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2010-08-05Merge branch 'drm-core-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (204 commits) agp: intel-agp: do not use PCI resources before pci_enable_device() agp: efficeon-agp: do not use PCI resources before pci_enable_device() drm: kill BKL from common code drm/kms: Simplify setup of the initial I2C encoder config. drm,io-mapping: Specify slot to use for atomic mappings drm/radeon/kms: only expose underscan on avivo chips drm/radeon: add new pci ids drm: Cleanup after failing to create master->unique and dev->name drm/radeon: tone down overchatty acpi debug messages. drm/radeon/kms: enable underscan option for digital connectors drm/radeon/kms: fix calculation of h/v scaling factors drm/radeon/kms/igp: sideport is AMD only drm/radeon/kms: handle the case of no active displays properly in the bandwidth code drm: move ttm global code to core drm drm/i915: Clear the Ironlake dithering flags when the pipe doesn't want it. drm/radeon/kms: make sure HPD is set to NONE on analog-only connectors drm/radeon/kms: make sure rio_mem is valid before unmapping it drm/agp/i915: trim stolen space to 32M drm/i915: Unset cursor if out-of-bounds upon mode change (v4) drm/i915: Unreference object not handle on creation ...
2010-08-05Merge branch 'kms-merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb * 'kms-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: kgdb,docs: Update the kgdb docs to include kms drm_fb_helper: Preserve capability to use atomic kms i915: when kgdb is active display compression should be off drm/i915: use new fb debug hooks drm: add KGDB/KDB support fb: add hooks to handle KDB enter/exit kgdboc: Add call backs to allow kernel mode switching vt,console,kdb: automatically set kdb LINES variable vt,console,kdb: implement atomic console enter/leave functions
2010-08-05Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds
* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6: (63 commits) of/platform: Register of_platform_drivers with an "of:" prefix of/address: Clean up function declarations of/spi: call of_register_spi_devices() from spi core code of: Provide default of_node_to_nid() implementation. of/device: Make of_device_make_bus_id() usable by other code. of/irq: Fix endian issues in parsing interrupt specifiers of: Fix phandle endian issues of/flattree: fix of_flat_dt_is_compatible() to match the full compatible string of: remove of_default_bus_ids of: make of_find_device_by_node generic microblaze: remove references to of_device and to_of_device sparc: remove references to of_device and to_of_device powerpc: remove references to of_device and to_of_device of/device: Replace of_device with platform_device in includes and core code of/device: Protect against binding of_platform_drivers to non-OF devices of: remove asm/of_device.h of: remove asm/of_platform.h of/platform: remove all of_bus_type and of_platform_bus_type references of: Merge of_platform_bus_type with platform_bus_type drivercore/of: Add OF style matching to platform bus ... Fix up trivial conflicts in arch/microblaze/kernel/Makefile due to just some obj-y removals by the devicetree branch, while the microblaze updates added a new file.
2010-08-05Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (79 commits) powerpc/8xx: Add support for the MPC8xx based boards from TQC powerpc/85xx: Introduce support for the Freescale P1022DS reference board powerpc/85xx: Adding DTS for the STx GP3-SSA MPC8555 board powerpc/85xx: Change deprecated binding for 85xx-based boards powerpc/tqm85xx: add a quirk for ti1520 PCMCIA bridge powerpc/tqm85xx: update PCI interrupt-map attribute powerpc/mpc8308rdb: support for MPC8308RDB board from Freescale powerpc/fsl_pci: add quirk for mpc8308 pcie bridge powerpc/85xx: Cleanup QE initialization for MPC85xxMDS boards powerpc/85xx: Fix booting for P1021MDS boards powerpc/85xx: Fix SWIOTLB initalization for MPC85xxMDS boards powerpc/85xx: kexec for SMP 85xx BookE systems powerpc/5200/i2c: improve i2c bus error recovery of/xilinxfb: update tft compatible versions powerpc/fsl-diu-fb: Support setting display mode using EDID powerpc/5121: doc/dts-bindings: update doc of FSL DIU bindings powerpc/5121: shared DIU framebuffer support powerpc/5121: move fsl-diu-fb.h to include/linux powerpc/5121: fsl-diu-fb: fix issue with re-enabling DIU area descriptor powerpc/512x: add clock structure for Video-IN (VIU) unit ...
2010-08-05vt,console,kdb: automatically set kdb LINES variableJason Wessel
The kernel console interface stores the number of lines it is configured to use. The kdb debugger can greatly benefit by knowing how many lines there are on the console for the pager functionality without having the end user compile in the setting or have to repeatedly change it at run time. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> CC: David Airlie <airlied@linux.ie> CC: Andrew Morton <akpm@linux-foundation.org>
2010-08-05vt,console,kdb: implement atomic console enter/leave functionsJesse Barnes
These functions allow the kernel debugger to save and restore the state of the system console. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Jason Wessel <jason.wessel@windriver.com> CC: David Airlie <airlied@linux.ie> CC: Andrew Morton <akpm@linux-foundation.org>
2010-08-05agp: intel-agp: do not use PCI resources before pci_enable_device()Kulikov Vasiliy
IRQ and resource[] may not have correct values until after PCI hotplug setup occurs at pci_enable_device() time. The semantic match that finds this problem is as follows: // <smpl> @@ identifier x; identifier request ~= "pci_request.*|pci_resource.*"; @@ ( * x->irq | * x->resource | * request(x, ...) ) ... *pci_enable_device(x) // </smpl> Signed-off-by: Kulikov Vasiliy <segooon@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-08-05agp: efficeon-agp: do not use PCI resources before pci_enable_device()Kulikov Vasiliy
IRQ and resource[] may not have correct values until after PCI hotplug setup occurs at pci_enable_device() time. The semantic match that finds this problem is as follows: // <smpl> @@ identifier x; identifier request ~= "pci_request.*|pci_resource.*"; @@ ( * x->irq | * x->resource | * request(x, ...) ) ... *pci_enable_device(x) // </smpl> Signed-off-by: Kulikov Vasiliy <segooon@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-08-04Merge branch 'for-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (48 commits) Documentation: update broken web addresses. fix comment typo "choosed" -> "chosen" hostap:hostap_hw.c Fix typo in comment Fix spelling contorller -> controller in comments Kconfig.debug: FAIL_IO_TIMEOUT: typo Faul -> Fault fs/Kconfig: Fix typo Userpace -> Userspace Removing dead MACH_U300_BS26 drivers/infiniband: Remove unnecessary casts of private_data fs/ocfs2: Remove unnecessary casts of private_data libfc: use ARRAY_SIZE scsi: bfa: use ARRAY_SIZE drm: i915: use ARRAY_SIZE drm: drm_edid: use ARRAY_SIZE synclink: use ARRAY_SIZE block: cciss: use ARRAY_SIZE comment typo fixes: charater => character fix comment typos concerning "challenge" arm: plat-spear: fix typo in kerneldoc reiserfs: typo comment fix update email address ...
2010-08-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (39 commits) random: Reorder struct entropy_store to remove padding on 64bits padata: update API documentation padata: Remove padata_get_cpumask crypto: pcrypt - Update pcrypt cpumask according to the padata cpumask notifier crypto: pcrypt - Rename pcrypt_instance padata: Pass the padata cpumasks to the cpumask_change_notifier chain padata: Rearrange set_cpumask functions padata: Rename padata_alloc functions crypto: pcrypt - Dont calulate a callback cpu on empty callback cpumask padata: Check for valid cpumasks padata: Allocate cpumask dependend recources in any case padata: Fix cpu index counting crypto: geode_aes - Convert pci_table entries to PCI_VDEVICE (if PCI_ANY_ID is used) pcrypt: Added sysfs interface to pcrypt padata: Added sysfs primitives to padata subsystem padata: Make two separate cpumasks padata: update documentation padata: simplify serialization mechanism padata: make padata_do_parallel to return zero on success padata: Handle empty padata cpumasks ...
2010-08-04Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (57 commits) Input: adp5588-keypad - fix NULL dereference in adp5588_gpio_add() Input: cy8ctmg110 - capacitive touchscreen support Input: keyboard - also match braille-only keyboards Input: adp5588-keys - export unused GPIO pins Input: xpad - add product ID for Hori Fighting Stick EX2 Input: adxl34x - fix leak and use after free Input: samsung-keypad - Add samsung keypad driver Input: i8042 - reset keyboard controller wehen resuming from S2R Input: synaptics - set min/max for finger width Input: synaptics - only report width on hardware that supports it Input: evdev - signal that device is writable in evdev_poll() Input: mousedev - signal that device is writable in mousedev_poll() Input: change input handlers to use bool when possible Input: document the MT event slot protocol Input: introduce MT event slots Input: usbtouchscreen - implement reset_resume Input: usbtouchscreen - implement runtime power management Input: usbtouchscreen - implement basic suspend/resume Input: Add ATMEL QT602240 touchscreen driver Input: fix signedness warning in input_set_keycode() ...
2010-08-04Merge branch 'master' into for-nextJiri Kosina
2010-08-04Merge commit 'gcl/next' into nextBenjamin Herrenschmidt
2010-08-02Merge branch 'next' into for-linusDmitry Torokhov
2010-08-01drm/agp/i915: trim stolen space to 32MJesse Barnes
Some BIOSes will claim a large chunk of stolen space. Unless we reclaim it, our aperture for remapping buffer objects will be constrained. So clamp the stolen space to 32M and ignore the rest. Fixes https://bugzilla.kernel.org/show_bug.cgi?id=15469 among others. Adding the ignored stolen memory back into the general pool using the memory hotplug code is left as an exercise for the reader. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Simon Farnsworth <simon.farnsworth@onelan.com> Tested-by: Artem S. Tashkinov <t.artem@mailcity.com> Signed-off-by: Eric Anholt <eric@anholt.net>
2010-08-01agp/intel: Destroy the scatterlist on allocation failureChris Wilson
A side-effect of being able to use custom page allocations with the sg_table is that it cannot reap the partially constructed scatterlist if fails to allocate a page. So we need to call sg_free_table() ourselves if sg_alloc_table() fails. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc Dave Airlie <airlied@redhat.com> Signed-off-by: Eric Anholt <eric@anholt.net>
2010-08-01Merge remote branch 'origin/master' into drm-intel-nextEric Anholt
This resolves the conflict in the EDP code, which has been rather popular to hack on recently. Conflicts: drivers/gpu/drm/i915/intel_dp.c
2010-08-01agp/intel: Add actual definitions of the Sandybridge PTE caching bits.Zhenyu Wang
2010-08-01agp/intel: Support the extended physical addressing bits on Sandybridge.Zhenyu Wang
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> [anholt: Split this patch out of a larger patch for Sandybridge fixes] Signed-off-by: Eric Anholt <eric@anholt.net>
2010-08-01intel_agp: Don't oops with zero stolen memoryOndrej Zary
When "onboard video memory" is set do "disabled" in BIOS on Asus P4P800-VM board (i865G), kernel oopses with memory corruption: https://bugs.freedesktop.org/show_bug.cgi?id=28430 Fix that by cleanly aborting the initialization. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Eric Anholt <eric@anholt.net>
2010-08-01of/address: Clean up function declarationsGrant Likely
This patch moves the declaration of of_get_address(), of_get_pci_address(), and of_pci_address_to_resource() out of arch code and into the common linux/of_address header file. This patch also fixes some of the asm/prom.h ordering issues. It still includes some header files that it ideally shouldn't be, but at least the ordering is consistent now so that of_* overrides work. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-07-31random: Reorder struct entropy_store to remove padding on 64bits Richard Kennedy
Re-order structure entropy_store to remove 8 bytes of padding on 64 bit builds, so shrinking this structure from 72 to 64 bytes and allowing it to fit into one cache line. Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk> Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-07-31Input: keyboard - also match braille-only keyboardsSamuel Thibault
drivers/char/keyboard.c also handles braille keys, so it should also match braille-only keyboards. Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-07-26Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel: drm/i915: add pipe A force quirks to i915 driver drm/i915: Fix panel fitting regression since 734b4157 drm/i915: fix deadlock in fb teardown drm/i915: don't free non-existent compressed llb on ILK+ agp/intel: Use the correct mask to detect i830 aperture size. drm/i915: disable FBC when more than one pipe is active drm/i915: Use the correct scanout alignment for fbcon. drm/i915: make sure eDP panel is turned on drm/i915: add PANEL_UNLOCK_REGS definition drm/i915: Make G4X-style PLL search more permissive drm/i915: Clear any existing dither mode prior to enabling spatial dithering drm/i915: handle shared framebuffers when flipping drm/i915: Explosion following OOM in do_execbuffer. gpu/drm/i915: Add a blacklist to omit modeset on LID open
2010-07-26agp/intel: Use the correct mask to detect i830 aperture size.Tim Gardner
BugLink: https://bugs.launchpad.net/bugs/597075 commit f1befe71fa7a79ab733011b045639d8d809924ad introduced a regression when detecting aperture size of some i915 adapters, e.g., those on the Intel Q35 chipset. The original report: https://bugzilla.kernel.org/show_bug.cgi?id=15733 The regression report: https://bugzilla.kernel.org/show_bug.cgi?id=16294 According to the specification found at http://intellinuxgraphics.org/VOL_1_graphics_core.pdf, the PCI config space register I830_GMCH_CTRL is a mirror of GMCH Graphics Control. The correct macro for isolating the aperture size bits is therefore I830_GMCH_GMS_MASK along with the attendant changes to the case statement. Signed-off-by: Tim Gardner <tim.gardner@canonical.com> Tested-by: Kees Cook <kees.cook@canonical.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Eric Anholt <eric@anholt.net> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net>
2010-07-26tpm_tis: fix subsequent suspend failuresRajiv Andrade
Fix subsequent suspends by issuing tpm_continue_selftest during resume. Otherwise, the tpm chip seems to be not fully initialized and will reject the save state command during suspend, thus preventing the whole system to suspend. Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16256 Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com> Cc: James Morris <jmorris@namei.org> Cc: Debora Velarde <debora@linux.vnet.ibm.com> Cc: David Safford <safford@watson.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Morris <jmorris@namei.org>
2010-07-24of/platform: remove all of_bus_type and of_platform_bus_type referencesGrant Likely
Both of_bus_type and of_platform_bus_type are just #define aliases for the platform bus. This patch removes all references to them and switches to the of_register_platform_driver()/of_unregister_platform_driver() API for registering. Subsequent patches will convert each user of of_register_platform_driver() into plain platform_drivers without the of_platform_driver shim. At which point the of_register_platform_driver()/of_unregister_platform_driver() functions can be removed. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: David S. Miller <davem@davemloft.net>
2010-07-21sysrq,kdb: Use __handle_sysrq() for kdb's sysrq functionJason Wessel
The kdb code should not toggle the sysrq state in case an end user wants to try and resume the normal kernel execution. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2010-07-20synclink: use ARRAY_SIZEKulikov Vasiliy
Change sizeof(x) / sizeof(*x) to ARRAY_SIZE(x). Signed-off-by: Kulikov Vasiliy <segooon@gmail.com> Acked-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-07-09hvc_console: use "*_console" nomenclature to avoid modpost warning.Chris Metcalf
The use of "hvc_con_driver" as the name for a file-static "struct console" with a ".setup" field pointing to an __init function causes a modpost warning, since a non-initdata structure points to init code. Using "hvc_console" as the name triggers the hacky "*_console" workaround in modpost to silence the warning, and is the same thing that most of the other console drivers already do. I made the same change in hvsi.c since I happened to notice it was likely to suffer from the same problem. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-07-05hwrng: n2-drv - remove casts from void*Kulikov Vasiliy
Remove unnesessary casts from void*. Signed-off-by: Kulikov Vasiliy <segooon@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-07-01Merge branch 'drm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (27 commits) drm/radeon/kms: remove rv100 bios connector quirk drm/radeon/kms/pm: fix power state indexing on igp chips in dynpm mode DRM / radeon / KMS: Fix hibernation regression related to radeon PM (was: Re: [Regression, post-2.6.34] Hibernation broken on machines with radeon/KMS and r300) drm/radeon/kms/igp: fix possible divide by 0 in bandwidth code (v2) drm/radeon: add quirk to make HP nx6125 laptop resume. drm/radeon/kms: add some missing regs to evergreen gpu init drm/radeon/kms: fix typos in evergreen command checker drm/radeon/kms: avoid oops on mac r4xx cards fb: fix colliding defines for fb flags. drm/radeon/kms: Force HDP_NONSURF to maximum size drm/radeon/kms: disable frac fb dividers for rs6xx drm/radeon/kms: don't read attempt to read bios from VRAM on unposted GPU. drm/radeon/kms: fix typo in evergreen_gpu_init drm/radeon/kms: return ret in cursor_set failure path drm/ttm: non pooled page allocation should have GFP_USER set drm/radeon/r100/r200: fix calculation of compressed cube maps drm/radeon/r200: handle more hw tex coord types drm/radeon/kms: CS checker texture fixes for r1xx/r2xx/r3xx drm/radeon: add fake RN50 table for powerpc drm/fb: Fix video= mode computation ...
2010-06-29ipmi: set schedule_timeout_wait() value back to oneMartin Wilck
Fix a regression introduced by ae74e823cb7d ("ipmi: add parameter to limit CPU usage in kipmid"). Some systems were seeing CPU usage go up dramatically with the recent changes to try to reduce timer usage in the IPMI driver. This was traced down to schedule_timeout_interruptible(1) being changed to schedule_timeout_interruptbile(0). Revert that part of the change. Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16147 Reported-by: Thomas Jarosch <thomas.jarosch@intra2net.com> Signed-off-by: Corey Minyard <cminyard@mvista.com> Tested-by: Thomas Jarosch <thomas.jarosch@intra2net.com> Cc: <stable@kernel.org> [2.6.34.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29ipmi: make sure drivers were registered before unregistering themMatthew Garrett
The ipmi code will never register a PCI or Open Firmware driver if a hardcoded device is provided by the user by providing device addresses via the module parameters. This can cause us to attempt to unregister a driver that was never registered, resulting in an oops. Keep track of registration in order to avoid this. Fixes a post-2.6.34 regression. Signed-off-by: Matthew Garrett <mjg@redhat.com> Acked-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-27Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: MAINTAINERS - Add an entry for the input MT protocol Input: wacom - fix serial number handling on Cintiq 21UX2 Input: fixup X86_MRST selects Input: sysrq - fix "stuck" SysRq mode Input: ad7877 - fix spi word size to 16 bit Input: pcf8574_keypad - fix off by one in pcf8574_kp_irq_handler()
2010-06-22Merge commit 'v2.6.35-rc3' into for-linusDmitry Torokhov
2010-06-15agp: add no warn since we have a fallback to vmalloc pathsDave Airlie
also drop the NORETRY we can probably nearly always satisfy order 1 allocs now, and again the vmalloc path is there. Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-06-15agp: drop vmalloc flag.Dave Airlie
Since the code that was too ugly to live is upstream, we can use it now, instead of rolling our own. Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-06-15TPM: ReadPubEK output struct fixRajiv Andrade
This patch adds a missing element of the ReadPubEK command output, that prevents future overflow of this buffer when copying the TPM output result into it. Prevents a kernel panic in case the user tries to read the pubek from sysfs. Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-06-09Input: sysrq - fix "stuck" SysRq modeDmitry Torokhov
This shoud fix the problem with SysRq mode staying half-way enabled and interfereing with normal PrtScrn operation after user presses ALT for the first time. Reported-and-tested-by: Éric Piel <E.A.B.Piel@tudelft.nl> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-06-06Revert "tty: fix a little bug in scrup, vt.c"Linus Torvalds
This reverts commit 962400e8fd29981a7b166e463dd143b6ac6a3e76, which was entirely bogus. The code used to multiply the character offset by "vc->vc_cols", and that's actually correct, because 'd' itself is an 'unsigned short'. So the pointer arithmetic already takes the size of a VGA character into account. Changing it to use vc_size_row (which is just "vc_cols" shifted up to take the size of the character into account) ends up multiplying with the VGA character size twice. This got reported as bugs for various other subsystems, because what it actually results in is writing the 16-bit vc_video_erase_char pattern (usually 0x0720: 0x07 is the default attribute, 0x20 is ASCII space) into some random other allocation. So Markus ended up reporting this as a ext4 bug, while to Torsten Kaiser it looked like a problem with KMS or libata. Jeff Chua saw it in different places. And finally - Justin Mattock had slab poisoning enabled, and saw it as a slab poison overwritten. And bisected and reverted this to verify the buggy commit. Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de> Reported-by: Torsten Kaiser <just.for.lkml@googlemail.com> Reported-by: Jeff Chua <jeff.chua.linux@gmail.com> Reported-by: Justin P. Mattock <justinmattock@gmail.com> Reported-bisected-and-tested-by: Justin P. Mattock <justinmattock@gmail.com> Acked-by: Dave Airlie <airlied@redhat.com> Cc: Frank Pan <frankpzh@gmail.com> Cc: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: serial: add support for various Titan PCI cards vt_ioctl: return -EFAULT on copy_from_user errors serial: altera_uart: Proper section for altera_uart_remove tty: fix a little bug in scrup, vt.c altera_uart: Simplify altera_uart_console_putc altera_uart: Don't take spinlock in already protected functions TTY/n_gsm: potential double lock serial: bfin_5xx: fix typo in IER check serial: bfin_5xx: IRDA is not affected by anomaly 05000230 serial_cs: add and sort IDs for serial and modem cards msm_serial: fix serial on trout
2010-06-04ramoops: add HAS_IOMEM dependencyHeiko Carstens
The driver fails to compile on s390: drivers/char/ramoops.c: In function 'ramoops_init': drivers/char/ramoops.c:122: error: implicit declaration of function 'ioremap' Since we won't make use of the driver anyway on s390 just let it depend on HAS_IOMEM. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Marco Stornelli <marco.stornelli@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-04vt_ioctl: return -EFAULT on copy_from_user errorsDan Carpenter
copy_from_user() returns the number of bytes remaining but we want to return a negative error code here. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04tty: fix a little bug in scrup, vt.cFrank Pan
The code uses vc->vc_cols instead of vc->vc_size_row by mistake, it will cause half of the region which is going to clear remain uncleared. The issue happens in background consoles, so it's hard to observe. Frank Pan Signed-off-by: Frank Pan <frankpzh@gmail.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04TTY/n_gsm: potential double lockDan Carpenter
In gsm_dlci_data_kick() we call gsm_dlci_data_sweep() with the "gsm->tx_lock" held so we can't lock it again inside gsm_dlci_data_sweep(). I removed that lock from and added one to gsmld_write_wakeup() instead. The sweep function is only called from those two places. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Alan Cox <alan@linux.intel.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-03Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/macio: Fix probing of macio devices by using the right of match table agp/uninorth: Fix oops caused by flushing too much powerpc/pasemi: Update MAINTAINERS file powerpc/cell: Fix integer constant warning powerpc/kprobes: Remove resume_execution() in kprobes powerpc/macio: Don't dereference pointer before null check
2010-06-03virtio: console: Fix crash when port is unplugged and blocked for writeAmit Shah
When a program that has a virtio port opened and blocked for a write operation, a port hot-unplug event will later led to a crash when SIGTERM was sent to the program. Fix that. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2010-06-03virtio: console: Fix crash when hot-unplugging a port and read is blockedAmit Shah
When removing a port we don't check if a program was blocked for read. This leads to a crash when SIGTERM is sent to the program after hot-unplugging the port. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2010-06-02agp/uninorth: Fix oops caused by flushing too muchPaul Mackerras
This fixes a sporadic oops at boot on G5 Power Macs. The table_end variable has the address of the last byte of the table. Adding on PAGE_SIZE means we flush too much, and if the page after the table is not mapped for any reason, the kernel will oops. Instead we add on 1 because flush_dcache_range() interprets its second argument as the first byte past the range to be flushed. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>