- 04 Jan, 2006 6 commits
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Russell King authored
ISA_DMA_API tells the rest of the kernel if the ISA DMA API is available. Select this symbol only on machine types which make use of the ISA DMA API. Make building of arch/arm/kernel/dma.c depend on this symbol - if a machine does not support the ISA DMA API, it's pointless building this file. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
There's no need to have DMA initialised at the same time as interrupts. Move it to a core_initcall(). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
The old __address element in struct scatterlist remained from older kernels because the ARM DMA emulation code made use of it. Move this field into struct dma_struct, and convert DMA emulation code to setup a SG entry as required. Also, convert DMA emulation code to use the new DMA API rather than the PCI DMA API. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
Allow the compiler to optimise the bus_to_virt(virt_to_bus()) transformation in the ARM ISA DMA interface. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
CLPS711x, EPXA10DB and Integrator contained a dma.c file which has never been built. Remove these redundant files. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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- 03 Jan, 2006 6 commits
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Russell King authored
It seems that clk_use() and clk_unuse() are additional complexity which isn't required anymore. Remove them from the clock framework to avoid the additional confusion which they cause, and update all ARM machine types except for OMAP. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
It seems that there's some confusion over how the clock source framework should be used. Add some additional comments to explain the ambiguous areas. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
arch/arm/kernel/entry-armv.S has contained a comment suggesting that asm/hardware.h and asm/arch/irqs.h should be moved into the asm/arch/entry-macro.S include. So move the includes to these two files as required. Add missing includes (asm/hardware.h, asm/io.h) to asm/arch/system.h includes which use those facilities, and remove asm/io.h from kernel/process.c. Remove other unnecessary includes from arch/arm/kernel, arch/arm/mm and arch/arm/mach-footbridge. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
We are coding the kernel link address into the makefiles, which is invisibly dependent on PAGE_OFFSET. If PAGE_OFFSET is changed, the makefiles also need to be changed. Make adjustments such that the makefiles encode just the offset from PAGE_OFFSET for the kernel link address, and use PAGE_OFFSET in the linker scripts directly. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Linus Torvalds authored
Hey, it's fifteen years today since I bought the machine that got Linux started. January 2nd is a good date.
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Andi Kleen authored
Otherwise a bad mem policy system call can confuse the interleaving code into referencing undefined nodes. Originally reported by Doug Chapman I was told it's CVE-2005-3358 (one has to love these security people - they make everything sound important) Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- 02 Jan, 2006 2 commits
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Dag-Erling Smrgrav authored
In commit 3D59121003721a8fad11ee72e646fd9d3076b5679c, the x86 and x86-64 <asm/param.h> was changed to include <linux/config.h> for the configurable timer frequency. However, asm/param.h is sometimes used in userland (it is included indirectly from <sys/param.h>), so your commit pollutes the userland namespace with tons of CONFIG_FOO macros. This greatly confuses software packages (such as BusyBox) which use CONFIG_FOO macros themselves to control the inclusion of optional features. After a short exchange, Christoph approved this patch Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Benjamin Herrenschmidt authored
Some G5s still occasionally experience shutdowns due to overtemp conditions despite the recent fix. After analyzing logs from such machines, it appears that the overtemp code is a bit too quick at shutting the machine down when reaching the critical temperature (tmax + 8) and doesn't leave the fan enough time to actually cool it down. This happens if the temperature of a CPU suddenly rises too high in a very short period of time, or occasionally on boot (that is the CPUs are already overtemp by the time the driver loads). This patches makes the code a bit more relaxed, leaving a few seconds to the fans to do their job before kicking the machine shutown. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- 01 Jan, 2006 2 commits
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Stas Sergeev authored
This should fix multi-threaded core-files Signed-off-by: stsp@aknet.ru Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Linus Torvalds authored
This is a slightly more complete fix for the previous minimal sysctl string fix. It always terminates the returned string with a NUL, even if the full result wouldn't fit in the user-supplied buffer. The returned length is the full untruncated length, so that you can tell when truncation has occurred. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- 31 Dec, 2005 3 commits
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Linus Torvalds authored
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Yi Yang authored
For the sysctl syscall, if the user wants to get the old value of a sysctl entry and set a new value for it in the same syscall, the old value is always overwritten by the new value if the sysctl entry is of string type and if the user sets its strategy to sysctl_string. This issue lies in the strategy being run twice if the strategy is set to sysctl_string, the general strategy sysctl_string always returns 0 if success. Such strategy routines as sysctl_jiffies and sysctl_jiffies_ms return 1 because they do read and write for the sysctl entry. The strategy routine sysctl_string return 0 although it actually read and write the sysctl entry. According to my analysis, if a strategy routine do read and write, it should return 1, if it just does some necessary check but not read and write, it should return 0, for example sysctl_intvec. Signed-off-by: Yi Yang <yang.y.yi@gmail.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Linus Torvalds authored
If the string was too long to fit in the user-supplied buffer, the sysctl layer would zero-terminate it by writing past the end of the buffer. Don't do that. Noticed by Yi Yang <yang.y.yi@gmail.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- 30 Dec, 2005 5 commits
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Linus Torvalds authored
The old /proc interfaces were never updated to use loff_t, and are just generally broken. Now, we should be using the seq_file interface for all of the proc files, but converting the legacy functions is more work than most people care for and has little upside.. But at least we can make the non-LFS rules explicit, rather than just insanely wrapping the offset or something. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Denny Priebe authored
This patch fixes a typo introduced by conversion to dynamic input_dev allocation. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Dmitry Torokhov authored
This patch fixes a typo introduced by conversion to dynamic input_dev allocation. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Dmitry Torokhov authored
This patch fixes a typo introduced by conversion to dynamic input_dev allocation. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Erik Hovland authored
Patch from Erik Hovland This patch provides two changes. An indent is supplied for an if/else clause so that it is more readable. An acronym is incorrectly typed as UER when it should be IER. Signed-off-by: Erik Hovland <erik@hovland.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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- 29 Dec, 2005 14 commits
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Jean Delvare authored
Thanks to Roman Zippel for the suggestion. Signed-off-by: Jean Delvare <khali@linux-fr.org> [ Short explanation: Kconfig uses ternary math: n/m/y, and !m is m ] Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Linus Torvalds authored
This reverts the series of commits 67dbb4ea 281ab031 47807ce3 that changed the GART VM start offset. It fixed some machines, but seems to continually interact badly with some X versions. Quoth Ben Herrenschmidt: "So I think at this point, the best is that we keep the old bogus code that at least is consistent with the bug in the server. I'm working on a big patch to X that reworks the memory map stuff completely and fixes those issues on the server side, I'll do a DRM patch matching this X fix as well so that the memory map is only ever set in one place and with what I hope is a correct algorithm..." Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Linus Torvalds authored
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Linus Torvalds authored
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Jean Delvare authored
Fix the cyclic dependency issue between CONFIG_SAA7134_ALSA and CONFIG_SAA7134_OSS (credits to Mauro Carvalho Chehab.) Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Anton Blanchard authored
Sonny has noticed hotplug CPU on ppc64 is broken in 2.6.15-*. One of the problems is that htab_initialize_secondary is called when a cpu is being brought up, but it is marked __init. Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Ravikiran G Thirumalai authored
Currently, we do not pass the correct start_pfn to e820_hole_size, to calculate holes. Following patch fixes that. The bug results in incorrect number of node_present_pages for each pgdat and causes ugly output in /sys and probably VM inbalances. Signed-off-by: Alok N Kataria <alokk@calsoftinc.com> Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by: Andi Kleen <ak@suse.de> Sighed-off-by: Shair Fultheim <shai@scalex86.org> Sighed-off-by: Linus Torvalds <torvalds@osdl.org>
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Riccardo Magliocchetti authored
This patch fixes a typo introduced by conversion to dynamic input_dev allocation. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Dave Jones authored
__get_unaligned creates a typeof the var its passed, and writes to it, which on gcc4.1, spits out the following error: drivers/char/vc_screen.c: In function 'vcs_write': drivers/char/vc_screen.c:422: error: assignment of read-only variable 'val' Signed-off-by: Dave Jones <davej@redhat.com> [ The "right" fix would be to try to fix <asm-generic/unaligned.h> but that's hard to do with the tools gcc gives us. So this simpler patch is preferable -- Linus ] Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Paolo 'Blaisorblade' Giarrusso authored
Fix UML compilation when SKAS mode is disabled. Indeed, we were compiling SKAS-only object files, which failed due to some SKAS-only headers being excluded from the search path. Thanks to the bug report from Pekka J Enberg. Acked-by: Pekka J Enberg <penberg (at) cs ! helsinki ! fi> Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Paolo 'Blaisorblade' Giarrusso authored
Today, when compiling UML, I got warnings for two used unexported symbols: readdir64 and truncate64. Indeed, my glibc headers are aliasing readdir to readdir64 and truncate to truncate64 (and so on). I'm then adding additional exports. Since I've no idea if the symbols where always provided in the supported glibc's, I've added weak definitions too. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Paolo 'Blaisorblade' Giarrusso authored
Prevent page->index << PAGE_CACHE_SHIFT from overflowing. There is a casting there, but was added without care, so it's at the wrong place. Note the extra parens around the shift - "+" is higher precedence than "<<", leading to a GCC warning which saved all us. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Paolo 'Blaisorblade' Giarrusso authored
Trivial removal of unused variable from this file - doesn't even change the generated assembly code, in fact (gcc should trigger a warning for unused value here). Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Paolo 'Blaisorblade' Giarrusso authored
Don't use printk() where "current_thread_info()" is crap. Until when we switch to running on init_stack, current_thread_info() evaluates to crap. Printk uses "current" at times (in detail, ¤t is evaluated with CONFIG_DEBUG_SPINLOCK to check the spinlock owner task). And this leads to random segmentation faults. Exactly, what happens is that ¤t = *(current_thread_info()), i.e. round down $esp and dereference the value. I.e. access the stack below $esp, which causes SIGSEGV on a VM_GROWSDOWN vma (see arch/i386/mm/fault.c). Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- 28 Dec, 2005 2 commits
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Linus Torvalds authored
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David S. Miller authored
Noticed by Christophe Zimmerman, this explains the slow mouse movement with 2.6.x kernels. And checking the 2.4.x drivers/sbus/char/sunmouse.c driver shows we always used a 5-byte protocol with Sun mice in the past. I have no idea how the 3-byte thing got into the 2.6.x driver, but it's surely wrong. Signed-off-by: David S. Miller <davem@davemloft.net>
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