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path: root/drivers/pcmcia
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2009-11-10Merge branch '7xx-iosplit-plat' with omap-fixesTony Lindgren
2009-11-03PM / yenta: Split resume into early and late parts (rev. 4)Rafael J. Wysocki
Commit 0c570cdeb8fdfcb354a3e9cd81bfc6a09c19de0c (PM / yenta: Fix cardbus suspend/resume regression) caused resume to fail on systems with two CardBus bridges. While the exact nature of the failure is not known at the moment, it can be worked around by splitting the yenta resume into an early part, executed during the early phase of resume, that will only resume the socket and power it up if there was a card in it during suspend, and a late part, executed during "regular" resume, that will carry out all of the remaining yenta resume operations. Fixes http://bugzilla.kernel.org/show_bug.cgi?id=14334, which is a listed regression from 2.6.31. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Dominik Brodowski <linux@dominikbrodowski.net> Reported-by: Stephen J. Gowdy <gowdy@cern.ch> Tested-by: Jose Marino <braket@hotmail.com>
2009-10-24pcmcia: do not load the pd6729 driver if io_base is NULLKomuro
The CL-PD6729 chip in some docking station is not initialized properly under Linux. In that case, do not load the pd6729 driver. [Dominik Brodowski <linux@dominikbrodowski.net>: spelling fixes, check for NULL not 0] Signed-off-by: Komuro <komurojun-mbn@nifty.com> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-10-20pcmcia: Fix possible printk format warningsWolfram Sang
Fix more possible warnings introduced by my commit 1d80766554322236aee50d6023693b3210b9cf38 as fixed by the previous patch from Randy Dunlap. Not tested due to no hardware. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-10-20omap: headers: Move remaining headers from include/mach to include/platTony Lindgren
Move the remaining headers under plat-omap/include/mach to plat-omap/include/plat. Also search and replace the files using these headers to include using the right path. This was done with: #!/bin/bash mach_dir_old="arch/arm/plat-omap/include/mach" plat_dir_new="arch/arm/plat-omap/include/plat" headers=$(cd $mach_dir_old && ls *.h) omap_dirs="arch/arm/*omap*/ \ drivers/video/omap \ sound/soc/omap" other_files="drivers/leds/leds-ams-delta.c \ drivers/mfd/menelaus.c \ drivers/mfd/twl4030-core.c \ drivers/mtd/nand/ams-delta.c" for header in $headers; do old="#include <mach\/$header" new="#include <plat\/$header" for dir in $omap_dirs; do find $dir -type f -name \*.[chS] | \ xargs sed -i "s/$old/$new/" done find drivers/ -type f -name \*omap*.[chS] | \ xargs sed -i "s/$old/$new/" for file in $other_files; do sed -i "s/$old/$new/" $file done done for header in $(ls $mach_dir_old/*.h); do git mv $header $plat_dir_new/ done Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-10-19pcmcia: do not try to store more than 4 version stringsDominik Brodowski
... for struct pcmcia_device only provides for 4 anyway. Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-10-19pcmcia: pccard_read_tuple and TUPLE_RETURN_COMMON cleanupDominik Brodowski
pccard_read_tuple(), which is only used by the PCMCIA core, should handle TUPLE_RETURN_COMMON more sensibly: If a specific function (which may be 0) is requested, set tuple.Attributes = 0 as was done in all PCMCIA drivers. If, however, BIND_FN_ALL is requested, return the "common" tuple. As to the callers of pccard_read_tuple(): - All calls to pcmcia_validate_cis() had set the "function" parameter to BIND_FN_ALL. Therefore, remove the "function" parameter and make the parameter to pccard_read_tuple explicit. - Calls to CISTPL_VERS_1 and CISTPL_MANFID now set BIND_FN_ALL. This was already the case for calls to CISTPL_LONGLINK_MFC. Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-10-17pcmcia: properly close previous dev_printk if kzalloc fails in do_io_probeFrans Pop
Signed-off-by: Frans Pop <elendil@planet.nl> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-10-17pcmcia: fix controller printk format warningsRandy Dunlap
Fix new pcmcia printk format warnings: [This has now moved from linux-next to mainline. Originally sent 2009-SEP-17.] drivers/pcmcia/i82365.c:1055: warning: format '%#x' expects type 'unsigned int', but argument 6 has type 'phys_addr_t' drivers/pcmcia/i82365.c:1055: warning: format '%#x' expects type 'unsigned int', but argument 7 has type 'phys_addr_t' drivers/pcmcia/tcic.c:734: warning: format '%#x' expects type 'unsigned int', but argument 6 has type 'phys_addr_t' drivers/pcmcia/tcic.c:734: warning: format '%#x' expects type 'unsigned int', but argument 7 has type 'phys_addr_t' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-10-02Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: (25 commits) ARM: 5728/1: Proper prefetch abort handling on ARMv6 and ARMv7 ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() ARM: 5740/1: fix valid_phys_addr_range() range check ARM: 5739/1: ARM: allow empty ATAG_CORE ARM: 5735/1: sa1111: CodingStyle cleanups ARM: 5738/1: Correct TCM documentation ARM: 5734/1: arm: fix compilation of entry-common.S for older CPUs ARM: 5733/1: fix bcmring compile error ARM: 5732/1: remove redundant include file ARM: 5731/2: Fix U300 generic GPIO, remove ifdefs from MMCI v3 ARM: Ensure do_cache_op takes mmap_sem ARM: Fix __cpuexit section mismatch warnings ARM: Don't allow highmem on SMP platforms without h/w TLB ops broadcast ARM: includecheck fix: mach-davinci, board-dm365-evm.c ARM: Remove unused CONFIG SA1100_H3XXX ARM: Fix warning: unused variable 'highmem' ARM: Fix warning: #warning syscall migrate_pages not implemented ARM: Fix SA11x0 clocksource warning ARM: Fix SA1100 Neponset serial section mismatch ARM: Fix SA1100 Assabet/Neponset PCMCIA section mismatch warnings ...
2009-09-30MIPS: BCM63xx: Add PCMCIA & Cardbus support.Maxime Bizon
Signed-off-by: Maxime Bizon <mbizon@freebox.fr> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-29PM / yenta: Fix cardbus suspend/resume regressionRafael J. Wysocki
Since 2.6.29 the PCI PM core have been restoring the standard configuration registers of PCI devices in the early phase of resume. In particular, PCI devices without drivers have been handled this way since commit 355a72d75b3b4f4877db4c9070c798238028ecb5 (PCI: Rework default handling of suspend and resume). Unfortunately, this leads to post-resume problems with CardBus devices which cannot be accessed in the early phase of resume, because the sockets they are on have not been woken up yet at that point. To solve this problem, move the yenta socket resume to the early phase of resume and, analogously, move the suspend of it to the late phase of suspend. Additionally, remove some unnecessary PCI code from the yenta socket's resume routine. Fixes http://bugzilla.kernel.org/show_bug.cgi?id=13092, which is a post-2.6.28 regression. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reported-by: Florian <fs-kernelbugzilla@spline.de> Cc: stable@kernel.org
2009-09-29PM / PCMCIA: Drop second argument of pcmcia_socket_dev_suspend()Rafael J. Wysocki
pcmcia_socket_dev_suspend() doesn't use its second argument, so it may be dropped safely. This change is necessary for the subsequent yenta suspend/resume fix. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: stable@kernel.org
2009-09-28ARM: Fix SA1100 Assabet/Neponset PCMCIA section mismatch warningsRussell King
WARNING: drivers/pcmcia/sa1100_cs.o(.data+0x48): Section mismatch in reference from the variable sa11x0_pcmcia_hw_init to the function .init.text:pcmcia_assabet_init() The variable sa11x0_pcmcia_hw_init references the function __init pcmcia_assabet_init() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: drivers/pcmcia/sa1111_cs.o(.text+0x298): Section mismatch in reference from the function pcmcia_probe() to the function .init.text:pcmcia_neponset_init() The function pcmcia_probe() references the function __init pcmcia_neponset_init(). This is often because pcmcia_probe lacks a __init annotation or the annotation of pcmcia_neponset_init is wrong. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Sam Ravnborg <sam@ravnborg.org>
2009-09-24Merge branch 'origin' into for-linusRussell King
Conflicts: MAINTAINERS
2009-09-22Merge branch 'master' into for-linusRussell King
2009-09-22pcmcia: cleanup/fixup patch for sa1100_jornada_pcmcia driverKristoffer Ericson
Clean up the /drivers/pcmcia/sa1100_jornada.c file with respect to formatting. It also changes a build warning into a code comment (since its a pain to watch every build and havent seen any problems with driver in 3.5years). Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22pcmcia: switch /proc/bus/pccard/drivers to seq_fileAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22pcmcia: yenta: add missing __devexit markingMike Frysinger
The remove member of the pci_driver yenta_cardbus_driver uses __devexit_p(), so the remove function itself should be marked with __devexit. Even more so considering the probe function is marked with __devinit. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Cc: Daniel Ritz <daniel.ritz-ml@swissonline.ch> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pcmcia-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pcmcia-2.6: pcmcia: document return value of pcmcia_loop_config pcmcia: dtl1_cs: fix pcmcia_loop_config logic pcmcia: drop non-existant includes pcmcia: disable prefetch/burst for OZ6933 pcmcia: fix incorrect argument order to list_add_tail() pcmcia: drivers/pcmcia/pcmcia_resource.c: Remove unnecessary semicolons pcmcia: Use phys_addr_t for physical addresses pcmcia: drivers/pcmcia: Make static
2009-09-15pcmcia: document return value of pcmcia_loop_configWolfram Sang
Hopefully it will be harder to get it wrong now. Also fix an unneeded initialization while we are here. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15pcmcia: drop non-existant includesWolfram Sang
See http://lists.infradead.org/pipermail/linux-pcmcia/2009-April/006109.html Reported-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15pcmcia: disable prefetch/burst for OZ6933Tomas Kovacik
Problems have been reported [1], so disable prefetch/burst, to be on the safe side. [1] http://www.mail-archive.com/linux-pcmcia@lists.infradead.org/msg02048.html Signed-off-by: Tomáš Kováčik <nail@nodomain.sk> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15pcmcia: fix incorrect argument order to list_add_tail()Wolfram Sang
Commit a56bc69a182f501582557af7fad5bc882b1c856c fixed a wrong usage of list_add_tail() within store_new_id() for PCI. Port the fix to PCMCIA, which adapted this function from PCI. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15pcmcia: drivers/pcmcia/pcmcia_resource.c: Remove unnecessary semicolonsJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-15pcmcia: drivers/pcmcia: Make staticRoel Kluin
Sparse asked whether these could be static. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-10[ARM] pxa: update pcmcia/pxa2xx_base.c to use 'struct dev_pm_ops'Mike Rapoport
Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-09-10[ARM] pxa/palm: fix possibly uninitialized variable in PalmTC-pcmciaMarek Vasut
This 'problem' actually cant cause a failure of the driver, but it's always better to be correct. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-09-10[ARM] pxa: Palm Tungsten|C PCMCIA supportMarek Vasut
This patch adds support for PCMCIA socket found in Palm Tungsten|C. There is Prism3 based WiFi card hardwired to that socket. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-09-09yenta: Use pci_claim_resourceMatthew Wilcox
Instead of open-coding pci_find_parent_resource and request_resource, just call pci_claim_resource. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-07-08Remove multiple KERN_ prefixes from printk formatsJoe Perches
Commit 5fd29d6ccbc98884569d6f3105aeca70858b3e0f ("printk: clean up handling of log-levels and newlines") changed printk semantics. printk lines with multiple KERN_<level> prefixes are no longer emitted as before the patch. <level> is now included in the output on each additional use. Remove all uses of multiple KERN_<level>s in formats. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-03Update Yoichi Yuasa's e-mail addressYoichi Yuasa
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-06-16Merge branch 'akpm'Linus Torvalds
* akpm: (182 commits) fbdev: bf54x-lq043fb: use kzalloc over kmalloc/memset fbdev: *bfin*: fix __dev{init,exit} markings fbdev: *bfin*: drop unnecessary calls to memset fbdev: bfin-t350mcqb-fb: drop unused local variables fbdev: blackfin has __raw I/O accessors, so use them in fb.h fbdev: s1d13xxxfb: add accelerated bitblt functions tcx: use standard fields for framebuffer physical address and length fbdev: add support for handoff from firmware to hw framebuffers intelfb: fix a bug when changing video timing fbdev: use framebuffer_release() for freeing fb_info structures radeon: P2G2CLK_ALWAYS_ONb tested twice, should 2nd be P2G2CLK_DAC_ALWAYS_ONb? s3c-fb: CPUFREQ frequency scaling support s3c-fb: fix resource releasing on error during probing carminefb: fix possible access beyond end of carmine_modedb[] acornfb: remove fb_mmap function mb862xxfb: use CONFIG_OF instead of CONFIG_PPC_OF mb862xxfb: restrict compliation of platform driver to PPC Samsung SoC Framebuffer driver: add Alpha Channel support atmel-lcdc: fix pixclock upper bound detection offb: use framebuffer_alloc() to allocate fb_info struct ... Manually fix up conflicts due to kmemcheck in mm/slab.c
2009-06-16use printk_once() in several placesMinchan Kim
There are some places to be able to use printk_once instead of hard coding. Signed-off-by: Minchan Kim <minchan.kim@gmail.com> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: David S. Miller <davem@davemloft.net> Cc: Ingo Molnar <mingo@elte.hu> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-15pcmcia: remove driver_data direct access of struct deviceGreg Kroah-Hartman
In the near future, the driver core is going to not allow direct access to the driver_data pointer in struct device. Instead, the functions dev_get_drvdata() and dev_set_drvdata() should be used. These functions have been around since the beginning, so are backwards compatible with all older kernel versions. Cc: linux-pcmcia@lists.infradead.org Cc: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15firmware: pcmcia/ds: prepare for FIRMWARE_NAME_MAX removalSamuel Ortiz
We're going to remove the FIRMWARE_NAME_MAX definition in order to avoid any firmware name length restriction. With the FIRMWARE_NAME_MAX removal, the ds.c reference becomes useless as we dont need to check for the firmware name length anymore. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-05[ARM] pxa/stargate2: add support for Compact Flash/PCMCIAJonathan Cameron
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-04-23[ARM] 5458/1: pcmcia: pxa2xx-sharpsl: check if we do have Scoop configDmitry Baryshkov
Check if we really have Scoop config, otherwice we can get a nice Oops during probe. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-04-02[ARM] 5442/1: pxa/cm-x255: fix reverse RDY gpios in PCMCIA driverMike Rapoport
fix reverse RDY gpios in PCMCIA driver Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-03-28Merge branch 'origin' into develRussell King
Conflicts: sound/soc/pxa/pxa2xx-i2s.c
2009-03-28Merge branch 'devel' of ↵Russell King
git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel
2009-03-28[ARM] pxa: fix the bad assumption that PCMCIA sockets always start with 0Marek Vasut
Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-03-25[ARM] acorn,ebsa110,footbridge,integrator,sa1100: Convert asm/io.h to linux/io.hRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-03-24platform driver: fix incorrect use of 'platform_bus_type' with 'struct ↵Ming Lei
device_driver' This patch fixes the bug reported in http://bugzilla.kernel.org/show_bug.cgi?id=11681. "Lots of device drivers register a 'struct device_driver' with the '.bus' member set to '&platform_bus_type'. This is wrong, since the platform_bus functions expect the 'struct device_driver' to be wrapped up in a 'struct platform_driver' which provides some additional callbacks (like suspend_late, resume_early). The effect may be that platform_suspend_late() uses bogus data outside the device_driver struct as a pointer pointer to the device driver's suspend_late() function or other hard to reproduce failures."(Lothar Wassmann) Signed-off-by: Ming Lei <tom.leiming@gmail.com> Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24pcmcia: struct device - replace bus_id with dev_name(), dev_set_name()Kay Sievers
Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: linux-pcmcia@lists.infradead.org Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
2009-03-15[ARM] 5426/1: h3600: remove clr_h3600_egpio/set_h3600_egpio helpersDmitry Artamonow
Replace all occurences with assign_h3600_egpio. Also simplify code a bit by replacing couple of if-else statements with one-line equivalents. Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-03-09[ARM] pxa: move pxa2xx chip selects definitions out of pxa-regs.hEric Miao
The definitions of PXA_CS<x>_PHYS are really PXA2xx specific and should be moved out of pxa-regs.h. As an illustration, the PXA3xx static chip selects definitions are added into pxa3xx-regs.h. Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-03-09[ARM] pxa: move PCMCIA definitions out of pxa-regs.h into pxa2xx_base.cEric Miao
Move the processor specific initialization (largely resources initialization) out of soc_common_drv_pcmcia_probe() into dedicated sa11xx_drv_pcmcia_probe() and __pxa2xx_drv_pcmcia_probe(). By doing this, we are now able to move the PCMCIA related definitions out of pxa-regs.h and back into pxa2xx_base.c. As a result, remove that reference of _PCMCIA1IO in arch/arm/mach-pxa/viper.c. Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-03-09[ARM] pxa: remove unnecessary #include of pxa-regs.h and hardware.hEric Miao
pxa-regs.h and hardware.h are not intended for use directly in driver code, remove those unnecessary references. Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-01-13powerpc: Change u64/s64 to a long long integer typeIngo Molnar
Convert arch/powerpc/ over to long long based u64: -#ifdef __powerpc64__ -# include <asm-generic/int-l64.h> -#else -# include <asm-generic/int-ll64.h> -#endif +#include <asm-generic/int-ll64.h> This will avoid reoccuring spurious warnings in core kernel code that comes when people test on their own hardware. (i.e. x86 in ~98% of the cases) This is what x86 uses and it generally helps keep 64-bit code 32-bit clean too. [Adjusted to not impact user mode (from paulus) - sfr] Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>