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2008-04-24x86: PAT phys_mem_access_prot_allowed for dev/mem mmapvenkatesh.pallipadi@intel.com
Introduce phys_mem_access_prot_allowed(), which checks whether the mapping is possible, without any conflicts and returns success or failure based on that. phys_mem_access_prot() by itself does not allow failure case. This ability to return error is needed for PAT where we may have aliasing conflicts. x86 setup __HAVE_PHYS_MEM_ACCESS_PROT and move x86 specific code out of /dev/mem into arch specific area. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-24x86: PAT avoid aliasing in /dev/mem read/writevenkatesh.pallipadi@intel.com
Add xlate and unxlate around /dev/mem read/write. This sets up the mapping that can be used for /dev/mem read and write without aliasing worries. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-24devmem: add range_is_allowed() check to mmap of /dev/memVenki Pallipadi
Earlier patch that introduced CONFIG_NONPROMISC_DEVMEM, did the range_is_allowed() check only for read and write. Add range_is_allowed() check to mmap of /dev/mem as well. Changes the paramaters of range_is_allowed() to pfn and size to handle more than 32 bits of physical address on 32 bit arch cleanly. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-24x86: introduce /dev/mem restrictions with a config optionArjan van de Ven
This patch introduces a restriction on /dev/mem: Only non-memory can be read or written unless the newly introduced config option is set. The X server needs access to /dev/mem for the PCI space, but it doesn't need access to memory; both the file permissions and SELinux permissions of /dev/mem just make X effectively super-super powerful. With the exception of the BIOS area, there's just no valid app that uses /dev/mem on actual memory. Other popular users of /dev/mem are rootkits and the like. (note: mmap access of memory via /dev/mem was already not allowed since a really long time) People who want to use /dev/mem for kernel debugging can enable the config option. The restrictions of this patch have been in the Fedora and RHEL kernels for at least 4 years without any problems. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-22Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: [PATCH] get rid of __exit_files(), __exit_fs() and __put_fs_struct() [PATCH] proc_readfd_common() race fix [PATCH] double-free of inode on alloc_file() failure exit in create_write_pipe() [PATCH] teach seq_file to discard entries [PATCH] umount_tree() will unhash everything itself [PATCH] get rid of more nameidata passing in namespace.c [PATCH] switch a bunch of LSM hooks from nameidata to path [PATCH] lock exclusively in collect_mounts() and drop_collected_mounts() [PATCH] move a bunch of declarations to fs/internal.h
2008-04-22Fix cardbus resource allocationLinus Torvalds
Commit 884525655d07fdee9245716b998ecdc45cdd8007 ("PCI: clean up resource alignment management") didn't set the alignment information for the cardbus window resources, causing their subsequent allocations to fail miserably with a message like yenta_cardbus 0000:15:00.0: device not available because of BAR 7 [100:1ff] collisions yenta_cardbus: probe of 0000:15:00.0 failed with error -16 or similar. This fixes it and clarifies the code a bit too (we used to have to use the insane PCI bridge alignment logic that put the alignment in the "start" field, this makes it use the slightly easier-to-understand size-based alignment, and allows us to set the resource start to zero until it gets allocated). Reported-and-tested-by: Jeff Chua <jeff.chua.linux@gmail.com> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-22bus_remove_device: be more careful about incomplete initializationRafael J. Wysocki
Prevent bus_remove_device() from crashing if dev->knode_bus has not been initialized before it's called. This can happen if the device_add() ended up breaking out early due to an error, for example. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-22Relax check on adding children of suspended devicesRafael J. Wysocki
Do not refuse to actually register children of suspended devices, but still warn about attempts to do that. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-22[PATCH] get rid of __exit_files(), __exit_fs() and __put_fs_struct()Al Viro
The only reason to have separated __...() for those was to keep them inlined for local users in exit.c. Since Alexey removed the inline on those, there's no reason whatsoever to keep them around; just collapse with normal variants. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-22[PATCH] proc_readfd_common() race fixAl Viro
Since we drop the rcu_read_lock inside the loop, we can't assume that files->fdt will remain unchanged (and not freed) between iterations. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-22[PATCH] double-free of inode on alloc_file() failure exit in create_write_pipe()Al Viro
Duh... Fortunately, the bug is quite recent (post-2.6.25) and, embarrassingly, mine ;-/ Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-22Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] run drivers/misc/sgi-xp through scripts/checkpatch.pl [IA64] run rest drivers/misc/sgi-xp through scripts/Lindent [IA64] run some drivers/misc/sgi-xp through scripts/Lindent [IA64] move XP and XPC to drivers/misc/sgi-xp [IA64] minor irq handler cleanups [IA64] simplify notify hooks in mca.c [IA64] do notify DIE_MCA_MONARCH_PROCESS for each monarchs [IA64] disable interrupts on exit of ia64_trace_syscall
2008-04-22fs: use loff_t type instead of long longDavid Sterba
Use offset type consistently. Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-22Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6: SELinux fixups needed for preemptable RCU from -rt SELinux: no BUG_ON(!ss_initialized) in selinux_clone_mnt_opts
2008-04-22[IA64] run drivers/misc/sgi-xp through scripts/checkpatch.plDean Nelson
Addressed issues raised by scripts/checkpatch.pl. Removed unnecessary curly braces. Eliminated uses of volatiles and use of kernel_thread() and daemonize(). Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-04-22[IA64] run rest drivers/misc/sgi-xp through scripts/LindentDean Nelson
Ran patches through scripts/Lindent (part 2). Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-04-22[IA64] run some drivers/misc/sgi-xp through scripts/LindentDean Nelson
Ran patches through scripts/Lindent (part 1). Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-04-22[IA64] move XP and XPC to drivers/misc/sgi-xpDean Nelson
Move XPC and XPNET from arch/ia64/sn/kernel to drivers/misc/sgi-xp. Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-04-22Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: i2c: Fix platform driver hotplug/coldplug i2c: New driver for the SuperH Mobile I2C bus controller i2c/scx200_acb: Don't use 0 as NULL pointer i2c-bfin-twi: Fix mismatch in add timer and delete timer i2c-bfin-twi: Just let i2c-bfin-twi driver depends on BLACKFIN i2c-bfin-twi: Use simpler comment headers and strip out information that is maintained in the scm's log i2c-bfin-twi: Cleanup driver descriptions, versions and some module useful information i2c-bfin-twi: Add missing pin mux operation i2c-bfin-twi: Add platform_resource interface to support multi-port TWI controllers i2c-bfin-twi: Add repeat start feature to avoid break of a bundle of i2c master xfer operation i2c: Remove trailing whitespaces in busses/Kconfig i2c: Replace remaining __FUNCTION__ occurrences i2c: Renesas SH7760 I2C master driver i2c-dev: Split i2cdev_ioctl i2c-ibm_iic: Support building as an of_platform driver i2c-ibm_iic: Change the log levels i2c: Add platform driver on top of the new pca-algorithm i2c-algo-pca: Extend for future drivers i2c-algo-pca: Remove trailing whitespaces and unnecessary UTF i2c: Remove the algorithm drivers from the config menu
2008-04-22kernel-doc: fix sched.c missing parameterRandy Dunlap
Add missing kernel-doc in kernel/sched.c: Warning(linux-2.6.25-git3//kernel/sched.c:7044): No description found for parameter 'span' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-22Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm: dlm: linux/{dlm,dlm_device}.h: cleanup for userspace dlm: common max length definitions dlm: move plock code from gfs2 dlm: recover nodes that are removed and re-added dlm: save master info after failed no-queue request dlm: make dlm_print_rsb() static dlm: match signedness between dlm_config_info and cluster_set
2008-04-22Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: Suppress hidinput for Samsung IR control HID: remove 60x GTCO devices from blacklist HID: export headers properly HID: WiseGroup 866 Dual Joypad needs output reports quirk HID: ThrustMaster FF driver is no longer experimental HID: Logitech diNovo Mini pad support HID: fix race between open() and disconnect() in usbhid HID: make hid_input_field and usbhid_modify_dquirk static HID: pass numbered reports properly to hidraw HID: fix misplaced rdesc quirk HID: force feedback driver for Logitech Rumblepad 2 HID: move wait from hid to usbhid HID: make function from dbg_hid HID: fix sparse warnings HID: only dump report traffic with debug level 2 HID: patch to add NOGET for DMI/Acomdata HID: Sunplus Wireless Desktop needs report descriptor fixup HID: quirk for MS Wireless Desktop Receiver (model 1028) HID: fixup fullspeed interval on highspeed Afatech DVB-T IR kbd HID: fix build failure in hiddev_ioctl with gcc 3.2
2008-04-22Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6: (41 commits) udf: use crc_itu_t from lib instead of udf_crc udf: Fix compilation warnings when UDF debug is on udf: Fix bug in VAT mapping code udf: Add read-only support for 2.50 UDF media udf: Fix handling of multisession media udf: Mount filesystem read-only if it has pseudooverwrite partition udf: Handle VAT packed inside inode properly udf: Allow loading of VAT inode udf: Fix detection of VAT version udf: Silence warning about accesses beyond end of device udf: Improve anchor block detection udf: Cleanup anchor block detection. udf: Move processing of virtual partitions udf: Move filling of partition descriptor info into a separate function udf: Improve error recovery on mount udf: Cleanup volume descriptor sequence processing udf: fix anchor point detection udf: Remove declarations of arrays of size UDF_NAME_LEN (256 bytes) udf: Remove checking of existence of filename in udf_add_entry() udf: Mark udf_process_sequence() as noinline ...
2008-04-22fix brd allocation flagsPetr Tesarik
While looking at the implementation of the Ram backed block device driver, I stumbled across a write-only local variable, which makes little sense, so I assume it should actually work like this: Signed-off-by: Petr Tesarik <ptesarik@suse.cz> Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-22i2c: Fix platform driver hotplug/coldplugKay Sievers
Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is prefixed with "platform:". Add MODULE_ALIAS() to the hotpluggable I2C platform drivers, to allow module auto loading. [ db: add some more drivers ] Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c: New driver for the SuperH Mobile I2C bus controllerMagnus Damm
This is V5 of the SuperH Mobile I2C Controller Driver. A simple Master only driver for the I2C block included in processors such as sh7343, sh7722 and sh7723. Tested on a sh7722 MigoR using a rs5c732b rtc. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c/scx200_acb: Don't use 0 as NULL pointerAdrian Bunk
Don't use 0 as NULL pointer. Spotted by sparse. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c-bfin-twi: Fix mismatch in add timer and delete timerHans Schillstrom
Move init_completion to just before i2c transfer. http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3385 Signed-off-by: Hans Schillstrom <hans.schillstrom@shlsys.com> Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c-bfin-twi: Just let i2c-bfin-twi driver depends on BLACKFINBryan Wu
Simply use "depends on BLACKFIN" (which is technically correct) and just document which machines have the device. Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c-bfin-twi: Use simpler comment headers and strip out information that is ↵Mike Frysinger
maintained in the scm's log Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c-bfin-twi: Cleanup driver descriptions, versions and some module useful ↵Bryan Wu
information Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c-bfin-twi: Add missing pin mux operationBryan Wu
Blackfin TWI controller hardware pin should be requested from GPIO port controller Before BF54x, there is no need to do this. But as long as BF54x and BF52x are supported by this generic driver, the missing pin mux operation should be added. Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c-bfin-twi: Add platform_resource interface to support multi-port TWI ↵Bryan Wu
controllers - Dynamic alloc the resource of TWI driver data according to board information - TWI register read/write accessor based on dynamic regs_base - Support TWI0/TWI1 for BF54x Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c-bfin-twi: Add repeat start feature to avoid break of a bundle of i2c ↵Sonic Zhang
master xfer operation - Create a new mode TWI_I2C_MODE_REPEAT. - No change to smbus operation. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c: Remove trailing whitespaces in busses/KconfigWolfram Sang
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c: Replace remaining __FUNCTION__ occurrencesHarvey Harrison
__FUNCTION__ is gcc-specific, use __func__. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c: Renesas SH7760 I2C master driverManuel Lauss
Driver for I2C interfaces in master mode on SH7760. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c-dev: Split i2cdev_ioctlJean Delvare
Split the handling of the I2C_RDWR and I2C_SMBUS ioctls to their own functions. This limits the stack usage, saves one level of indentation and makes the code more readable. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c-ibm_iic: Support building as an of_platform driverSean MacLennan
This patch allows the i2c-ibm_iic driver to be built either as an ocp driver or an of_platform driver. This allows it to run under the powerpc arch but maintains backward compatibility with the ppc arch. Signed-off-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c-ibm_iic: Change the log levelsSean MacLennan
Change the log levels based on feedback from linxppc-dev. Signed-off-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c: Add platform driver on top of the new pca-algorithmWolfram Sang
Tested on a blackfin. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c-algo-pca: Extend for future driversWolfram Sang
The separation between algorithm and adapter was unsharp at places. This was partly hidden by the fact, that the ISA-driver allowed just one instance and had all private data in static variables. This patch makes neccessary preparations to add a platform driver on top of the algorithm, while still supporting ISA. Note: Due to lack of hardware, the ISA-driver could not be tested except that it builds. Concerning the core struct i2c_algo_pca_data: - A private data field was added, all hardware dependant data may go here. Similar to other algorithms, now a pointer to this data is passed to the adapter's functions. In order to make as less changes as possible to the ISA-driver, it leaves the private data empty and still only uses its static variables. - A "reset_chip" function pointer was added; such a functionality must come from the adapter, not the algorithm. - use a variable "i2c_clock" instead of a function pointer "get_clock", allowing for write access to a default in case a wrong value was supplied. In the algorithm-file: - move "i2c-pca-algo.h" into "linux/i2c-algo-pca.h" - now using per_instance timeout values (i2c_adap->timeout) - error messages specify the device, not only the driver name - restructure initialization to easily support "i2c_add_numbered_adapter" - drop "retries" and "own" (i2c address) as they were unused (The state-machine for I2C-communication was not touched.) In the ISA-driver: - adapt to new algorithm Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c-algo-pca: Remove trailing whitespaces and unnecessary UTFWolfram Sang
Remove trailing whitespaces to make further patches more readable. Also remove an unnecessary UTF-char for simplicity ("us" for microseconds is fine enough). Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22i2c: Remove the algorithm drivers from the config menuJean Delvare
The algorithm drivers are helper drivers that are selected automatically as needed. There's no point in listing them in the config menu, it can only confuse users and waste their time. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-22[IA64] minor irq handler cleanupsJeff Garzik
- remove unused 'irq' argument from pfm_do_interrupt_handler() - remove pointless cast to void* - add KERN_xxx prefix to printk() - remove braces around singleton C statement - in tioce_provider.c, start tioce_dma_consistent() and tioce_error_intr_handler() function declarations in column 0 This change's main purpose is to prepare for the patchset in jgarzik/misc-2.6.git#irq-remove, that explores removal of the never-used 'irq' argument in each interrupt handler. Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-04-22[IA64] simplify notify hooks in mca.cHidetoshi Seto
There are many notify_die() and almost all take same style with ia64_mca_spin(). This patch defines macros and replace them all, to reduce lines and to improve readability. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-04-22[IA64] do notify DIE_MCA_MONARCH_PROCESS for each monarchsHidetoshi Seto
There are 3 hooks in MCA handler, but this DIE_MCA_MONARCH_PROCESS event does not notified other than for the first monarch. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-04-22[IA64] disable interrupts on exit of ia64_trace_syscallHidetoshi Seto
While testing with CONFIG_VIRT_CPU_ACCOUNTING=y, I found that I occasionally get very huge system time in some threads. So I dug the issue and finally noticed that it was caused because of an interrupt which interrupt in the following window: > [arch/ia64/kernel/entry.S: (!CONFIG_PREEMPT && CONFIG_VIRT_CPU_ACCOUNTING)] > > ENTRY(ia64_leave_syscall) > : > (pUStk) rsm psr.i > cmp.eq pLvSys,p0=r0,r0 // pLvSys=1: leave from syscall > (pUStk) cmp.eq.unc p6,p0=r0,r0 // p6 <- pUStk > .work_processed_syscall: > adds r2=PT(LOADRS)+16,r12 > (pUStk) mov.m r22=ar.itc // fetch time at leave > adds r18=TI_FLAGS+IA64_TASK_SIZE,r13 > ;; > <<< window: from here >>> > (p6) ld4 r31=[r18] // load current_thread_info()->flags > ld8 r19=[r2],PT(B6)-PT(LOADRS) > adds r3=PT(AR_BSPSTORE)+16,r12 > ;; > mov r16=ar.bsp > ld8 r18=[r2],PT(R9)-PT(B6) > (p6) and r15=TIF_WORK_MASK,r31 // any work other than TIF_SYSCALL_TRACE? > ;; > ld8 r23=[r3],PT(R11)-PT(AR_BSPSTORE) > (p6) cmp4.ne.unc p6,p0=r15, r0 // any special work pending? > (p6) br.cond.spnt .work_pending_syscall > ;; > ld8 r9=[r2],PT(CR_IPSR)-PT(R9) > ld8 r11=[r3],PT(CR_IIP)-PT(R11) > (pNonSys) break 0 // bug check: we shouldn't be here if pNonSys is TRUE! > ;; > invala > <<< window: to here >>> > rsm psr.i | psr.ic // turn off interrupts and interruption collection If pUStk is true, it means we are going to return user mode, hence we fetch ar.itc to get time at leave from system. It seems that it is not possible to interrupt the window if pUStk is true, because interrupts are disabled early. And also disabling interrupt makes sense because it is safe for referring current_thread_info()->flags. However interrupting the window while pUStk is true was possible. The route was: ia64_trace_syscall -> .work_pending_syscall_end -> .work_processed_syscall Only in case entering the window from this route, interrupts are enabled during in the window even if pUStk is true. I suppose interrupts must be disabled here anyway if pUStk is true. I'm not sure but afraid that what kind of bad effect were there, other than crazy system time which I found. FYI, there was a commit 6f6d75825dc49b082906b84537b4df28293c2977 that points out a bug at same point(exit of ia64_trace_syscall) in 2006. It can be said that there was an another bug. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-04-22HID: Suppress hidinput for Samsung IR controlRobert Schedel
Samsung USB remotes (0419:0001) report six keys via standard HID usage pages (arrow keys, OK, Power). Kernel 2.6.25 maps those to input events (in addition to the hiddev report). The remaining 43 keys are reported via proprietary HID report page and therefore by hiddev only. Applications using hiddev and input device might process the 6 standard keys twice. To avoid this, the input device will be suppressed for the Samsung remote with a quirk entry, forcing to use the hiddev device only. LIRC already contains the proper support. Signed-off-by: Robert Schedel <r.schedel@yahoo.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-04-22HID: remove 60x GTCO devices from blacklistJiri Kosina
Jeremy Robertson reports that GTCO engineers made a mistake and we don't need 0x60x GTCO product ids blacklisted. This mostly reverts dda3fd35, but leaves PID 0x1007 intact. Reported-by: Jeremy Roberson <jeremy.roberson@einstruction.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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