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2006-06-27Merge branch 'upstream-linus' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: [netdrvr] Remove long-unused bits from Becker template drivers [netdrvr] natsemi: minor cleanups [netdrvr] natsemi: Separate out media initialization code [PATCH] WAN: update info page for a bunch of my drivers [PATCH] drivers/net/hamradio/dmascc.c: fix section mismatch [PATCH] Fix phy id for LXT971A/LXT972A [PATCH] DM9000 - minor code cleanups [PATCH] DM9000 - do no re-init spin lock [PATCH] DM9000 - check for MAC left in by bootloader [PATCH] DM9000 - better checks for platform resources
2006-06-27Merge git://git.infradead.org/mtd-2.6Linus Torvalds
* git://git.infradead.org/mtd-2.6: [MTD] NAND: Select chip before checking write protect status [MTD] CORE mtdchar.c: fix off-by-one error in lseek() [MTD] NAND: Fix typo in mtd/nand/ts7250.c [JFFS2][XATTR] coexistence between xattr and write buffering support. [JFFS2][XATTR] Fix wrong copyright [JFFS2][XATTR] Re-define xd->refcnt as atomic_t [JFFS2][XATTR] Fix memory leak with jffs2_xattr_ref [JFFS2][XATTR] rid unnecessary writing of delete marker. [JFFS2][XATTR] Fix ACL bug when updating null xattr by null ACL. [JFFS2][XATTR] using 'delete marker' for xdatum/xref deletion [MTD] Fix off-by-one error in physmap.c [MTD] Remove unused 'nr_banks' variable from ixp2000 map driver [MTD NAND] s3c2412 support in s3c2410.c [MTD] Initialize 'writesize' [MTD] NAND: ndfc fix address offset thinko [MTD] NAND: S3C2410 convert prinks to dev_*()s [MTD] NAND: Missing fixups
2006-06-27Merge branch 'upstream-linus' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: [PATCH] ata_piix: add ICH6/7/8 to Kconfig [PATCH] sata_sil: disable hotplug interrupts on two ATI IXPs [PATCH] libata: cosmetic updates [PATCH] ata: add some NVIDIA chipset IDs [PATCH] libata reduce timeouts [PATCH] libata: implement ata_port_max_devices() [PATCH] libata: make two functions global [PATCH] libata: update ata_do_simple_cmd() [PATCH] libata: move ata_do_simple_cmd() below ata_exec_internal() [PATCH] libata: clear EH action on device detach [PATCH] libata: implement and use ata_deh_dev_action() [PATCH] libata: move ata_eh_clear_action() upward [PATCH] libata.h needs scatterlist.h [libata] sata_vsc: partially revert a PCI ID-related commit [libata] Bump versions
2006-06-27[PATCH] i2c-i801.c: don't pci_disable_device() after it was just enabledDaniel Ritz
Commit 02dd7ae2892e5ceff111d032769c78d3377df970 ("[PATCH] i2c-i801: Merge setup function") has a missing return 0 in the _probe() function. This means the error path is always executed and pci_disable_device() is called even when the device just got successfully enabled. Having the SMBus device disabled makes some systems (eg. Fujitsu-Siemens Lifebook E8010) hang hard during power-off. Intead of reverting the whole commit this patch fixes it up: - don't ever call pci_disable_device(), also not in the _remove() function to avoid hangs - fix missing pci_release_region() in error path Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] m68knommu: FEC driver event/irq fixesGreg Ungerer
Collection of fixes for the ColdFire FEC ethernet driver: . reworked event setting so that it occurs after the MII setup. roucaries bastien <roucaries.bastien@gmail.com> . Do not read cbd_sc in memory for each bit we test. Once per buffer is enough. . Overrun errors must increase `rx_fifo_errors', not `rx_crc_errors' . No need for a special value to activate rx or tx. Only write access matters. . Simplify parameter of eth_copy_and_sum : `data' has already the right value. . Some spelling fixes. Signed-off-by: Philippe De Muyter <phdm@macqel.be> Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] m68knommu: FEC driver set different priority/level on each IRQWillson Callan
Set different irq priority levels for each IRQ requested. According to the Freescale ColdFire documentation each separate IRQ must have its own unique priority/level combination. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] m68knommu: FEC driver support for the ColdFire 523x CPU familyMatt Waddel
Add support for the FEC module in the ColdFire 532x CPU family. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] m68knommu: avoid fec driver hang when link disappearsPhilippe De Muyter
Avoid requesting a `Graceful Transmit Stop' when link has disappeared, because that request cannot complete without link. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27Merge master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvbLinus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (26 commits) V4L/DVB (4263): Fix warning when compiling on 64 bit machines V4L/DVB (4261): Included required header for in-kernel compilation V4L/DVB (4260): Stradis.c: make 2 functions static V4L/DVB (4259): Pass an explicit log prefix to cx2341x_log_status V4L/DVB (4257): Fix 64-bit compile warnings. V4L/DVB (4255): Tda9887 default TOP value is 0x10 V4L/DVB (4254): Remove obsoleted tuner_debug option. V4L/DVB (4253): IVTV VBI format description too long. V4L/DVB (4252): Remove duplicate 'tda9887' in info messages. V4L/DVB (4245): Reduce the amount of pvrusb2-sourced noise going into the system log V4L/DVB (4244): Implement use of cx2341x module in pvrusb2 driver V4L/DVB (4243): Exploit new V4L control features in pvrusb2 V4L/DVB (4242): Don't suspend encoder when changing its attributes (in pvrusb2) V4L/DVB (4241): Fix faulty encoder error recovery in pvrusb2 V4L/DVB (4240): Various V4L control enhancements in pvrusb2 V4L/DVB (4239): Handle boolean controls in pvrusb2 V4L/DVB (4238): Make sure flags field is initialized when quering a control in pvrusb2 V4L/DVB (4237): Move LOG_STATUS bracketing to a different part of the pvrusb2 driver V4L/DVB (4236): Rearrange things in pvrusb2 driver in preparation for using cx2341x module V4L/DVB (4235): Increase the maximum number of controls that pvrusb2-sysfs.c can handle. ...
2006-06-27[PATCH] i4l fix DLE masking in isdn_tty_try_readKarsten Keil
DLE masking was non-functional since the new tty handling. Found by Peter Evertz <leo2@pec.homeip.net> Signed-off-by: Karsten Keil <kkeil@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] drivers/message/i2o/iop.c: unexport i2o_msg_nop()Adrian Bunk
It's available in a header as a static inline - there's no need to export it. Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Markus Lidel <Markus.Lidel@shadowconnect.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] drivers/char/ipmi/ipmi_msghandler.c: make proc_ipmi_root staticAdrian Bunk
Make struct proc_ipmi_root static. Besides this, tremove removes an unused #ifdef CONFIG_PROC_FS from include/linux/ipmi.h. Acked-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] Remove redundant NULL checks before [kv]free - in drivers/Jesper Juhl
Remove redundant NULL chck before kfree + tiny CodingStyle cleanup for drivers/ Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] sched: mc/smt power savings sched policySiddha, Suresh B
sysfs entries 'sched_mc_power_savings' and 'sched_smt_power_savings' in /sys/devices/system/cpu/ control the MC/SMT power savings policy for the scheduler. Based on the values (1-enable, 0-disable) for these controls, sched groups cpu power will be determined for different domains. When power savings policy is enabled and under light load conditions, scheduler will minimize the physical packages/cpu cores carrying the load and thus conserving power(with a perf impact based on the workload characteristics... see OLS 2005 CMP kernel scheduler paper for more details..) Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Con Kolivas <kernel@kolivas.org> Cc: "Chen, Kenneth W" <kenneth.w.chen@intel.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] chardev: GPIO for SCx200 & PC-8736x: add proper Kconfig, Makefile ↵Jim Cromie
entries Replace the temp makefile hacks with proper CONFIG entries, which are also added to Kconfig. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] chardev: GPIO for SCx200 & PC-8736x: display pin values in/out in ↵Jim Cromie
gpio_dump Add current pin settings to gpio_dump() output. This adds the last 'word' to the syslog lines, which displays the input and output values that the pin is set to. pc8736x_gpio.0: io00: 0x0044 TS OD PUE EDGE LO DEBOUNCE io:1/1 The 2 values may differ for a number of reasons: 1- the pin output circuitry is diaabled, (as the above 'TS' indicates) 2- it needs a pullup resistor to drive the attached circuit, 3- the external circuit needs a pullup so the open-drain has something to pull-down 4- the pin is wired to Vcc or Ground It might be appropriate to add a WARN for 2,3,4, since they could damage the chip and/or circuit, esp if misconfig goes unnoticed. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] gpio-patchset-fixups: include linux/io.hJim Cromie
Hmm. Im somewhat ambivalent about this patch, since with it, driver wont build for vanilla 17 or older. Its also only 1/2 of your suggestion - when I tried it, I was building against vanilla 17, and asm/uaccess.h cause compilation failure. Looking back, Im perplexed as to why linux/io.h didnt cause same failure ?!? use linux/io.h rather than asm/io.h Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] chardev: GPIO for SCx200 & PC-8736x: replace spinlocks w mutexesJim Cromie
Replace spinlocks guarding gpio config ops with mutexes. This is a me-too patch, and is justifiable insofar as mutexes have stricter semantics and better debugging support, so are preferred where they are applicable. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] chardev: GPIO for SCx200 & PC-8736x: fix gpio_current, use shadow regsJim Cromie
Add a working gpio_current() to pc8736x_gpio.c (the previous implementation just threw a dev_warn), and fix gpio_change() to use gpio_current() rather than the incorrect (and temporary) gpio_get(). Initialize shadow-regs so this all works. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] chardev: GPIO for SCx200 & PC-8736x: use dev_dbg in common moduleJim Cromie
Use of dev_dbg() and friends is considered good practice. dev_dbg() needs a struct device *devp, but nsc_gpio is only a helper module, so it doesnt have/need its own. To provide devp to the user-modules (scx200 & pc8736x _gpio), we add it to the vtable, and set it during init. Also squeeze nsc_gpio_dump()'s format a little. [ 199.259879] pc8736x_gpio.0: io09: 0x0044 TS OD PUE EDGE LO DEBOUNCE Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] chardev: GPIO for SCx200 & PC-8736x: add platform_device for use w ↵Jim Cromie
dev_dbg Adds platform-device to (just introduced) driver, and uses it to replace many printks with dev_dbg() etc. This could trivially be merged into previous patch, but this way matches better with the corresponding patch that does the same change to scx200_gpio. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] chardev: GPIO for SCx200 & PC-8736x: add new pc8736x_gpio moduleJim Cromie
Add the brand new pc8736x_gpio driver. This is mostly based upon scx200_gpio.c, but the platform_dev is treated separately, since its fairly big too. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] chardev: GPIO for SCx200 & PC-8736x: migrate gpio_dump to common moduleJim Cromie
Since the meaning of config-bits is the same for scx200 and pc8736x _gpios, we can share a function to deliver this to user. Since it is called via the vtable, its also completely replaceable. For now, we keep using printk... Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] chardev: GPIO for SCx200 & PC-8736x: migrate file-ops to common moduleJim Cromie
Now that the read(), write() file-ops are dispatching gpio-ops via the vtable, they are generic, and can be moved 'verbatim' to the nsc_gpio common-support module. After the move, various symbols are renamed to update 'scx200_' to 'nsc_', and headers are adjusted accordingly. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] chardev: GPIO for SCx200 & PC-8736x: add empty common-moduleJim Cromie
Add the nsc_gpio common-support module as an empty shell. Next patch starts the migration of the common gpio support routines. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] chardev: GPIO for SCx200 & PC-8736x: dispatch via vtableJim Cromie
Now actually call the gpio operations thru the vtable. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] chardev: GPIO for SCx200 & PC-8736x: add gpio-ops vtableJim Cromie
Abstract the gpio operations into a new nsc_gpio_ops vtable. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] chardev: GPIO for SCx200 & PC-8736x: add 'v' command to device-fileJim Cromie
Add a new driver command: 'v' which calls gpio_dump() on the pin. The output goes to the log, like all other INFO messages in the original driver. Giving the user control over the feedback they 'need' is construed to be a user-friendly feature, and allows us (later) to dial down many INFO messages to DEBUG log-level. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] chardev: GPIO for SCx200 & PC-8736x: add platforn_device for use w ↵Jim Cromie
dev_dbg Add a platform-device to scx200_gpio, and use its struct device dev member (ie: devp) in dev_dbg() once. There are 2 alternatives here (Im soliciting guidance/commentary): - use isa_device, if/when its added to the kernel. - alter scx200.c to EXPORT_GPL its private devp so that both scx200_gpio, and the (to be added) nsc_gpio module can use it. Since the available devp is in 'grandparent', this seems like too much 'action at a distance'. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] chardev: GPIO for SCx200 & PC-8736x: modernize driver init to 2.6 apiJim Cromie
Adopt many modern 2.6 coding practices, ala LDD3, chapter 3. Changes are limited to initialization calls from module init, ie: cdev_init, cdev_add, *_chrdev_region, mkdev. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] chardev: GPIO for SCx200 & PC-8736x: whitespace pre-cleanJim Cromie
GPIO SUPPORT FOR SCx200 & PC8736x The patch-set reworks the 2.4 vintage scx200_gpio driver for modern 2.6, and refactors GPIO support to reuse it in a new driver for the GPIO on PC-8736x chips. Its handy for the Soekris.com net-4801, which has both chips. These patches have been seen recently on Kernel-Mentors, and then Kernel-Newbies ML, where Jesper Juhl kindly reviewed it. His feedback has been incorporated. Thanks Jesper ! Its also gone to soekris-tech@soekris.com for possible testing by linux folks, I've gotten 1 promise so far. Theyre mostly BSD folk over there, but we'll see.. Device-file & Sysfs The driver preserves the existing device-file interface, including the write/cmd set, but adds v to 'view' the pin-settings & configs by inducing, via gpio_dump(), a dev_info() call. Its a fairly crappy way to get status, but it sticks to the syslog approach, conservatively. Allowing users to voluntarily trigger logging is good, it gives them a familiar way to confirm their app's control & use of the pins, and I've thus reduced the pin-mode-updates from dev_info to dev_dbg. I've recently bolted on a proto sysfs interface for both new drivers. Im not including those patches here; they (the patch + doc-pre-patch) are still quite raw (and unreviewed on KNML), and since they 'invent' a convention for GPIO, a proper vetting is needed. Since this patchset is much bigger than my previous ones, Id like to keep things simpler, and address it 1st, before bolting on more stuff. The driver-split The Geode CPU and the PC-87366 Super-IO chip have GPIO units which share a common pin-architecture (same pin features, with same bits controlling), but with different addressing mechanics and port organizations. The vintage driver expresses the pin capabilities with pin-mode commands [OoPpTt],etc that change the pin configurations, and since the 2 chips share pin-arch, we can reuse the read(), write() commands, once the implementation is suitably adjusted. The patchset adds a vtable: struct nsc_gpio_ops, to abstract the existing gpio operations, then adjusts fileops.write() code to invoke operations via that vtable. Driver specific open()s set private_data to the vtable so its available for use by write(). The vtable gets the gpio_dump() too, since its user-friendly, and (could be construed as) part of the current device-file interface. To support use of dev_dbg() in write() & _dump(), the vtable gets a dev ptr too, set by both scx200 & pc8736x _gpio drivers. heres how the pins are presented in syslog: [ 1890.176223] scx200_gpio.0: io00: 0x0044 TS OD PUE EDGE LO DEBOUNCE [ 1890.287223] scx200_gpio.0: io01: 0x0003 OE PP PUD EDGE LO nsc_gpio.c: new file is new home of several file-ops methods, which are modified to get their vtable from filp->private_data, and use it where needed. scx200_gpio.c: keeps some of its existing gpio routines, but now wires them up via the vtable (they're invoked by nsc_gpio.c:nsc_gpio_write() thru this vtable). A driver-spcific open() initializes filp->private_data with the vtable. Once the split is clean, and the scx200_gpio driver is working, we copy and modify the function and variable names, and rework the access-method bodies for the different addressing scheme. Heres a working overview of the patchset: # series file for GPIO # Spring Cleaning gpio-scx/patch.preclean # scripts/Lindent fixes, editor-ctrl comments # API Modernization gpio-scx/patch.api26 # what I learned from LDD3 gpio-scx/patch.platform-dev-2 # get pdev, support for dev_dbg() gpio-scx/patch.unsigned-minor # fix to match std practice # Debuggability gpio-scx/patch.dump-diet # shrink gpio_dump() gpio-scx/patch.viewpins # add new 'command' to call dump() gpio-scx/patch.init-refactor # pull shadow-register init to sub # Access-Abstraction (add vtable) gpio-scx/patch.access-vtable # introduce nsg_gpio_ops vtable, w dump gpio-scx/patch.vtable-calls # add & use the vtable in scx200_gpio gpio-scx/patch.nscgpio-shell # add empty driver for common-fops # move code under abstraction gpio-scx/patch.migrate-fops # move file-ops methods from scx200_gpio gpio-scx/patch.common-dump # mv scx200.c:scx200_gpio_dump() to nsc_gpio.c gpio-scx/patch.add-pc8736x-gpio # add new driver, like old, w chip adapt # gpio-scx/patch.add-DEBUG # enable all dev_dbg()s # Cleanups # finish printk -> dev_dbg() etc gpio-scx/patch.pdev-pc8736x # new drvr needs pdev too, gpio-scx/patch.devdbg-nscgpio # add device to 'vtable', use in dev_dbg() # gpio-scx/patch.pin-config-view # another 'c' 'command' # gpio-scx/quiet-getset # take out excess dbg stuff (pretty quiet now) gpio-scx/patch.shadow-current # imitate scx200_gpio's shadow regs in pc87* # post KMentors-post patches .. gpio-scx/patch.mutexes # use mutexes for config-locks gpio-scx/patch.viewpins-values # extend dump to obsolete separate 'c' cmd gpio-scx/patch.kconfig # add stuff for kbuild # TBC # combine api26 with pdev, which is just one step. # merge c&v commands to single do-all-fn # delay viewpins, dump-diet should also un-ifdef it too. diff.sys-gpio-rollup-1 This patch: Removed editor format-control comments, and used scripts/Lindent to clean up whitespace, then deleted the bogus chunks :-( Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] cpu hotplug: make cpu_notifier related notifier blocks __cpuinit onlyChandra Seetharaman
Make notifier_blocks associated with cpu_notifier as __cpuinitdata. __cpuinitdata makes sure that the data is init time only unless CONFIG_HOTPLUG_CPU is defined. Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Cc: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] cpu hotplug: make [un]register_cpu_notifier init time onlyChandra Seetharaman
CPUs come online only at init time (unless CONFIG_HOTPLUG_CPU is defined). So, cpu_notifier functionality need to be available only at init time. This patch makes register_cpu_notifier() available only at init time, unless CONFIG_HOTPLUG_CPU is defined. This patch exports register_cpu_notifier() and unregister_cpu_notifier() only if CONFIG_HOTPLUG_CPU is defined. Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Cc: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] cpu hotplug: revert init patch submitted for 2.6.17Chandra Seetharaman
In 2.6.17, there was a problem with cpu_notifiers and XFS. I provided a band-aid solution to solve that problem. In the process, i undid all the changes you both were making to ensure that these notifiers were available only at init time (unless CONFIG_HOTPLUG_CPU is defined). We deferred the real fix to 2.6.18. Here is a set of patches that fixes the XFS problem cleanly and makes the cpu notifiers available only at init time (unless CONFIG_HOTPLUG_CPU is defined). If CONFIG_HOTPLUG_CPU is defined then cpu notifiers are available at run time. This patch reverts the notifier_call changes made in 2.6.17 Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Cc: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] rtc: fix idr lockingSonny Rao
We need to serialize access to the global rtc_idr even in this error path. Signed-off-by: Sonny Rao <sonny@burdell.org> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] stallion clean upAlan Cox
There are two locking sets involved. One locks the board mappings and the other is the tty open/close locking. The low level code was clearly designed to be ported to OS's with spin locks already so pretty much comes out in the wash Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] IPMI: use schedule in kthreadakpm@osdl.org
Corey Minyard <minyard@acm.org> The kthread used to speed up polling for IPMI was using udelay in its busy-wait polling loop when the lower-level state machine told it to do a short delay. This just used CPU and didn't help scheduling, thus causing bad problems with other tasks. Call schedule() instead. Signed-off-by: Corey Minyard <minyard@acm.org> Acked-by: Matt Domsch <Matt_Domsch@dell.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] tty: fix TCSBRK commentPaul Fulghum
Fix TCSBRK comment to prevent confusion or accidental removal. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] RTC: Add a comment for ENOIOCTLCMD in ds1553_rtc_ioctlAtsushi Nemoto
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] spin/rwlock init cleanupsIngo Molnar
locking init cleanups: - convert " = SPIN_LOCK_UNLOCKED" to spin_lock_init() or DEFINE_SPINLOCK() - convert rwlocks in a similar manner this patch was generated automatically. Motivation: - cleanliness - lockdep needs control of lock initialization, which the open-coded variants do not give - it's also useful for -rt and for lock debugging in general Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] update two drivers for poison.hRandy Dunlap
Update two drivers to use poison.h. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] add poison.h and patch primary usersRandy Dunlap
Localize poison values into one header file for better documentation and easier/quicker debugging and so that the same values won't be used for multiple purposes. Use these constants in core arch., mm, driver, and fs code. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Acked-by: Matt Mackall <mpm@selenic.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] node hotplug: register cpu: remove node structKAMEZAWA Hiroyuki
With Goto-san's patch, we can add new pgdat/node at runtime. I'm now considering node-hot-add with cpu + memory on ACPI. I found acpi container, which describes node, could evaluate cpu before memory. This means cpu-hot-add occurs before memory hot add. In most part, cpu-hot-add doesn't depend on node hot add. But register_cpu(), which creates symbolic link from node to cpu, requires that node should be onlined before register_cpu(). When a node is onlined, its pgdat should be there. This patch-set holds off creating symbolic link from node to cpu until node is onlined. This removes node arguments from register_cpu(). Now, register_cpu() requires 'struct node' as its argument. But the array of struct node is now unified in driver/base/node.c now (By Goto's node hotplug patch). We can get struct node in generic way. So, this argument is not necessary now. This patch also guarantees add cpu under node only when node is onlined. It is necessary for node-hot-add vs. cpu-hot-add patch following this. Moreover, register_cpu calculates cpu->node_id by cpu_to_node() without regard to its 'struct node *root' argument. This patch removes it. Also modify callers of register_cpu()/unregister_cpu, whose args are changed by register-cpu-remove-node-struct patch. [Brice.Goglin@ens-lyon.org: fix it] Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: Ashok Raj <ashok.raj@intel.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Brice Goglin <Brice.Goglin@ens-lyon.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] Register sysfs file for hotplugged new nodeYasunori Goto
When new node becomes enable by hot-add, new sysfs file must be created for new node. So, if new node is enabled by add_memory(), register_one_node() is called to create it. In addition, I386's arch_register_node() and a part of register_nodes() of powerpc are consolidated to register_one_node() as a generic_code(). This is tested by Tiger4(IPF) with node hot-plug emulation. Signed-off-by: Keiichiro Tokunaga <tokuanga.keiich@jp.fujitsu.com> Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] pgdat allocation for new node add (get node id by acpi)Yasunori Goto
This is to find node id from acpi's handle of memory_device in DSDT. _PXM for the new node can be found by acpi_get_pxm() by using new memory's handle. So, node id can be found by pxm_to_nid_map[]. This patch becomes simpler than v2 of node hot-add patch. Because old add_memory() function doesn't have node id parameter. So, kernel must find its handle by physical address via DSDT again. But, v3 just give node id to add_memory() now. Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: "Brown, Len" <len.brown@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] pgdat allocation for new node add (specify node id)Yasunori Goto
Change the name of old add_memory() to arch_add_memory. And use node id to get pgdat for the node at NODE_DATA(). Note: Powerpc's old add_memory() is defined as __devinit. However, add_memory() is usually called only after bootup. I suppose it may be redundant. But, I'm not well known about powerpc. So, I keep it. (But, __meminit is better at least.) Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: "Brown, Len" <len.brown@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] Catch notification of memory add event of ACPI via container driver. ↵Yasunori Goto
(avoid redundant call add_memory) When acpi_memory_device_init() is called at boottime to register struct memory acpi_memory_device, acpi_bus_add() are called via acpi_driver_attach(). But it also calls ops->start() function. It is called even if the memory blocks are initialized at early boottime. In this case add_memory() return -EEXIST, and the memory blocks becomes INVALID state even if it is normal. This is patch to avoid calling add_memory() for already available memory. [akpm@osdl.org: coding cleanups] Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: "Brown, Len" <len.brown@intel.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] Catch notification of memory add event of ACPI via container driver. ↵Yasunori Goto
(register start func for memory device) This is a patch to call add_memroy() when notify reaches for new node's add event. When new node is added, notify of ACPI reaches container device which means the node. Container device driver calls acpi_bus_scan() to find and add belonging devices (which means cpu, memory and so on). Its function calls add and start function of belonging devices's driver. Howevever, current memory hotplug driver just register add function to create sysfs file for its memory. But, acpi_memory_enable_device() is not called because it is considered just the case that notify reaches memory device directly. So, if notify reaches container device nothing can call add_memory(). This is a patch to create start function which calls add_memory(). add_memory() can be called by this when notify reaches container device. [akpm@osdl.org: coding cleanups] Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: "Brown, Len" <len.brown@intel.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] acpi memory hotplug cannot manage _CRS with plural resourecesKAMEZAWA Hiroyuki
Current acpi memory hotplug just looks into the first entry of resources in _CRS. But, _CRS can contain plural resources. So, if _CRS contains plural resoureces, acpi memory hot add cannot add all memory. With this patch, acpi memory hotplug can deal with Memory Device, whose _CRS contains plural resources. Tested on ia64 memory hotplug test envrionment (not emulation, uses alpha version firmware which supports dynamic reconfiguration of NUMA.) Note: Microsoft's Windows Server 2003 requires big (>4G)resoureces to be divided into small (<4G) resources. looks crazy, but not invalid. (See http://www.microsoft.com/whdc/system/pnppwr/hotadd/hotaddmem.mspx) For this reason, a firmware vendor who supports Windows writes plural resources in a _CRS even if they are contiguous. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: "Brown, Len" <len.brown@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[MTD] NAND: Select chip before checking write protect statusThomas Gleixner
The other way round works not really well with boards which have a static NAND chipselect. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>