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* asus-laptop: document the moduleCorentin Chary2009-08-281-0/+258
| | | | | Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* asus-laptop: Add "calculator" hotkeyCorentin Chary2009-08-281-0/+1
| | | | | | | Found on UX50V. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* asus-laptop: Add suport for another "Media" keyCorentin Chary2009-08-281-0/+1
| | | | | Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* asus-laptop: handle keyboard backlight keysCorentin Chary2009-08-281-0/+2
| | | | | | | | Add support for the Fn+F3/Fn+F4 keys and map them as KEY_KBDILLUMUP and KEY_KBDILLUMDOWN. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* asus-laptop: Add support for Keyboard backlightCorentin Chary2009-08-281-2/+77
| | | | | | | | | | | | | | | | | | | Add support for keyboard backlight found in Asus U50VG. The SMC driver for the Apples does it via LED. To be consistent with that we create /sys/class/leds/asus::kbd_backlight/ to control the keyboard backlight. SLKB and GLKB are used to get/set the backlight. On the U50VG is supports 4 brightness level, but this may change with other models. SLKB take a 8 bit integer where the higher bit is used to toggle the backlight, and the over 7 bits control the brightness level. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* asus-laptop: set maximum led brightnessCorentin Chary2009-08-281-6/+7
| | | | | | | | Set the right maximum brightness which is one, because they can only be on or off. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* asus-laptop: Map X50R hotkeysCorentin Chary2009-08-281-0/+3
| | | | | | | Map some new hotkeys found on X50R. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* asus-laptop: Add *_led_get() functionsCorentin Chary2009-08-281-0/+8
| | | | | | | | | Add support for getting led brightness directly from the hardware. Currently we don't need it, but it is needed to support keyboard backlight/led. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* asus-laptop: Show HRWS in infos and fix output formatCorentin Chary2009-08-281-2/+12
| | | | | | | | | | Show HRWS in /sys/platform/devices/asus-laptop/infos. HRWS is a bitfield used to get information about Hardware available in the laptop. Also change sprintf format from 0x%04x to %#x. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* led: document sysfs interfaceCorentin Chary2009-08-282-4/+33
| | | | | | | | | Also fix Documentation/led-class.txt, the acceptable range of values for brightness is 0-max_brightness, not 0-255. Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* video/lcd: document sysfs interfaceCorentin Chary2009-08-281-0/+23
| | | | | | | | | Date and KernelVersion may be wrong because the lcd interface was introduced before git initial import. Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* video/backlight: document sysfs interfaceCorentin Chary2009-08-281-0/+36
| | | | | | | | | Date and KernelVersion may be wrong because the backlight interface was introduced before git initial import. Cc:Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* eeepc-laptop: document sysfs interfaceCorentin Chary2009-08-281-0/+50
| | | | | Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* eeepc-laptop: add rfkill support for the Wimax in ASUS Eee PC 1000HGCorentin Chary2009-08-281-0/+13
| | | | | Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* eeepc-laptop: switch to dev_pm_opsAlan Jenkins2009-08-281-6/+19
| | | | | | | | | | | | | | | | | | | | | This also involves switching the resume handler from the acpi device to the platform device. Using the more fine grained handlers allows two improvements: 1. We only need to recheck rfkill state after resume from hibernation. 2. The wireless LED workaround accounts for up to 1.1s out of 1.7s resuming devices (when wireless is enabled). We can limit the workaround to thaw(), so that it only delays suspend to disk. The workaround is only likely to help when hibernation is aborted. Suspend to ram cannot be aborted by the user. Device suspend errors may well happen before eeepc-laptop would even be frozen. Suspend errors which happen after that could be pretty funky anyway. Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* eeepc-laptop: correct the description of the hibernation abort bugAlan Jenkins2009-08-281-5/+4
| | | | | | | | | Actually it is only the LED which is affected. The bios bug does not disable the wifi. Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* eeepc-laptop: check the 3G rfkill state on resumeAlan Jenkins2009-08-281-0/+3
| | | | | | | | | All the rfkill devices are treated as "persistent", 3G is no exception. This means their state may change over hibernation. Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* eeepc-laptop: remove redundant rfkill_set_sw_state in resume handlerAlan Jenkins2009-08-281-2/+1
| | | | | | | | rfkill_set_sw_state() will already be called by eeepc_rfkill_hotplug(). Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* eeepc-laptop: make input device a child of the platform deviceAlan Jenkins2009-08-281-29/+41
| | | | | | | | | | | | | | | | Sysfs showed the ehotk input device as a "virtual" device - lies! The input device is provided by a physical device, the eeepc platform. This requires that we move the creation of the input device to come after platform device is created. Input initialization is moved from ehotk_check() [sic] to a new function called eeepc_input_init(). This brings the input device into line with the other eeepc-laptop devices. Also, refuse to load if we fail to register the input device. Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* eeepc-laptop: fix ordering of init and exit functionsAlan Jenkins2009-08-281-61/+59
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. input and backlight devices were registered after acpi notifications are enabled. This left a window where eeepc_hotk_notify() might find these devices in an inconsistent (half-initialized) state. -> Move all device registration into eeepc_hotk_add(), which is called before enabling acpi notifications. 2. input and backlight devices were unregistered before acpi notifications are disabled. This left a window where eeepc_hotk_notify() might find these devices in an inconsistent (half-destroyed) state. -> Move all device unregistration into eeepc_hotk_remove(), which is called after disabling acpi notifications. 3. The acpi driver was not freed if an error occured further down in eeepc_laptop_init(). -> The rest of eeepc_laptop_init() has been moved to eeepc_hotk_add(), so this is no longer a problem. 4. The acpi driver was unregistered before the platform driver. This left a window where a sysfs access could attempt to read the ehotk structure after it had been freed by eeepc_hotk_remove(). -> The acpi driver is now unregistered as the last step in eeepc_laptop_exit(), so this is no longer a problem. Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* eeepc-laptop: fix pci hotplug race on load and unloadAlan Jenkins2009-08-281-32/+45
| | | | | | | | | | | | | | | | | Wifi rfkill state changes can race with pci hotplug cleanup. A simple fix is to refresh the hotplug state just before deregistering the pci hotplug slot. There is also potential for a hotplug notification to fire too early during setup, while the structures it uses are still being initialised. (This could only happen if the BIOS performs hotplug itself; a bug triggered by removing the battery while hibernated). Avoid this by registering the notifier later. The same refresh mechanism is used to handle rfkill state changes which can now race with registration. Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* eeepc-laptop: use a mutex to serialize pci hotplug (resume vs. notify)Alan Jenkins2009-08-281-8/+13
| | | | | | | | | | | | Commit d0265f0 "eeepc-laptop: fix hot-unplug on resume" used a workqueue to protect pci hotplug against multiple simultaneous calls during resume. It seems to work, but a mutex would be more appropriate. This is in preparation to fix the potential pci hotplug race on unload. Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* eeepc-laptop: don't touch the pci slot if it was claimed by a different driverAlan Jenkins2009-08-281-5/+8
| | | | | | | | | | | | The whole point of registering as a PCI hotplug driver was to prevent conflict with pciehp. At the moment it happens to work because eeepc-laptop is loaded first, but it doesn't work the other way round. If pciehp is loaded first then we fail to claim the slot - we need to respect this and not handle hotplug events. Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* Linux 2.6.31-rc8v2.6.31-rc8Linus Torvalds2009-08-271-1/+1
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* module: workaround duplicate section namesJames Bottomley2009-08-271-1/+2
| | | | | | | | | | | | | | | | | | | | | The root cause is a duplicate section name (.text); is this legal? [ Amerigo Wang: "AFAIK, yes." ] However, there's a problem with commit 6d76013381ed28979cd122eb4b249a88b5e384fa in that if you fail to allocate a mod->sect_attrs (in this case it's null because of the duplication), it still gets used without checking in add_notes_attrs() This should fix it [ This patch leaves other problems, particularly the sections directory, but recent parisc toolchains seem to produce these modules and this prevents a crash and is a minimal change -- RR ] Signed-off-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Tested-by: Helge Deller <deller@gmx.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* module: fix BUG_ON() for powerpc (and other function descriptor archs)Rusty Russell2009-08-271-2/+4
| | | | | | | | | The rarely-used symbol_put_addr() needs to use dereference_function_descriptor on powerpc. Reported-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* xenfb: connect to backend before registering fbJeremy Fitzhardinge2009-08-271-4/+4
| | | | | | | | | | | | | | As soon as the framebuffer is registered, our methods may be called by the kernel. This leads to a crash as xenfb_refresh() gets called before we have the irq. Connect to the backend before registering our framebuffer with the kernel. [ Fixes bug http://bugzilla.kernel.org/show_bug.cgi?id=14059 ] Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notifyLinus Torvalds2009-08-272-85/+177
|\ | | | | | | | | | | | | | | * 'for-linus' of git://git.infradead.org/users/eparis/notify: inotify: Ensure we alwasy write the terminating NULL. inotify: fix locking around inotify watching in the idr inotify: do not BUG on idr entries at inotify destruction inotify: seperate new watch creation updating existing watches
| * inotify: Ensure we alwasy write the terminating NULL.Eric W. Biederman2009-08-271-7/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before the rewrite copy_event_to_user always wrote a terqminating '\0' byte to user space after the filename. Since the rewrite that terminating byte was skipped if your filename is exactly a multiple of event_size. Ouch! So add one byte to name_size before we round up and use clear_user to set userspace to zero like /dev/zero does instead of copying the strange nul_inotify_event. I can't quite convince myself len_to_zero will never exceed 16 and even if it doesn't clear_user should be more efficient and a more accurate reflection of what the code is trying to do. Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com> Signed-off-by: Eric Paris <eparis@redhat.com>
| * inotify: fix locking around inotify watching in the idrEric Paris2009-08-271-10/+40
| | | | | | | | | | | | | | | | | | The are races around the idr storage of inotify watches. It's possible that a watch could be found from sys_inotify_rm_watch() in the idr, but it could be removed from the idr before that code does it's removal. Move the locking and the refcnt'ing so that these have to happen atomically. Signed-off-by: Eric Paris <eparis@redhat.com>
| * inotify: do not BUG on idr entries at inotify destructionEric Paris2009-08-271-2/+31
| | | | | | | | | | | | | | | | | | If an inotify watch is left in the idr when an fsnotify group is destroyed this will lead to a BUG. This is not a dangerous situation and really indicates a programming bug and leak of memory. This patch changes it to use a WARN and a printk rather than killing people's boxes. Signed-off-by: Eric Paris <eparis@redhat.com>
| * inotify: seperate new watch creation updating existing watchesEric Paris2009-08-271-69/+103
| | | | | | | | | | | | | | | | There is nothing known wrong with the inotify watch addition/modification but this patch seperates the two code paths to make them each easy to verify as correct. Signed-off-by: Eric Paris <eparis@redhat.com>
* | lmb: Remove __init from lmb_end_of_DRAM()Benjamin Herrenschmidt2009-08-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | We call lmb_end_of_DRAM() to test whether a DMA mask is ok on a machine without IOMMU, but this function is marked as __init. I don't think there's a clean way to get the top of RAM max_pfn doesn't appear to include highmem or I missed (or we have a bug :-) so for now, let's just avoid having a broken 2.6.31 by making this function non-__init and we can revisit later. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2009-08-2710-134/+107
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: 9p: update documentation pointers 9p: remove unnecessary v9fses->options which duplicates the mount string net/9p: insulate the client against an invalid error code sent by a 9p server 9p: Add missing cast for the error return value in v9fs_get_inode 9p: Remove redundant inode uid/gid assignment 9p: Fix possible regressions when ->get_sb fails. 9p: Fix v9fs show_options 9p: Fix possible memleak in v9fs_inode_from fid. 9p: minor comment fixes 9p: Fix possible inode leak in v9fs_get_inode. 9p: Check for error in return value of v9fs_fid_add
| * | 9p: update documentation pointersEric Van Hensbergen2009-08-171-0/+3
| | | | | | | | | | | | Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * | 9p: remove unnecessary v9fses->options which duplicates the mount stringAbhishek Kulkarni2009-08-173-35/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The mount options string is saved in sb->s_options. This patch removes the redundant duplicating of the mount options. Also, since we are not displaying anything special in show options, we replace v9fs_show_options with generic_show_options for now. Signed-off-by: Abhishek Kulkarni <adkulkar@umail.iu.edu> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * | net/9p: insulate the client against an invalid error code sent by a 9p serverAbhishek Kulkarni2009-08-172-7/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | A looney tunes server sending an invalid error code (which is !IS_ERR_VALUE) can result in a client oops. So fix it by adding a check and converting unknown or invalid error codes to -ESERVERFAULT. Signed-off-by: Abhishek Kulkarni <adkulkar@umail.iu.edu> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * | 9p: Add missing cast for the error return value in v9fs_get_inodeAbhishek Kulkarni2009-08-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Cast the error return value (ENOMEM) in v9fs_get_inode() to its correct type using ERR_PTR. Signed-off-by: Abhishek Kulkarni <adkulkar@umail.iu.edu> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * | 9p: Remove redundant inode uid/gid assignmentAbhishek Kulkarni2009-08-171-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | Remove a redundant update of inode's i_uid and i_gid after v9fs_get_inode() since the latter already sets up a new inode and sets the proper uid and gid values. Signed-off-by: Abhishek Kulkarni <adkulkar@umail.iu.edu> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * | 9p: Fix possible regressions when ->get_sb fails.Abhishek Kulkarni2009-08-171-4/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ->get_sb can fail causing some badness. this patch fixes * clear sb->fs_s_info in kill_sb. * deactivate_locked_super() calls kill_sb (v9fs_kill_super) which closes the destroys the client, clunks all its fids and closes the v9fs session. Attempting to do it twice will cause an oops. Signed-off-by: Abhishek Kulkarni <adkulkar@umail.iu.edu> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * | 9p: Fix v9fs show_optionsAbhishek Kulkarni2009-08-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add the delimiter ',' before the options when they are passed and check if no option parameters are passed to prevent displaying NULL in /proc/mounts. Signed-off-by: Abhishek Kulkarni <adkulkar@umail.iu.edu> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * | 9p: Fix possible memleak in v9fs_inode_from fid.Abhishek Kulkarni2009-08-171-9/+4
| | | | | | | | | | | | | | | | | | | | | | | | Add missing p9stat_free in v9fs_inode_from_fid to avoid any possible leaks. Signed-off-by: Abhishek Kulkarni <adkulkar@umail.iu.edu> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * | 9p: minor comment fixesAbhishek Kulkarni2009-08-175-24/+21
| | | | | | | | | | | | | | | | | | | | | | | | Fix the comments -- mostly the improper and/or missing descriptions of function parameters. Signed-off-by: Abhishek Kulkarni <adkulkar@umail.iu.edu> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * | 9p: Fix possible inode leak in v9fs_get_inode.Abhishek Kulkarni2009-08-171-49/+56
| | | | | | | | | | | | | | | | | | | | | | | | Add a missing iput when cleaning up if v9fs_get_inode fails after returning a valid inode. Signed-off-by: Abhishek Kulkarni <adkulkar@umail.iu.edu> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * | 9p: Check for error in return value of v9fs_fid_addAbhishek Kulkarni2009-08-171-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | Check if v9fs_fid_add was successful or not based on its return value. Signed-off-by: Abhishek Kulkarni <adkulkar@umail.iu.edu> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* | | ipv4: make ip_append_data() handle NULL routing tableJulien TINNES2009-08-271-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a check in ip_append_data() for NULL *rtp to prevent future bugs in callers from being exploitable. Signed-off-by: Julien Tinnes <julien@cr0.org> Signed-off-by: Tavis Ormandy <taviso@sdf.lonestar.org> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | AFS: Stop readlink() on AFS crashing due to NULL 'file' ptrDavid Howells2009-08-271-3/+15
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | kAFS crashes when asked to read a symbolic link because page_getlink() passes a NULL file pointer to read_mapping_page(), but afs_readpage() expects a file pointer from which to extract a key. Modify afs_readpage() to request the appropriate key from the calling process's keyrings if a file struct is not supplied with one attached. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Anton Blanchard <anton@samba.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2009-08-262-16/+47
|\ \ | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: virtio: net refill on out-of-memory smc91x: fix compilation on SMP
| * | virtio: net refill on out-of-memoryRusty Russell2009-08-261-15/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | If we run out of memory, use keventd to fill the buffer. There's a report of this happening: "Page allocation failures in guest", Message-ID: <20090713115158.0a4892b0@mjolnir.ossman.eu> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | smc91x: fix compilation on SMPAlexey Dobriyan2009-08-261-1/+1
| | | | | | | | | | | | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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