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2006-04-01[PATCH] fbdev: Remove old radeon driverMichael Hanselmann3-3180/+0
This patch removes the old radeon driver which has been replaced by a newer one. Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-01[PATCH] fbcon: Fix big-endian bogosity in slow_imageblit()Antonino A. Daplas1-1/+1
The monochrome->color expansion routine that handles bitmaps which have (widths % 8) != 0 (slow_imageblit) produces corrupt characters in big-endian. This is caused by a bogus bit test in slow_imageblit(). Fix. This patch may deserve to go to the stable tree. The code has already been well tested in little-endian machines. It's only in big-endian where there is uncertainty and Herbert confirmed that this is the correct way to go. It should not introduce regressions. Signed-off-by: Antonino Daplas <adaplas@pol.net> Acked-by: Herbert Poetzl <herbert@13thfloor.at> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-01[PATCH] pxafb: Minor driver fixesRichard Purdie1-4/+4
Fixes for the pxafb driver: * Return -EINVAL for resolutions that are too large as per framebuffer driver policy. * Increase the error timeout for disabling the LCD controller. The current timeout is sometimes too short on the Sharp Zaurus Cxx00 hardware and an extra delay in an error path shouldn't pose any problems. * Fix a dev reference which causes a compile error when DEBUG is defined. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-01[PATCH] backlight: corgi_bl: Generalise to support other Sharp SL hardwareRichard Purdie2-20/+15
Generalise the Corgi backlight driver by moving the default intensity and limit mask settings into the platform specific data structure. This enables the driver to support other Zaurus hardware, specifically the SL-6000x (Tosa) model. Also change the spinlock to a mutex (the spinlock is overkill). Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-01[PATCH] backlight: HP Jornada 680 Backlight driver updates/fixesRichard Purdie1-80/+59
Updates to the HP Jornada 680 Backlight driver: - Correct the suspend/resume functions so the driver compiles (SUSPEND_POWER_DOWN/RESUME_POWER_ON no longer exist). - Convert the driver to match the recent platform device changes. - Replace the unsafe static struct platform_device with dynamic allocation. - Convert the driver to the new backlight code. This has not been tested on a device due to lack of hardware but wouldn't compile beforehand. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-01[PATCH] backlight: Backlight Class ImprovementsRichard Purdie2-91/+92
Backlight class attributes are currently easy to implement incorrectly. Moving certain handling into the backlight core prevents this whilst at the same time makes the drivers simpler and consistent. The following changes are included: The brightness attribute only sets and reads the brightness variable in the backlight_properties structure. The power attribute only sets and reads the power variable in the backlight_properties structure. Any framebuffer blanking events change a variable fb_blank in the backlight_properties structure. The backlight driver has only two functions to implement. One function is called when any of the above properties change (to update the backlight brightness), the second is called to return the current backlight brightness value. A new attribute "actual_brightness" is added to return this brightness as determined by the driver having combined all the above factors (and any driver/device specific factors). Additionally, the backlight core takes care of checking the maximum brightness is not exceeded and of turning off the backlight before device removal. The corgi backlight driver is updated to reflect these changes. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-01[PATCH] w100fb: Add acceleration support to ATI ImageonAlberto Mardegan2-299/+611
Add acceleration support in w100fb.c (i.e. ATI Imageons) for the copyarea and fillrect operations. Signed-off-by: Alberto Mardegan <mardy@users.sourceforge.net> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-01[PATCH] fbcon: Save current display during initializationAntonino A. Daplas1-0/+1
The current display was not saved during initialization. This leads to hard to track console corruption, such as a misplaced cursor, which is correctible by switching consoles. Fix this minor bug. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-01[PATCH] Don't pass boot parameters to argv_init[]OGAWA Hirofumi4-10/+10
The boot cmdline is parsed in parse_early_param() and parse_args(,unknown_bootoption). And __setup() is used in obsolete_checksetup(). start_kernel() -> parse_args() -> unknown_bootoption() -> obsolete_checksetup() If __setup()'s callback (->setup_func()) returns 1 in obsolete_checksetup(), obsolete_checksetup() thinks a parameter was handled. If ->setup_func() returns 0, obsolete_checksetup() tries other ->setup_func(). If all ->setup_func() that matched a parameter returns 0, a parameter is seted to argv_init[]. Then, when runing /sbin/init or init=app, argv_init[] is passed to the app. If the app doesn't ignore those arguments, it will warning and exit. This patch fixes a wrong usage of it, however fixes obvious one only. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-30[PARISC] Fix stifb with IOREMAP and a 64-bit kernelHelge Deller3-127/+19
Kill various warnings when built using ioremap. Remove stifb_{read,write} functions, which are now obsolete (and stack abusers!) Disable stifb mmap() functionality on a 64-bit kernel, it will crash the machine. Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-03-29Merge ../linux-2.6Paul Mackerras44-236/+5924
2006-03-28[PATCH] powerpc: Kill _machine and hard-coded platform numbersBenjamin Herrenschmidt8-18/+23
This removes statically assigned platform numbers and reworks the powerpc platform probe code to use a better mechanism. With this, board support files can simply declare a new machine type with a macro, and implement a probe() function that uses the flattened device-tree to detect if they apply for a given machine. We now have a machine_is() macro that replaces the comparisons of _machine with the various PLATFORM_* constants. This commit also changes various drivers to use the new macro instead of looking at _machine. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-03-27[PATCH] video/sis/init301.c:SiS_ChrontelDoSomething2(): remove dead codeAdrian Bunk1-10/+1
The Coverity checker spotted these two unused variables. Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Thomas Winischhofer <thomas@winischhofer.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] drivers/video: Use ARRAY_SIZE macroTobias Klauser17-57/+58
Use ARRAY_SIZE macro instead of sizeof(x)/sizeof(x[0]) and remove duplicates of ARRAY_SIZE. Some coding style and trailing whitespaces are also fixed. Compile-tested where possible (some are other arch or BROKEN) Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] fbdev: add modeline for 1680x1050@60Olaf Hering1-0/+4
Add a modeline for the Philips 200W display. aty128fb does not do DDC, it picks 1920x1440 or similar. It works ok with nvidiafb because it can ask for DDC data. mode "1680x1050-60" # D: 146.028 MHz, H: 65.191 kHz, V: 59.863 Hz geometry 1680 1050 1680 1050 16 timings 6848 280 104 30 3 176 6 hsync high vsync high rgba 5/11,6/5,5/0,0/0 endmode hwinfo --monitor 20: None 00.0: 10000 Monitor [Created at monitor.206] Unique ID: rdCR.pzUFTofo1S4 Parent ID: 002j.bJRsY88eNSC Hardware Class: monitor Model: "PHILIPS Philips 200W" Vendor: PHL "PHILIPS" Device: eisa 0x0832 "Philips 200W" Serial ID: "VN 016596" Resolution: 720x400@70Hz Resolution: 640x480@60Hz Resolution: 640x480@67Hz Resolution: 640x480@72Hz Resolution: 640x480@75Hz Resolution: 800x600@56Hz Resolution: 800x600@60Hz Resolution: 800x600@72Hz Resolution: 800x600@75Hz Resolution: 832x624@75Hz Resolution: 1024x768@60Hz Resolution: 1024x768@70Hz Resolution: 1024x768@75Hz Resolution: 1280x1024@75Hz Resolution: 1152x864@70Hz Resolution: 1152x864@75Hz Resolution: 1280x960@60Hz Resolution: 1280x1024@60Hz Resolution: 1680x1050@60Hz Size: 433x271 mm Driver Info #0: Max. Resolution: 1680x1050 Vert. Sync Range: 56-85 Hz Hor. Sync Range: 30-93 kHz Config Status: cfg=new, avail=yes, need=no, active=unknown Attached to: #5 (VGA compatible controller) Signed-off-by: Olaf Hering <olh@suse.de> Acked-by: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] sparse: Fix warnings in newport driver about non-static functionsRalf Baechle1-2/+2
There are more sparse warnings but fixing those will require some more work than I want to do without hardware for testing at hand. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] Add ID for Quadro NVS280Pavel Roskin1-0/+2
Quadro NVS280 is a dual-head PCIe card with PCI ID 10de:00fd and subsystem ID 10de:0215. Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] imsttfb: Remove dead codeAntonino A. Daplas1-4/+4
clk_p is always 0. Coverity Bug 67 Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] atyfb: Remove dead codeAntonino A. Daplas1-3/+5
Remove code that can never be reached. Coverity Bug 67 Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] savagefb: Remove NULL checkAntonino A. Daplas1-2/+1
Remove unnecessary NULL check. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] i810fb: Remove NULL checkAntonino A. Daplas1-2/+1
Remove unnecessary NULL check. Being a function private to the driver, out_edid can never be NULL. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] nvidiafb: Remove NULL check #2Antonino A. Daplas1-2/+1
Remove unnecessary NULL check. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] nvidiafb: Remove NULL checkAntonino A. Daplas1-2/+0
Remove unnecessary NULL check, as struct info will never be NULL. Coverity Bug 835 Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] rivafb: Remove NULL checkAntonino A. Daplas1-2/+0
Remove unnecessary NULL check, as struct info will never be NULL. Coverity Bug 836 Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] framebuffer: cmap-setting return valuesAlan Curry3-7/+7
A set of 3 small bugfixes, all of which are related to bogus return values of fb colormap-setting functions. First, fb_alloc_cmap returns -1 if memory allocation fails. This is a hard condition to reproduce since you'd have to be really low on memory, but from studying the contexts in which it is called, I think this function should be returning a negative errno, and the -1 will be seen as an EPERM. Switching it to -ENOMEM makes sense. Second, the store_cmap function which is called for writes to /sys/class/graphics/fb0/color_map returns 0 for success, but it should be returning the count of bytes written since its return value ends up in userspace as the result of the write() syscall. Third, radeonfb returns 1 instead of a negative errno when FBIOPUTCMAP is called with an oversized colormap. This is seen in userspace as a return value of 1 from the ioctl() syscall with errno left unchanged. A more useful return value would be -EINVAL. Signed-off-by: Alan Curry <pacman@TheWorld.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] fbdev: Make BIOS EDID reading configurableAntonino A. Daplas2-3/+19
DDC reading via the Video BIOS may take several tens of seconds with some combination of display cards and monitors. Make this option configurable. It defaults to `y' to minimise disruption. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] au1200fb: Alchemy Au1200 framebuffer driverRalf Baechle4-0/+4428
Add support for Alchemy Au1200 framebuffer driver Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] matrox maven: memory allocation and other cleanupsJean Delvare1-30/+25
A few cleanups which were done to almost all i2c drivers some times ago, but matroxfb_maven was forgotten: * Don't allocate two different structures at once. * Use kzalloc instead of kmalloc+memset. * Use strlcpy instead of strcpy. * Drop duplicate error message on client deregistration failure. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Petr Vandrovec <vandrove@vc.cvut.cz> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] matroxfb: simply return what i2c_add_driver() doesArthur Othieno1-12/+5
insmod will tell us when the module failed to load. We do no further processing on the return from i2c_add_driver(), so just return what i2c_add_driver() did, instead of storing it. Add __init/__exit annotations while we're at it. Signed-off-by: Arthur Othieno <apgo@patchbomb.org> Acked-by: Jean Delvare <khali@linux-fr.org> Acked-by: Petr Vandrovec <petr@vandrovec.name> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] fbdev: framebuffer driver for Geode GXDavid Vrabel7-2/+1003
A framebuffer driver for the display controller in AMD Geode GX processors (Geode GX533, Geode GX500 etc.). Tested at 640x480, 800x600, 1024x768 and 1280x1024 at 8, 16, and 24 bpp with both CRT and TFT. No accelerated features currently implemented and compression remains disabled. This driver requires that the BIOS (or the SoftVG/Firmbase code in the BIOS) has created an appropriate virtual PCI header. Signed-off-by: David Vrabel <dvrabel@arcom.com> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] nvidiafb: add suspend and resume hooksAntonino A. Daplas3-31/+97
Add suspend and resume hooks to make software suspend more reliable. Resuming from standby should generally work. Resuming from mem and from disk requires that the GPU is disabled. Adding these to the suspend script... fbset -accel false -a /* suspend here */ fbset -accel true -a ... should generally work. In addition, resuming from mem requires that the video card has to be POSTed by the BIOS or some other utility. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] vgacon: Add support for soft scrollbackAntonino A. Daplas2-43/+225
The scrollback buffer of the VGA console is located in VGA RAM. This RAM is fixed in size and is very small. To make the scrollback buffer larger, it must be placed instead in System RAM. This patch adds this feature. The feature and the size of the buffer are made as a kernel config option. Besides consuming kernel memory, this feature will slow down the console by approximately 20%. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Jindrich Makovicka <makovick@kmlinux.fjfi.cvut.cz> Cc: Martin Mares <mj@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] vgacon: fix EGA cursor resize functionSamuel Thibault1-8/+19
This corrects cursor resize on ega boards: registers are write-only, so we shouldn't even try to read them. And on ega, 31/30 produces a flat cursor. Using 31/31 is better: except with 32 pixels high fonts, it shouldn't show up. Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27[PATCH] Notifier chain update: API changesAlan Stern1-14/+17
The kernel's implementation of notifier chains is unsafe. There is no protection against entries being added to or removed from a chain while the chain is in use. The issues were discussed in this thread: http://marc.theaimsgroup.com/?l=linux-kernel&m=113018709002036&w=2 We noticed that notifier chains in the kernel fall into two basic usage classes: "Blocking" chains are always called from a process context and the callout routines are allowed to sleep; "Atomic" chains can be called from an atomic context and the callout routines are not allowed to sleep. We decided to codify this distinction and make it part of the API. Therefore this set of patches introduces three new, parallel APIs: one for blocking notifiers, one for atomic notifiers, and one for "raw" notifiers (which is really just the old API under a new name). New kinds of data structures are used for the heads of the chains, and new routines are defined for registration, unregistration, and calling a chain. The three APIs are explained in include/linux/notifier.h and their implementation is in kernel/sys.c. With atomic and blocking chains, the implementation guarantees that the chain links will not be corrupted and that chain callers will not get messed up by entries being added or removed. For raw chains the implementation provides no guarantees at all; users of this API must provide their own protections. (The idea was that situations may come up where the assumptions of the atomic and blocking APIs are not appropriate, so it should be possible for users to handle these things in their own way.) There are some limitations, which should not be too hard to live with. For atomic/blocking chains, registration and unregistration must always be done in a process context since the chain is protected by a mutex/rwsem. Also, a callout routine for a non-raw chain must not try to register or unregister entries on its own chain. (This did happen in a couple of places and the code had to be changed to avoid it.) Since atomic chains may be called from within an NMI handler, they cannot use spinlocks for synchronization. Instead we use RCU. The overhead falls almost entirely in the unregister routine, which is okay since unregistration is much less frequent that calling a chain. Here is the list of chains that we adjusted and their classifications. None of them use the raw API, so for the moment it is only a placeholder. ATOMIC CHAINS ------------- arch/i386/kernel/traps.c: i386die_chain arch/ia64/kernel/traps.c: ia64die_chain arch/powerpc/kernel/traps.c: powerpc_die_chain arch/sparc64/kernel/traps.c: sparc64die_chain arch/x86_64/kernel/traps.c: die_chain drivers/char/ipmi/ipmi_si_intf.c: xaction_notifier_list kernel/panic.c: panic_notifier_list kernel/profile.c: task_free_notifier net/bluetooth/hci_core.c: hci_notifier net/ipv4/netfilter/ip_conntrack_core.c: ip_conntrack_chain net/ipv4/netfilter/ip_conntrack_core.c: ip_conntrack_expect_chain net/ipv6/addrconf.c: inet6addr_chain net/netfilter/nf_conntrack_core.c: nf_conntrack_chain net/netfilter/nf_conntrack_core.c: nf_conntrack_expect_chain net/netlink/af_netlink.c: netlink_chain BLOCKING CHAINS --------------- arch/powerpc/platforms/pseries/reconfig.c: pSeries_reconfig_chain arch/s390/kernel/process.c: idle_chain arch/x86_64/kernel/process.c idle_notifier drivers/base/memory.c: memory_chain drivers/cpufreq/cpufreq.c cpufreq_policy_notifier_list drivers/cpufreq/cpufreq.c cpufreq_transition_notifier_list drivers/macintosh/adb.c: adb_client_list drivers/macintosh/via-pmu.c sleep_notifier_list drivers/macintosh/via-pmu68k.c sleep_notifier_list drivers/macintosh/windfarm_core.c wf_client_list drivers/usb/core/notify.c usb_notifier_list drivers/video/fbmem.c fb_notifier_list kernel/cpu.c cpu_chain kernel/module.c module_notify_list kernel/profile.c munmap_notifier kernel/profile.c task_exit_notifier kernel/sys.c reboot_notifier_list net/core/dev.c netdev_chain net/decnet/dn_dev.c: dnaddr_chain net/ipv4/devinet.c: inetaddr_chain It's possible that some of these classifications are wrong. If they are, please let us know or submit a patch to fix them. Note that any chain that gets called very frequently should be atomic, because the rwsem read-locking used for blocking chains is very likely to incur cache misses on SMP systems. (However, if the chain's callout routines may sleep then the chain cannot be atomic.) The patch set was written by Alan Stern and Chandra Seetharaman, incorporating material written by Keith Owens and suggestions from Paul McKenney and Andrew Morton. [jes@sgi.com: restructure the notifier chain initialization macros] Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25Merge master.kernel.org:/pub/scm/linux/kernel/git/sam/kbuildLinus Torvalds6-6/+0
* master.kernel.org:/pub/scm/linux/kernel/git/sam/kbuild: (46 commits) kbuild: remove obsoleted scripts/reference_* files kbuild: fix make help & make *pkg kconfig: fix time ordering of writes to .kconfig.d and include/linux/autoconf.h Kconfig: remove the CONFIG_CC_ALIGN_* options kbuild: add -fverbose-asm to i386 Makefile kbuild: clean-up genksyms kbuild: Lindent genksyms.c kbuild: fix genksyms build error kbuild: in makefile.txt note that Makefile is preferred name for kbuild files kbuild: replace PHONY with FORCE kbuild: Fix bug in crc symbol generating of kernel and modules kbuild: change kbuild to not rely on incorrect GNU make behavior kbuild: when warning symbols exported twice now tell user this is the problem kbuild: fix make dir/file.xx when asm symlink is missing kbuild: in the section mismatch check try harder to find symbols kbuild: fix section mismatch check for unwind on IA64 kbuild: kill false positives from section mismatch warnings for powerpc kbuild: kill trailing whitespace in modpost & friends kbuild: small update of allnoconfig description kbuild: make namespace.pl CROSS_COMPILE happy ... Trivial conflict in arch/ppc/boot/Makefile manually fixed up
2006-03-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds3-5/+3
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (21 commits) BUG_ON() Conversion in drivers/video/ BUG_ON() Conversion in drivers/parisc/ BUG_ON() Conversion in drivers/block/ BUG_ON() Conversion in sound/sparc/cs4231.c BUG_ON() Conversion in drivers/s390/block/dasd.c BUG_ON() Conversion in lib/swiotlb.c BUG_ON() Conversion in kernel/cpu.c BUG_ON() Conversion in ipc/msg.c BUG_ON() Conversion in block/elevator.c BUG_ON() Conversion in fs/coda/ BUG_ON() Conversion in fs/binfmt_elf_fdpic.c BUG_ON() Conversion in input/serio/hil_mlc.c BUG_ON() Conversion in md/dm-hw-handler.c BUG_ON() Conversion in md/bitmap.c The comment describing how MS_ASYNC works in msync.c is confusing rcu: undeclared variable used in documentation fix typos "wich" -> "which" typo patch for fs/ufs/super.c Fix simple typos tabify drivers/char/Makefile ...
2006-03-25[PATCH] fix hardcoded values in collie frontlightPavel Machek1-13/+10
In frontlight support, we should really use values from flash-ROM instead of hardcoding our own. Cleanup includes. Signed-off-by: Pavel Machek <pavel@suse.cz> Acked-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25[PATCH] amiga: fix driver_register() return handling, remove zorro_module_init()Bjorn Helgaas1-1/+1
Remove the assumption that driver_register() returns the number of devices bound to the driver. In fact, it returns zero for success or a negative error value. zorro_module_init() used the device count to automatically unregister and unload drivers that found no devices. That might have worked at one time, but has been broken for some time because zorro_register_driver() returned either a negative error or a positive count (never zero). So it could only unregister on failure, when it's not needed anyway. This functionality could be resurrected in individual drivers by counting devices in their .probe() methods. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25[PATCH] hp300: fix driver_register() return handling, remove dio_module_init()Bjorn Helgaas1-1/+3
Remove the assumption that driver_register() returns the number of devices bound to the driver. In fact, it returns zero for success or a negative error value. dio_module_init() used the device count to automatically unregister and unload drivers that found no devices. That might have worked at one time, but has been broken for some time because dio_register_driver() returned either a negative error or a positive count (never zero). So it could only unregister on failure, when it's not needed anyway. This functionality could be resurrected in individual drivers by counting devices in their .probe() methods. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Philip Blundell <philb@gnu.org> Cc: Jochen Friedrich <jochen@scram.de> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25[PATCH] Remove MODULE_PARMRusty Russell1-9/+9
MODULE_PARM was actually breaking: recent gcc version optimize them out as unused. It's time to replace the last users, which are generally in the most unloved drivers anyway. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24BUG_ON() Conversion in drivers/video/Eric Sesterhenn2-4/+2
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-03-24fix typos "wich" -> "which"Uwe Zeisberger1-1/+1
Signed-off-by: Uwe Zeisberger <zeisberg@informatik.uni-freiburg.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-03-24[PATCH] s/;;/;/gAlexey Dobriyan1-1/+1
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-22Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2-7/+3
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64]: Add a secondary TSB for hugepage mappings. [SPARC]: Respect vm_page_prot in io_remap_page_range().
2006-03-22[PATCH] remove set_page_count() outside mm/Nick Piggin1-1/+1
set_page_count usage outside mm/ is limited to setting the refcount to 1. Remove set_page_count from outside mm/, and replace those users with init_page_count() and set_page_refcounted(). This allows more debug checking, and tighter control on how code is allowed to play around with page->_count. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-22[PATCH] i810fb_cursor(): use GFP_ATOMICAntonino A. Daplas1-1/+1
The console cursor can be called in atomic context. Change memory allocation to use the GFP_ATOMIC flag in i810fb_cursor(). Signed-off-by: Antonino Daplas <adaplas@pol.net> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-22[SPARC]: Respect vm_page_prot in io_remap_page_range().David S. Miller2-7/+3
Make sure the callers do a pgprot_noncached() on vma->vm_page_prot. Pointed out by Hugh Dickens. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds3-1/+3
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (23 commits) [PATCH] sysfs: fix a kobject leak in sysfs_add_link on the error path [PATCH] sysfs: don't export dir symbols [PATCH] get_cpu_sysdev() signedness fix [PATCH] kobject_add_dir [PATCH] debugfs: Add debugfs_create_blob() helper for exporting binary data [PATCH] sysfs: fix problem with duplicate sysfs directories and files [PATCH] Kobject: kobject.h: fix a typo [PATCH] Kobject: provide better warning messages when people do stupid things [PATCH] Driver core: add macros notice(), dev_notice() [PATCH] firmware: fix BUG: in fw_realloc_buffer [PATCH] sysfs: kzalloc conversion [PATCH] fix module sysfs files reference counting [PATCH] add EXPORT_SYMBOL_GPL_FUTURE() to USB subsystem [PATCH] add EXPORT_SYMBOL_GPL_FUTURE() to RCU subsystem [PATCH] add EXPORT_SYMBOL_GPL_FUTURE() [PATCH] Clean up module.c symbol searching logic [PATCH] kobj_map semaphore to mutex conversion [PATCH] kref: avoid an atomic operation in kref_put() [PATCH] handle errors returned by platform_get_irq*() [PATCH] driver core: platform_get_irq*(): return -ENXIO on error ...
2006-03-21[PATCH] handle errors returned by platform_get_irq*()David Vrabel1-1/+1
platform_get_irq*() now returns on -ENXIO when the resource cannot be found. Ensure all users of platform_get_irq*() handle this error appropriately. Signed-off-by: David Vrabel <dvrabel@arcom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-21[PATCH] Mark empty release functions as brokenGreg Kroah-Hartman2-0/+2
Come on people, this is just wrong... Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>