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2005-09-09[PATCH] console: Fix buffer copy on vc resizeAntonino A. Daplas
On a vc resize, the contents of the old screen buffer are transferred to the new screenbuffer. If the new screenbuffer is smaller than the old one, only the contents from the bottom are copied to new. If the contents of the old buffer are located at the top, then the contents will not be copied to the new buffer resulting in a blank screen. This bug will happen only if the vc in question is not in the foreground. Doing an fbset -a or con2fbmap will trigger this bug. To fix this problem, base the start of the copy from the location of the current cursor. If the cursor is near the top of the buffer, copy the contents at the top, and if the cursor is near the bottom of the buffer, then copy the contents at the bottom. In the unlikely case where the new row size is greater than 2x smaller than the old one, and the cursor is in the middle, copy 1/2 screenful from the top and bottom of the cursor position. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] files: lock-free fd look-upDipankar Sarma
With the use of RCU in files structure, the look-up of files using fds can now be lock-free. The lookup is protected by rcu_read_lock()/rcu_read_unlock(). This patch changes the readers to use lock-free lookup. Signed-off-by: Maneesh Soni <maneesh@in.ibm.com> Signed-off-by: Ravikiran Thirumalai <kiran_th@gmail.com> Signed-off-by: Dipankar Sarma <dipankar@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] files: break up files structDipankar Sarma
In order for the RCU to work, the file table array, sets and their sizes must be updated atomically. Instead of ensuring this through too many memory barriers, we put the arrays and their sizes in a separate structure. This patch takes the first step of putting the file table elements in a separate structure fdtable that is embedded withing files_struct. It also changes all the users to refer to the file table using files_fdtable() macro. Subsequent applciation of RCU becomes easier after this. Signed-off-by: Dipankar Sarma <dipankar@in.ibm.com> Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] synclinkmp.c: fix async internal loopbackPaul Fulghum
Fix async internal loopback by not using enable_loopback function which reprograms clocking and should only be used for hdlc mode. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] synclinkmp.c: add statistics clearPaul Fulghum
Add ability to clear statistics. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] synclinkmp.c: disable burst transfersPaul Fulghum
Disable burst transfers on adapter local bus. Hardware feature does not work on latest version of adapter. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] synclinkmp.c: fix double mapping of signalsPaul Fulghum
Serial signals were incorrectly mapped twice to events. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] synclink.c: add loopback to async modePaul Fulghum
Add internal loopback support for asynchronous mode operation. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] synclink.c: add clear statsPaul Fulghum
Add the ability to clear statistics. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] synclink.c: compiler optimisation fixPaul Fulghum
Make some fields of DMA descriptor volatile to prevent compiler optimizations. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] pty_chars_in_buffer oops fixJason Baron
The idea of this patch is to lock both sides of a ptmx/pty pair during line discipline changing. This is needed to ensure that say a poll on one side of the pty doesn't occur while the line discipline is actively being changed. This resulted in an oops reported on lkml, see: http://marc.theaimsgroup.com/?l=linux-kernel&m=111342171410005&w=2 A 'hacky' approach was previously implmemented which served to eliminate the poll vs. line discipline changing race. However, this patch takes a more general approach to the issue. The patch only adds locking on a less often used path, the line-discipline changing path, as opposed to locking the ptmx/pty pair on read/write/poll paths. The patch below, takes both ldisc locks in either order b/c the locks are both taken under the same spinlock(). I thought about locking the ptmx/pty separately, such as master always first but that introduces a 3 way deadlock. For example, process 1 does a blocking read on the slave side. Then, process 2 does an ldisc change on the slave side, which acquires the master ldisc lock but not the slave's. Finally, process 3 does a write which blocks on the process 2's ldisc reference. This patch does introduce some changes in semantics. For example, a line discipline change on side 'a' of a ptmx/pty pair, will now wait for a read/write to complete on the other side, or side 'b'. The current behavior is to simply wait for any read/writes on only side 'a', not both sides 'a' and 'b'. I think this behavior makes sense, but I wanted to point it out. I've tested the patch with a bunch of read/write/poll while changing the line discipline out from underneath. This patch obviates the need for the above "hide the problem" patch. Signed-off-by: Jason Baron <jbaron@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] gratuitous includes of asm/serial.hviro@ZenIV.linux.org.uk
Removed gratuitous includes of asm/serial.h in synklinkmp and ip2main. Allows to remove the rest of "broken on sparc32" in drivers/char - this stuff doesn't break the build anymore. Since it got zero testing, it almost certainly won't work there, though... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-08Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart Linus Torvalds
2005-09-08[PATCH] PCI: remove CONFIG_PCI_NAMESAdrian Bunk
This patch removes CONFIG_PCI_NAMES. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-09-08Merge linux-2.6 with linux-acpi-2.6Len Brown
2005-09-07Merge branch 'drm-fixes' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6
2005-09-07[PATCH] ipmi poweroff: fix chassis controlCorey Minyard
The IPMI power control function proc_write_chassctrl was badly written, it directly used userspace pointers, it assumed that strings were NULL terminated, and it used the evil sscanf function. This converts over to using the sysctl interface for this data and changes the semantics to be a little more logical. Signed-off-by: Corey Minyard <minyard@acm.org> Cc: <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] ipmi: remove unused fieldsCorey Minyard
This removes the unused "all_cmd_rcvr" variable from the IPMI driver. Signed-off-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] ipmi: style cleanupsCorey Minyard
Clean up various style issues in the IPMI driver. Should be no functional changes. Signed-off-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] ipmi: add hacks for IPMI chassis poweroff for certain Dell serversCorey Minyard
This patch allows Dell servers with IPMI controllers that predate IPMI 1.5 to use the standard poweroff or powercycle commands. These systems firmware don't set the chassis capability bit in the Get Device ID, but they do implement the standard poweroff and powercycle commands. Tested on RHEL3 kernel 2.4.21-20.ELsmp on a PowerEdge 2600. The standard ipmi_poweroff driver cannot drive these systems. With this patch, they power off or powercycle as expected. Signed-off-by: Matt Domsch <Matt_Domsch@dell.com> Signed-off-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] ipmi: fix panic ipmb responseCorey Minyard
The "null message handler" in the IPMI driver is used in startup and panic situations to handle messages. It was only designed to work with messages from the local management controller, but in some cases it was used to get messages from remote managmenet controllers, and the system would then panic. This patch makes the "null message handler" in the IPMI driver more general so it works with any kind of message. Signed-off-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] ipmi: clean up versioning of the IPMI driverCorey Minyard
This adds MODULE_VERSION, MODULE_DESCRIPTION, and MODULE_AUTHOR tags to the IPMI driver modules. Also changes the MODULE_VERSION to remove the prepended 'v' on each value, consistent with the module versioning policy. This patch also removes all the version information from everything except the ipmi_msghandler module. Signed-off-by: Matt Domsch <Matt_Domsch@dell.com> Signed-off-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] ipmi: OEM flag handling and hacks for some Dell machinesCorey Minyard
The ipmi driver does not have a way to handle firmware-generated events which have the OEM[012] Data Available flags set. In such a case, the SMS_ATN bit may never get cleared by firmware, leaving the driver looping infinitely but never able to make any progress. This patch first simplifies storage and use of the data returned from an IPMI Get Device ID command. It then creates a new per-OEM handler hook, which should know how to handle events with the OEM[012] Data Available flags set. It then uses this to implement a workaround for IPMI 1.5-capable Dell PowerEdge servers which are susceptable to setting the OEM[012] Data Available flags when the driver can't handle it. Signed-off-by: Matt Domsch <Matt_Domsch@dell.com> Signed-off-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] ipmi: watchdog/NMI interaction fixesCorey Minyard
There are some interactions between IPMI NMI timeouts and the other operations of the IPMI driver. This make sure those interactions are handled properly. Signed-off-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] ipmi: high-res timer support fixesCorey Minyard
Fix some problems with the high-res timer support. Signed-off-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] ipmi: add per-channel IPMB addressesCorey Minyard
IPMI allows multiple IPMB channels on a single interface, and each channel might have a different IPMB address. However, the driver has only one IPMB address that it uses for everything. This patch adds new IOCTLS and a new internal interface for setting per-channel IPMB addresses and LUNs. New systems are coming out with support for multiple IPMB channels, and they are broken without this patch. Signed-off-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] IPMI: use dmi_find_device()Andrey Panin
This patch replaces homebrew DMI scanning code in IPMI System Interface driver with dmi_find_device() call. Signed-off-by: Andrey Panin <pazke@donpac.ru> Cc: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] drivers: convert kcalloc to kzallocPekka Enberg
This patch converts kcalloc(1, ...) calls to use the new kzalloc() function. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] tpm: fix tpm_atmel.c on ICH6Philipp Matthias Hahn
While installing Debian on our new IBM X41 Tablet, I tried briefly to use the built-in Atmel TPM. The Athmel TPM is also located on the LPC-bus of the ICH6. To make it work I had to apply the following patch: Signed-off-by: Philipp Matthias Hahn <pmhahn@titan.lahn.de> Acked-by: Kylene Jo Hall <kjhall@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] hpet: fix drift and urlAlex Williamson
The HPET driver is using a parts per second drift factor instead of the standard parts per million drift the time interpolator code expects. This patch fixes that problem and updates the URL for the HPET spec. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Cc: "Robert W. Picco" <bob.picco@hp.com> Acked-by: "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] vt: fix possible memory corruption in complement_posAntonino A. Daplas
Based on a patch from Andr Pereira de Almeida <andre@cachola.com.br> It might be possible for the saved pointer (*p) to become invalid in between vc_resizes, so saving the screen offset instead of the screen pointer is saner. This bug is very hard to trigger though, but Andre probably did, if he's submitting this patch. Anyway, with Andre's patch, it's still possible for the offsets to be still illegal, if the new screen size is smaller than the old one. So I've also added checks if the offsets are still within the screenbuffer size. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] Console blanking locking fixStephane Doyon
I've had WARN_CONSOLE_UNLOCKED warnings when calling TIOCLINUX TIOCL_BLANKSCREEN and TIOCL_UNBLANKSCREEN. (I'm blind and I use a braille display. I use those functions to blank my laptop's screen so people don't read it, and hopefully to conserve power.) The warnings are from these places: do_blank_screen at drivers/char/vt.c:2754 (Not tainted) save_screen at drivers/char/vt.c:575 (Not tainted) do_unblank_screen at drivers/char/vt.c:2822 (Not tainted) set_palette at drivers/char/vt.c:2908 (Not tainted) At a glance I would think the following patch ought to fix that. Tested on one machine. Could you please tell me if this is correct and/or forward the patch where appropriate... Signed-off-by: Stephane Doyon <s.doyon@videotron.ca> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] sonypi: remove obsolete eventStelian Pop
Remove old obsolete event. Signed-off-by: Stelian Pop <stelian@popies.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] sonypi SPIC initialisation fixErik Waling
Newer Sony VAIO models (VGN-S480, VGN-S460, VGN-S3XP etc) use a new method to initialize the SPIC device. The new way to initialize (and disable) the device comes directly from the AML code in the _CRS, _SRS and _DIS methods from the DSDT table. This patch adds support for the new models. Signed-off-by: Erik Waling <erikw@acc.umu.se> Signed-off-by: Stelian Pop <stelian@popies.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] move 68360serial.c over use initcallsChristoph Hellwig
this is the last serial driver not using initcalls. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: <jeff@uclinux.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] move m68k rtc drivers over to initcallsChristoph Hellwig
this gets rid of the last two explicit initializations in misc.c Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] remove a dead extern in mem.cChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] Clean up the old digi support and rescue itAlan Cox
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-05[SPARC64]: Kconfig fix (GEN_RTC dependencies)Al Viro
Yet another architecture not coverd by GEN_RTC - sparc64 never picked it until now and it doesn't have asm/rtc.h to go with it, so it wouldn't compile anyway (or have these ioctls in the user-visible headers, for that matter). FWIW, I'm very tempted to introduce ARCH_HAS_GEN_RTC and have it set in arch/*/Kconfig for architectures that know what to do with this stuff - for something supposedly generic the list of architectures where it doesn't work is getting too long... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-05[RTC]: Use SA_SHIRQ in sparc specific code.David S. Miller
Based upon a report from Jason Wever. Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-05[MOXA]: Fix this driver properly.Al Viro
Actually, proper fix of that breakage is embarrassingly simple - it's yet another gratitious leftover include of asm/segment.h, so incremental to the previos would be removal of that BROKEN and removal of bogus include from mxser.c itself. Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-05Merge watchdog driver updatesLinus Torvalds
Automated merge from master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog failed due to duplicate different changes to Kconfig file. Manually fixed up. Hopefully.
2005-09-05drm: fix MGA on non AGP systemsDave Airlie
Al Viro noticed that MGA wouldn't build on non AGP systems. Signed-off-by: Dave Airlie <airlied@linux.ie>
2005-09-05drm: small cleanupsDave Airlie
This patch contains the following small cleanups: - make two needlessly global functions static - drm_sysfs.c: every file should #include the header with the prototypes of the global functions it is offering Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Dave Airlie <airlied@linux.ie>
2005-09-05drm: fix issue with handle lookup for a 0 handleDave Airlie
On 32-bit PPC a 0 handle is valid for AGP space, the 32/64 lookup doesn't handle 0 correctly. From: Ben Herrenschmidt <benh@kernel.crashing.org> and Paul Mackerras <paulus@samba.org> Signed-off-by: Dave Airlie <airlied@linux.ie>
2005-09-05Merge master.kernel.org:/home/rmk/linux-2.6-serial Linus Torvalds
2005-09-05Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 Linus Torvalds
2005-09-05[PATCH] fix warning of TANBAC_TB0219 in drivers/char/KconfigYoichi Yuasa
$ make menuconfig scripts/kconfig/mconf arch/i386/Kconfig drivers/char/Kconfig:847:warning: 'select' used by config symbol 'TANBAC_TB0219' refer to undefined symbol 'PCI_VR41XX' Here is a patch for this warning fix. Signed-off-by: Yoichi Yuasa <yuasa@hh.iij4u.or.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-05[PATCH] mips: add TANBAC VR4131 multichip moduleYoichi Yuasa
This patch has added TANBAC VR4131 multichip module in arch/mips/Kconfig Signed-off-by: Yoichi Yuasa <yuasa@hh.iij4u.or.jp> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-05[PATCH] ppc32: Cleaned up global namespace of Book-E watchdog variablesKumar Gala
Renamed global variables used to convey if the watchdog is enabled and periodicity of the timer and moved the declarations into a header for these variables Signed-off-by: Matt McClintock <msm@freescale.com> Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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