
2011-02-18ssb: when needed, reject IM input while disabling deviceRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-02-18ssb: remove invalid define SSB_TMSLOW_PHYCLKRafał Miłecki
It was incorrectly introduced in d2730b2a6a019d14455556019d744ab051e6554b. We have already fixed function to use correct define, but forgot remove old one. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Cc: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-02-18staging: iio: ak8975: add platform data.Tony SIM
As some of the platform not support irq_to_gpio, we pass gpio port by platform data. Signed-off-by: Tony SIM <chinyeow.sim.xt@renesas.com> Signed-off-by: Andrew Chew <achew@nvidia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-02-18ipv4: Add hash table of interface addresses.David S. Miller
This will be used to optimize __ip_dev_find() and friends. With help from Eric Dumazet. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-02-18Merge branch 'fixes-2.6.38' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq * 'fixes-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: make sure MAYDAY_INITIAL_TIMEOUT is at least 2 jiffies long workqueue, freezer: unify spelling of 'freeze' + 'able' to 'freezable' workqueue: wake up a worker when a rescuer is leaving a gcwq
2011-02-18Merge 2.6.38-rc5 into staging-nextGreg Kroah-Hartman
This is to resolve a merge conflict with: drivers/staging/zram/zram_drv.c as pointed out by Stephen Rothwell Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Nitin Gupta <ngupta@vflare.org> Cc: Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-02-18Expand CONFIG_DEBUG_LIST to several other list operationsLinus Torvalds
When list debugging is enabled, we aim to readably show list corruption errors, and the basic list_add/list_del operations end up having extra debugging code in them to do some basic validation of the list entries. However, "list_del_init()" and "list_move[_tail]()" ended up avoiding the debug code due to how they were written. This fixes that. So the _next_ time we have list_move() problems with stale list entries, we'll hopefully have an easier time finding them.. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-02-18ASoC: Add kerneldoc for jack_status_check callbackMark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
2011-02-18ASoC: Allow GPIO jack detection to be configured as a wake sourceMark Brown
Some systems wish to use jacks as wake sources. Provide a wake flag in the GPIO configuration which causes the driver to enable the IRQ as a wake source. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
2011-02-18Driver core: convert platform_{get,set}_drvdata to static inline functionsMarc Kleine-Budde
This patch converts the macros for platform_{get,set}_drvdata to static inline functions to add typechecking. Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-02-18kobject.h: fix build when CONFIG_HOTPLUG is disabledRandy Dunlap
When CONFIG_HOTPLUG is not enabled, the inline function add_uevent_var() needs to have its __attribute__ before the function name/parameters, otherwise there are syntax errors. linux-next-20110207/include/linux/kobject.h:232: error: expected ',' or ';' before '{' token Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-02-18usb: otg: notifier: switch to atomic notifierFelipe Balbi
most of our notifications, will be called from IRQ context, so an atomic notifier suits the job better. Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-02-18usb: otg: TWL6030 Save the last event in otg_transceiverHema HK
Save the last event in the otg_transceiver so that it can used in the musb driver and gadget driver to configure the musb and enable the vbus for host mode and OTG mode, if the device is connected during boot. Signed-off-by: Hema HK <hemahk@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-02-17ipv4: Use const'ify fib_result deep in the route call chains.David S. Miller
The only troublesome bit here is __mkroute_output which wants to override res->fi and res->type, compute those in local variables instead. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-02-17ipv4: Mark fib_combine_itag()'s 'res' arg as const.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-02-17OMAP: OneNAND: fix 104MHz supportAdrian Hunter
104MHz needs a latency of 8 clock cycles and the VHF flag must be set. Also t_rdyo is specified as "not applicable" so pick a lower value, and force at least 1 clk between AVD High to OE Low. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-02-17net: Add initial_ref arg to dst_alloc().David S. Miller
This allows avoiding multiple writes to the initial __refcnt. The most simplest cases of wanting an initial reference of "1" in ipv4 and ipv6 have been converted, the rest have been left along and kept at the existing "0". Signed-off-by: David S. Miller <davem@davemloft.net>
2011-02-17RTC: Re-enable UIE timer/polling emulationJohn Stultz
This patch re-enables UIE timer/polling emulation for rtc devices that do not support alarm irqs. CC: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> CC: Thomas Gleixner <tglx@linutronix.de> Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Tested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-02-17RTC: Revert UIE emulation removalJohn Stultz
Uwe pointed out that my alarm based UIE emulation is not sufficient to replace the older timer/polling based UIE emulation on devices where there is no alarm irq. This causes rtc devices without alarms to return -EINVAL to UIE ioctls. The fix is to re-instate the old timer/polling method for devices without alarm irqs. This patch reverts the following commits: 042620a018afcfba1d678062b62e46 - Remove UIE emulation 1daeddd5962acad1bea55e524fc0fa - Cleanup removed UIE emulation declaration b5cc8ca1c9c3a37eaddf709b2fd3e1 - Remove Kconfig symbol for UIE emulation The emulation mode will still need to be wired-in with a following patch before it will work. CC: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> CC: Thomas Gleixner <tglx@linutronix.de> Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-02-17net: introduce NETIF_F_RXCSUMMichał Mirosław
Introduce NETIF_F_RXCSUM to replace device-private flags for RX checksum offload. Integrate it with ndo_fix_features. ethtool_op_get_rx_csum() is removed altogether as nothing in-tree uses it. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-02-17net: Introduce new feature setting opsMichał Mirosław
This introduces a new framework to handle device features setting. It consists of: - new fields in struct net_device: + hw_features - features that hw/driver supports toggling + wanted_features - features that user wants enabled, when possible - new netdev_ops: + feat = ndo_fix_features(dev, feat) - API checking constraints for enabling features or their combinations + ndo_set_features(dev) - API updating hardware state to match changed dev->features - new ethtool commands: + ETHTOOL_GFEATURES/ETHTOOL_SFEATURES: get/set dev->wanted_features and trigger device reconfiguration if resulting dev->features changed + ETHTOOL_GSTRINGS(ETH_SS_FEATURES): get feature bits names (meaning) Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-02-17ethtool: factorize get/set_one_featureMichał Mirosław
This allows to enable GRO even if RX csum is disabled. GRO will not be used for packets without hardware checksum anyway. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-02-17ethtool: enable GSO and GRO by defaultMichał Mirosław
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-02-17tty: add TIOCVHANGUP to allow clean tty shutdown of all ttysKay Sievers
This is useful for system management software so that it can kick off things like gettys and everything that's started from a tty, before we reuse it from/for something else or shut it down. Without this ioctl it would have to temporarily become the owner of the tty, then call vhangup() and then give it up again. Cc: Lennart Poettering <lennart@poettering.net> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-02-17tty: add a helper for setting termios data from kernel sideAlan Cox
This basically encapsulates the small bit of locking knowledge needed. While we are at it make sure we blow up on any more abusers and unsafe misuses of ioctl for this kind of stuff. We change the function to return an argument as at some point it needs to honour the POSIX 'I asked for changes but got none of them' error reporting corner case. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-02-17tty: fix build error in vt_ioctl.c if CONFIG_COMPAT is enabledGreg Kroah-Hartman
This was caused by the previous patch to remove the file pointer from the tty ioctl handler. Cc: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-02-17tty: now phase out the ioctl file pointer for goodAlan Cox
Only oddities here are a couple of drivers that bogusly called the ldisc helpers instead of returning -ENOIOCTLCMD. Fix the bug and the rest goes away. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-02-17tty: remove filp from the USB tty ioctlsAlan Cox
We don't use it so we can trim it from here as we try and stamp the file object dependencies out of the serial code. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-02-17tiocmset: kill the file pointer argumentAlan Cox
Doing tiocmget was such fun we should do tiocmset as well for the same reasons Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-02-17tiocmget: kill off the passing of the struct fileAlan Cox
We don't actually need this and it causes problems for internal use of this functionality. Currently there is a single use of the FILE * pointer. That is the serial core which uses it to check tty_hung_up_p. However if that is true then IO_ERROR is also already set so the check may be removed. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-02-17tty,vcs removing con_buf/conf_buf_mtxJiri Olsa
seems there's no longer need for using con_buf/conf_buf_mtx as vcs_read/vcs_write buffer for user's data. The do_con_write function, that was the other user of this, is currently using its own kmalloc-ed buffer. Not sure when this got changed, as I was able to find this code in 2.6.9, but it's already gone as far as current git history goes - 2.6.12-rc2. AFAICS there's a behaviour change with the current change. The lseek is not completely mutually exclusive with the vcs_read/vcs_write - the file->f_pos might get updated via lseek callback during the vcs_read/vcs_write processing. I tried to find out if the prefered behaviour is to keep this in sync within read/write/lseek functions, but I did not find any pattern on different places. I guess if user end up calling write/lseek from different threads she should know what she's doing. If needed we could use dedicated fd mutex/buffer. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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