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2006-04-28[PATCH] suspend: Documentation update for IBM Thinkpad X30Antonino A. Daplas
As reported in Bugzilla Bug 6406, resume from S3 results in a blank screen. For the IBM Thinkpad X30 using vesafb as the console driver, successful resume from S3 requires option acpi_sleep=s3_bios,s3_mode. Update documentation. I would presume that, in any hardware, using vesafb as the console driver will require as a minimum s3_mode. Signed-off-by: Antonino Daplas <adaplas@pol.net> Cc: <igor47@uchicago.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] s390: new system callsMartin Schwidefsky
Add sys_set_robust_list, sys_get_robust_list, sys_splice, sys_sync_file and sys_tee system calls. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] s390: dasd device identifiersHorst Hummel
Generate new sysfs-attribute 'uid' that contains an device specific unique identifier. This can be used to identity multiple ALIASES of the same physical device (PAV). In addition the sysfs-attributes 'vendor' (containing the manufacturer of the device) and 'alias' (identify alias or base device) is added. This is first part of PAV support in LPAR (also valid on zVM). Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] s390: add read_mostly optimizationChristian Borntraeger
Add a read_mostly section and define __read_mostly to prevent cache line pollution due to writes for mostly read variables. In addition fix the incorrect alignment of the cache_line_aligned data section. s390 has a cacheline size of 256 bytes. Signed-off-by: Christian Borntraeger <cborntra@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] s390: instruction processing damage handlingHeiko Carstens
In case of an instruction processing damage (IPD) machine check in kernel mode the resulting action is always to stop the kernel. This is not necessarily the best solution since a retry of the failing instruction might succeed. Add logic to retry the instruction if no more than 30 instruction processing damage checks occured in the last 5 minutes. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] s390: segment operation error codesGerald Schaefer
Print a warning with the z/VM error code if segment_load, segment_type or segment_save fail to ease the problem determination. Signed-off-by: Gerald Schaefer <geraldsc@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] s390: tape 3590 changesStefan Bader
Added some changes that where proposed by Andrew Morton. Added 3592 device type. Signed-off-by: Stefan Bader <shbader@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] s390: futex atomic operationsMartin Schwidefsky
Add support for atomic futex operations. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] s390: fix slab debuggingChristian Borntraeger
With CONFIG_SLAB_DEBUG=y networking over qeth doesn't work. The problem is that the qib structure embedded in the qeth_irq structure needs an alignment of 256 but kmalloc only guarantees an alignment of 8. When using SLAB debugging the alignment of qeth_irq is not sufficient for the embedded qib structure which causes all users of qdio (qeth and zfcp) to stop working. Allocate qeth_irq structure with __get_free_page. That wastes a small amount of memory (~2500 bytes) per online adapter. Signed-off-by: Christian Borntraeger <cborntra@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] s390: dasd ioctl never returnsHorst Hummel
The dasd state machine is not designed to enable an unformatted device, since 'unformatted' is a final state. The BIODASDENABLE ioctl calls dasd_enable_device() which never returns if the device is in this special state. Return -EPERM in dasd_increase_state for unformatted devices to make dasd_enable_device terminate. Note: To get such an unformatted device online it has to be re-analyzed. This means that the device needs to be disabled prior to re-enablement. Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] s390: qdio memory allocationsAndreas Herrmann
Avoid memory allocation with GFP_KERNEL in qdio_establish/qdio_shutdown. Use memory pool instead. (Otherwise this can lead to an I/O stall where qdio waits for a free page and zfcp waits for end of error recovery in low memory situations.) Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] s390: alternate signal stack handling bugLaurent Meyer
If a signal handler has been established with the SA_ONSTACK option but no alternate stack is provided with sigaltstack(), the kernel still tries to install the alternate stack. Also when setting an alternate stack with sigalstack() and the SS_DISABLE flag, the kernel tries to install the alternate stack on signal delivery. Use the correct conditions sas_ss_flags() to check if the alternate stack has to be used. Signed-off-by: Laurent Meyer <meyerlau@fr.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] s390: enable interrupts on error pathStefan Bader
Interrupts can stay disabled if an error occurred in _chp_add(). Use spin_unlock_irq on the error paths to reenable interrupts. Signed-off-by: Stefan Bader <shbader@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] s390: fix I/O termination race in cioPeter Oberparleiter
Fix a race condition in the I/O termination logic. The race can cause I/O to a dasd device to fail with no retry left after turning one channel path to the device off and on multiple times. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] kprobe: fix resume execution on i386Masami Hiramatsu
Fix resume_execution() to handle iret and absolute jump opcode correctly on i386. Signed-off-by: Masami Hiramatsu <hiramatu@sdl.hitachi.co.jp> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: "Keshavamurthy, Anil S" <anil.s.keshavamurthy@intel.com> Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com> Cc: Jim Keniston <jkenisto@us.ibm.com> Cc: Yumiko Sugita <sugita@sdl.hitachi.co.jp> Cc: Satoshi Oshima <soshima@redhat.com> Cc: Hideo Aoki <haoki@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] kprobe cleanup for VM_MASK judgementmao, bibo
When trap happens in user space, kprobe_exceptions_notify() funtion will skip it. This patch deletes some unnecessary code for VM_MASK judgement in eflags. Signed-off-by: bibo, mao <bibo.mao@intel.com> Cc: Masami Hiramatsu <hiramatu@sdl.hitachi.co.jp> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Acked-by: "Keshavamurthy, Anil S" <anil.s.keshavamurthy@intel.com> Acked-by: Prasanna S Panchamukhi <prasanna@in.ibm.com> Cc: Jim Keniston <jkenisto@us.ibm.com> Cc: Yumiko Sugita <sugita@sdl.hitachi.co.jp> Cc: Satoshi Oshima <soshima@redhat.com> Cc: Hideo Aoki <haoki@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] Mark VMSPLIT EMBEDDEDAndi Kleen
Running abnormal VM splits causes weird problems - people can set non-standard splits by accident, then lots of time gets wasted diagnosing it - see the long "[stable] 2.6.16.6 breaks java... sort of" email thread. So we need to make this option harder to set. Use CONFIG_EMBEDDED for this. CONFIG_EMBEDDED isn't really the right thing to use, but there's nothing else obvious and avoiding these problems is more important than Kconfig purity. Signed-off-by: Andi Kleen <ak@suse.de> Cc: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] enable X86_PC for HOTPLUG_CPUAshok Raj
CPU_HOTPLUG has race conditions when we use broadcast mode IPI. - First we introduced no_broadcast option (see include/asm-i386/mach-default/mach_ipi.h) - x86_64 solved it by using physical flat mode (same as bigsmp on i386) since this will not use broadcast shortcuts for IPI. - We switched to use bigsmp on i386 so that we can have same handling as x86_64, but apparently this caused an error message, if kernel was compiled without X86_GENERICARCH, X86_BIGSMP. The message "You have >8 CPUS..." which was bogus and misleading, and only indicated one of the above ARCH wasnt selected. So we do not switch to automatic bigsmp for HOTPLUG_CPU support in i386 until the other related config dependencies for SMP_SUSPEND etc can be done right. Signed-off-by: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] Avoid printing pointless tsc skew msgsDave Jones
These messages are kinda silly.. CPU#0 had 0 usecs TSC skew, fixed it up. CPU#1 had 0 usecs TSC skew, fixed it up. inspired from: http://bugzilla.kernel.org/attachment.cgi?id=7713&action=view Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] re-add the OSS SOUND_CS4232 optionAdrian Bunk
A regression in the ALSA driver compared to the OSS driver was reported as ALSA bug #1520, so let's keep the OSS driver for now. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] fix array overrun in drivers/char/mwave/mwavedd.cEric Sesterhenn
this fixes coverity id #489. Since the last element in the array is always ARRAY_SIZE-1 we have to check for ipcnum >= ARRAY_SIZE() Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] tipar oops fixDaniel Drake
If compiled into the kernel, parport_register_driver() is called before the parport driver has been initalised. This means that it is expected that tp_count is 0 after the parport_register_driver() call() - tipar's attach function will not be called until later during bootup. Signed-off-by: Daniel Drake <dsd@gentoo.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] request_irq(): remove warnings from irq probingAndrew Morton
- Add new SA_PROBEIRQ which suppresses the new sharing-mismatch warning. Some drivers like to use request_irq() to find an unused interrupt slot. - Use it in i82365.c - Kill unused SA_PROBE. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28[PATCH] off-by-1 in kernel/power/main.cdean gaudet
There's an off-by-1 in kernel/power/main.c:state_store() ... if your kernel just happens to have some non-zero data at pm_states[PM_SUSPEND_MAX] (i.e. one past the end of the array) then it'll let you write anything you want to /sys/power/state and in response the box will enter S5. Signed-off-by: dean gaudet <dean@arctic.org> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28Merge 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] update sn2 defconfig [IA64] Add mca recovery failure messages [IA64-SGI] fix SGI Altix tioce_reserve_m32() bug [IA64] enable dumps to capture second page of kernel stack [IA64-SGI] - Reduce overhead of reading sn_topology [IA64-SGI] - Fix discover of nearest cpu node to IO node [IA64] IOC4 config option ordering [IA64] Setup an IA64 specific reclaim distance [IA64] eliminate compile time warnings [IA64] eliminate compile time warnings [IA64-SGI] SN SAL call to inject memory errors [IA64] - Fix MAX_PXM_DOMAINS for systems with > 256 nodes [IA64] Remove unused variable in sn_sal.h [IA64] Remove redundant NULL checks before kfree [IA64] wire up compat_sys_adjtimex()
2006-04-27[IA64] update sn2 defconfigJes Sorensen
Update SN2 defconfig to latest kernel and add QLA FC drivers commonly found in SN2 boxes. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-04-27[IA64] Add mca recovery failure messagesRuss Anderson
When the mca recovery code encounters a condition that makes the MCA non-recoverable, print the reason it could not recover. This will make it easier to identify why the recovery code did not recover. Signed-off-by: Russ Anderson <rja@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-04-27[IA64-SGI] fix SGI Altix tioce_reserve_m32() bugMike Habeck
The following patch fixes a bug in the SGI Altix tioce_reserve_m32() code. The bug was that we could walking past the end of the CE ASIC 32/40bit PMU ATE Buffer, resulting in a PIO Reply Error. Signed-off-by: Mike Habeck <habeck@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-04-27[IA64] enable dumps to capture second page of kernel stackCliff Wickman
In SLES10 (2.6.16) crash dumping (in my experience, LKCD) is unable to capture the second page of the 2-page task/stack allocation. This is particularly troublesome for dump analysis, as the stack traceback cannot be done. (A similar convention is probably needed throughout the kernel to make kernel multi-page allocations detectable for dumping) Multi-page kernel allocations are represented by the single page structure associated with the first page of the allocation. The page structures associated with the other pages are unintialized. If the dumper is selecting only kernel pages it has no way to identify any but the first page of the allocation. The fix is to make the task/stack allocation a compound page. Signed-off-by: Cliff Wickman <cpw@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-04-27[IA64-SGI] - Reduce overhead of reading sn_topologyJack Steiner
MPI programs using certain debug options have a long startup time. This was traced to a "vmalloc/vfree" in the code that reads /proc/sgi_sn/sn_topology. On large systems, vfree requires an IPI to all cpus to do TLB purging. Replace the vmalloc/vfree with kmalloc/kfree. Although the size of the structure being allocated is unknown, it will not not exceed 96 bytes. Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-04-27[IA64-SGI] - Fix discover of nearest cpu node to IO nodeJack Steiner
Fix a bug that causes discovery of the nearest node/cpu to a TIO (IO node) to fail. Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-04-27Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: [PATCH] PCI quirk: VIA IRQ fixup should only run for VIA southbridges [PATCH] PCI: fix potential resource leak in drivers/pci/msi.c [PATCH] PCI: Documentation: no more device ids [PATCH] PCI: fix via irq SATA patch
2006-04-27Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: [PATCH] USB: ftdi_sio: add support for ASK RDR 400 series card reader [PATCH] USB: ftdi_sio: Adds support for iPlus device. [PATCH] USB: ftdi_sio vendor code for RR-CirKits LocoBuffer USB [PATCH] USB: Use new PCI_CLASS_SERIAL_USB_* defines [PATCH] USB: net2280: set driver data before it is used [PATCH] USB: net2280: check for shared IRQs [PATCH] USB: net2280: send 0-length packets for ep0 [PATCH] USB: net2280: Handle STALLs for 0-length control-IN requests [PATCH] USB: storage: atmel unusual dev update [PATCH] USB: Storage: unusual devs update [PATCH] USB: add new iTegno usb CDMA 1x card support for pl2303 [PATCH] USB: Resource leak fix for whiteheat driver
2006-04-27Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: [PATCH] Added URI of "linux kernel development process" [PATCH] Kobject: possible cleanups [PATCH] Fix OCFS2 warning when DEBUG_FS is not enabled [PATCH] Kobject: fix build error [PATCH] Frame buffer: remove cmap sysfs interface
2006-04-27Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] Fix branch emulation for floating-point exceptions. [MIPS] Cleanup inode->r_dev usage. [MIPS] Update MIPS defconfigs. [MIPS] Get rid of CONFIG_ADVANCED. [MIPS] Kconfig: Clarify description of CROSSCOMPILE. [MIPS] 24K LV: Add core card id. [MIPS] Sparse: fix sparse for 64-bit kernels. [MIPS] Use __ffs() instead of ffs() in ip32_irq0(). [MIPS] Fix bitops for MIPS32/MIPS64 CPUs. [MIPS] Fix ip27 build. [MIPS] Oprofile: fix sparse warning. [MIPS] Fix oprofile module unloading
2006-04-27Merge branch 'splice' of git://brick.kernel.dk/data/git/linux-2.6-blockLinus Torvalds
* 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block: [PATCH] splice: make the read-side do batched page lookups [PATCH] Add find_get_pages_contig(): contiguous variant of find_get_pages() [PATCH] splice: switch to using page_cache_readahead()
2006-04-27[PATCH] Added URI of "linux kernel development process"Paolo Ciarrocchi
Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-27[PATCH] Kobject: possible cleanupsAdrian Bunk
This patch contains the following possible cleanups: - #if 0 the following unused global function: - subsys_remove_file() - remove the following unused EXPORT_SYMBOL's: - kset_find_obj - subsystem_init - remove the following unused EXPORT_SYMBOL_GPL: - kobject_add_dir Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-27[PATCH] Fix OCFS2 warning when DEBUG_FS is not enabledJean Delvare
Fix the following warning which happens when OCFS2_FS is enabled but DEBUG_FS isn't: fs/ocfs2/dlmglue.c: In function `ocfs2_dlm_init_debug': fs/ocfs2/dlmglue.c:2036: warning: passing arg 5 of `debugfs_create_file' discards qualifiers from pointer target type Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Joel Becker <Joel.Becker@oracle.com> Acked-by: Mark Fasheh <mark.fasheh@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-27[PATCH] Kobject: fix build errorKay Sievers
This fixes a build error for various odd combinations of CONFIG_HOTPLUG and CONFIG_NET. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Nigel Cunningham <ncunningham@cyclades.com> Cc: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-27[PATCH] Frame buffer: remove cmap sysfs interfaceJon Smirl
Remove it as it does not work properly due to sysfs core changes. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-27[PATCH] PCI quirk: VIA IRQ fixup should only run for VIA southbridgesChris Wedgwood
Alan Cox pointed out that the VIA 'IRQ fixup' was erroneously running on my system which has no VIA southbridge (but I do have a VIA IEEE 1394 device). This should address that. I also changed "Via IRQ" to "VIA IRQ" (initially I read Via as a capitalized via (by way/means of). Signed-off-by: Chris Wedgwood <cw@f00f.org> Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-27[PATCH] PCI: fix potential resource leak in drivers/pci/msi.cJesper Juhl
The coverity checker spotted (as entry #599) that we might leak `entry' in drivers/pci/msi.c::msix_capability_init() This patch should take care of that. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-27[PATCH] PCI: Documentation: no more device idsIngo Oeser
Document that we don't like to add more PCI device ids but are happy to accept PCI vendor ids for linux/include/pci_ids.h Original text from Jeff Garzik. Signed-off-by: Ingo Oeser <netdev@axxeo.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-27[PATCH] PCI: fix via irq SATA patchGreg Kroah-Hartman
This device id improperly got added to the VIA chipset list with a previous patch. Remove it as it is not correct. Cc: Grzegorz Janoszka <Grzegorz@Janoszka.pl> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-27[PATCH] x86/PAE: Fix pte_clear for the >4GB RAM caseZachary Amsden
Proposed fix for ptep_get_and_clear_full PAE bug. Pte_clear had the same bug, so use the same fix for both. Turns out pmd_clear had it as well, but pgds are not affected. The problem is rather intricate. Page table entries in PAE mode are 64-bits wide, but the only atomic 8-byte write operation available in 32-bit mode is cmpxchg8b, which is expensive (at least on P4), and thus avoided. But it can happen that the processor may prefetch entries into the TLB in the middle of an operation which clears a page table entry. So one must always clear the P-bit in the low word of the page table entry first when clearing it. Since the sequence *ptep = __pte(0) leaves the order of the write dependent on the compiler, it must be coded explicitly as a clear of the low word followed by a clear of the high word. Further, there must be a write memory barrier here to enforce proper ordering by the compiler (and, in the future, by the processor as well). On > 4GB memory machines, the implementation of pte_clear for PAE was clearly deficient, as it could leave virtual mappings of physical memory above 4GB aliased to memory below 4GB in the TLB. The implementation of ptep_get_and_clear_full has a similar bug, although not nearly as likely to occur, since the mappings being cleared are in the process of being destroyed, and should never be dereferenced again. But, as luck would have it, it is possible to trigger bugs even without ever dereferencing these bogus TLB mappings, even if the clear is followed fairly soon after with a TLB flush or invalidation. The problem is that memory above 4GB may now be aliased into the first 4GB of memory, and in fact, may hit a region of memory with non-memory semantics. These regions include AGP and PCI space. As such, these memory regions are not cached by the processor. This introduces the bug. The processor can speculate memory operations, including memory writes, as long as they are committed with the proper ordering. Speculating a memory write to a linear address that has a bogus TLB mapping is possible. Normally, the speculation is harmless. But for cached memory, it does leave the falsely speculated cacheline unmodified, but in a dirty state. This cache line will be eventually written back. If this cacheline happens to intersect a region of memory that is not protected by the cache coherency protocol, it can corrupt data in I/O memory, which is generally a very bad thing to do, and can cause total system failure or just plain undefined behavior. These bugs are extremely unlikely, but the severity is of such magnitude, and the fix so simple that I think fixing them immediately is justified. Also, they are nearly impossible to debug. Signed-off-by: Zachary Amsden <zach@vmware.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-27[PATCH] USB: ftdi_sio: add support for ASK RDR 400 series card readerIan Abbott
This patch adds support for an ASK RDR 400 series contactless card reader <http://www.ask.fr/uk/products_and_services/terminals.html> to the ftdi_sio driver's device ID table. The product ID was supplied by Adriano Couto on the ftdi-usb-sio-devel list. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-27[PATCH] USB: ftdi_sio: Adds support for iPlus device.Luiz Fernando N. Capitulino
Adds support in ftdi_sio usbserial driver for USB modems sold by Plus GSM Company in Poland. Signed-off-by: Luiz Fernando Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-27[PATCH] USB: ftdi_sio vendor code for RR-CirKits LocoBuffer USBNathan Bronson
This patch adds recognition of the RR-CirKits LocoBuffer USB to the existing FTDI driver. http://www.rr-cirkits.com Signed-off-by: Nathan Bronson <ngb@sns-usa.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-27[PATCH] USB: Use new PCI_CLASS_SERIAL_USB_* definesJean Delvare
We could use the recently added PCI_CLASS_SERIAL_USB_UHCI, PCI_CLASS_SERIAL_USB_OHCI and PCI_CLASS_SERIAL_USB_EHCI defines in more places, for slightly shorter and clearer code. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>