10 Oct, 2007
1 commit
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Three main sets of changes:
1) dmi_get_system_info() return value should have been marked const,
since callers should not be changing that data.2) const-ify DMI internals, since DMI firmware tables should,
whenever possible, be marked const to ensure we never ever write to
that data area.3) const-ify DMI API, to enable marking tables const where possible
in low-level drivers.And if we're really lucky, this might enable some additional
optimizations on the part of the compiler.The bulk of the changes are #2 and #3, which are interrelated. #1 could
have been a separate patch, but it was so small compared to the others,
it was easier to roll it into this changeset.Signed-off-by: Jeff Garzik
24 Aug, 2007
2 commits
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We don't support building any part of PNP as a module (*drivers* can be
modules, of course, but the PNP infrastructure itself can not). Since
MODULE will never be defined, remove the ifdefs and dead code.Signed-off-by: Bjorn Helgaas
Acked-by: Adam Belay
Signed-off-by: Len Brown -
More manual fixups after Lindent. No functional change.
Signed-off-by: Bjorn Helgaas
Acked-by: Adam Belay
Signed-off-by: Len Brown
27 Jul, 2007
2 commits
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These are manual fixups after running Lindent. No functional change.
Signed-off-by: Bjorn Helgaas
Cc: Len Brown
Cc: Adam Belay
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Run Lindent on all PNP source files.
Produced by:
$ quilt new pnp-lindent
$ find drivers/pnp -name \*.[ch] | xargs quilt add
$ quilt add include/linux/{pnp.h,pnpbios.h}
$ scripts/Lindent drivers/pnp/*.c drivers/pnp/*/*.c include/linux/pnp*.h
$ quilt refresh --sortSigned-off-by: Bjorn Helgaas
Cc: Len Brown
Cc: Adam Belay
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
18 Jul, 2007
2 commits
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Rather than using a tri-state integer for the wait flag in
call_usermodehelper_exec, define a proper enum, and use that. I've
preserved the integer values so that any callers I've missed should
still work OK.Signed-off-by: Jeremy Fitzhardinge
Cc: James Bottomley
Cc: Randy Dunlap
Cc: Christoph Hellwig
Cc: Andi Kleen
Cc: Paul Mackerras
Cc: Johannes Berg
Cc: Ralf Baechle
Cc: Bjorn Helgaas
Cc: Joel Becker
Cc: Tony Luck
Cc: Kay Sievers
Cc: Srivatsa Vaddagiri
Cc: Oleg Nesterov
Cc: David Howells -
Currently, the freezer treats all tasks as freezable, except for the kernel
threads that explicitly set the PF_NOFREEZE flag for themselves. This
approach is problematic, since it requires every kernel thread to either
set PF_NOFREEZE explicitly, or call try_to_freeze(), even if it doesn't
care for the freezing of tasks at all.It seems better to only require the kernel threads that want to or need to
be frozen to use some freezer-related code and to remove any
freezer-related code from the other (nonfreezable) kernel threads, which is
done in this patch.The patch causes all kernel threads to be nonfreezable by default (ie. to
have PF_NOFREEZE set by default) and introduces the set_freezable()
function that should be called by the freezable kernel threads in order to
unset PF_NOFREEZE. It also makes all of the currently freezable kernel
threads call set_freezable(), so it shouldn't cause any (intentional)
change of behaviour to appear. Additionally, it updates documentation to
describe the freezing of tasks more accurately.[akpm@linux-foundation.org: build fixes]
Signed-off-by: Rafael J. Wysocki
Acked-by: Nigel Cunningham
Cc: Pavel Machek
Cc: Oleg Nesterov
Cc: Gautham R Shenoy
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
17 Jul, 2007
1 commit
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Use menuconfigs instead of menus, so the whole menu can be disabled at once
instead of going through all options.Signed-off-by: Jan Engelhardt
Cc: Adam Belay
Cc: Bjorn Helgaas
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
09 May, 2007
2 commits
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This series converts i386 and x86_64 legacy serial ports to be platform
devices and prevents probing for them if we have PNP.This prevents double discovery, where a device was found both by the legacy
probe and by 8250_pnp.This also prevents the serial driver from claiming IRDA devices (unless they
have a UART PNP ID). The serial legacy probe sometimes assumed the wrong IRQ,
so the user had to use "setserial" to fix it.Removing the need for setserial to make IRDA devices work seems good, but it
does break some things. In particular, you may need to keep setserial from
poking legacy UART stuff back in by doing something like "dpkg-reconfigure
setserial" with the "kernel" option. Otherwise, the setserial-discovered
"UART" will claim resources and prevent the IRDA driver from loading.This patch:
If we can discover devices using PNP, we can skip some legacy probes. This
flag ("pnp_platform_devices") indicates that PNPBIOS or PNPACPI is enabled and
should tell us about builtin devices.Signed-off-by: Bjorn Helgaas
Cc: Keith Owens
Cc: Len Brown
Cc: Adam Belay
Cc: Matthieu CASTET
Cc: Jean Tourrilhes
Cc: Matthew Garrett
Cc: Ville Syrjala
Cc: Russell King
Cc: Samuel Ortiz
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patches modifies the pnpbios kernel thread to start with ktrhead_run
not kernel_thread and deamonize. Doing this makes the code a little
simpler and easier to maintain.Signed-off-by: Eric W. Biederman
Cc: Adam Belay
Cc: Bjorn Helgaas
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
12 Feb, 2007
1 commit
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Delete the few remaining unnecessary calls to memset(0) after a call to
kzalloc().Signed-off-by: Robert P. J. Day
Cc: Andi Kleen
Cc: Dmitry Torokhov
Cc: Adam Belay
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
14 Dec, 2006
2 commits
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Run this:
#!/bin/sh
for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do
echo "De-casting $f..."
perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f
doneAnd then go through and reinstate those cases where code is casting pointers
to non-pointers.And then drop a few hunks which conflicted with outstanding work.
Cc: Russell King , Ian Molton
Cc: Mikael Starvik
Cc: Yoshinori Sato
Cc: Roman Zippel
Cc: Geert Uytterhoeven
Cc: Ralf Baechle
Cc: Paul Mackerras
Cc: Kyle McMartin
Cc: Benjamin Herrenschmidt
Cc: Martin Schwidefsky
Cc: "David S. Miller"
Cc: Jeff Dike
Cc: Greg KH
Cc: Jens Axboe
Cc: Paul Fulghum
Cc: Alan Cox
Cc: Karsten Keil
Cc: Mauro Carvalho Chehab
Cc: Jeff Garzik
Cc: James Bottomley
Cc: Ian Kent
Cc: Steven French
Cc: David Woodhouse
Cc: Neil Brown
Cc: Jaroslav Kysela
Cc: Takashi Iwai
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
All kcalloc() calls of the form "kcalloc(1,...)" are converted to the
equivalent kzalloc() calls, and a few kcalloc() calls with the incorrect
ordering of the first two arguments are fixed.Signed-off-by: Robert P. J. Day
Cc: Jeff Garzik
Cc: Alan Cox
Cc: Dominik Brodowski
Cc: Adam Belay
Cc: James Bottomley
Cc: Greg KH
Cc: Mark Fasheh
Cc: Trond Myklebust
Cc: Neil Brown
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
08 Dec, 2006
2 commits
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* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (156 commits)
[PATCH] x86-64: Export smp_call_function_single
[PATCH] i386: Clean up smp_tune_scheduling()
[PATCH] unwinder: move .eh_frame to RODATA
[PATCH] unwinder: fully support linker generated .eh_frame_hdr section
[PATCH] x86-64: don't use set_irq_regs()
[PATCH] x86-64: check vector in setup_ioapic_dest to verify if need setup_IO_APIC_irq
[PATCH] x86-64: Make ix86 default to HIGHMEM4G instead of NOHIGHMEM
[PATCH] i386: replace kmalloc+memset with kzalloc
[PATCH] x86-64: remove remaining pc98 code
[PATCH] x86-64: remove unused variable
[PATCH] x86-64: Fix constraints in atomic_add_return()
[PATCH] x86-64: fix asm constraints in i386 atomic_add_return
[PATCH] x86-64: Correct documentation for bzImage protocol v2.05
[PATCH] x86-64: replace kmalloc+memset with kzalloc in MTRR code
[PATCH] x86-64: Fix numaq build error
[PATCH] x86-64: include/asm-x86_64/cpufeature.h isn't a userspace header
[PATCH] unwinder: Add debugging output to the Dwarf2 unwinder
[PATCH] x86-64: Clarify error message in GART code
[PATCH] x86-64: Fix interrupt race in idle callback (3rd try)
[PATCH] x86-64: Remove unwind stack pointer alignment forcing again
...Fixed conflict in include/linux/uaccess.h manually
Signed-off-by: Linus Torvalds
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Move process freezing functions from include/linux/sched.h to freezer.h, so
that modifications to the freezer or the kernel configuration don't require
recompiling just about everything.[akpm@osdl.org: fix ueagle driver]
Signed-off-by: Nigel Cunningham
Cc: "Rafael J. Wysocki"
Cc: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
07 Dec, 2006
1 commit
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Two legacy power management modes are much easier to just explicitly disable
when running in paravirtualized mode - neither APM nor PnP is still relevant.
The status of ACPI is still debatable, and noacpi is still a common enough
boot parameter that it is not necessary to explicitly disable ACPI.Signed-off-by: Zachary Amsden
Signed-off-by: Chris Wright
Signed-off-by: Andi Kleen
Cc: Rusty Russell
Cc: Jeremy Fitzhardinge
Signed-off-by: Andrew Morton
01 Oct, 2006
1 commit
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ppc can boot one single binary on prep, chrp and pmac boards. ppc64 can
boot one single binary on pseries and G5 boards. pmac has no legacy io,
probing for PC style legacy hardware (or accessing the legacy io area
regulary) may lead to a hard crash:* add check for parport_pc, exit on pmac. 32bit chrp has no
->check_legacy_ioport, the probe is always called. 64bit chrp has
check_legacy_ioport, check for a "parallel" node* add check for isapnp, only PReP boards may have real ISA slots. 32bit
PReP will have no ->check_legacy_ioport, the probe is always called.* update code in i8042_platform_init. Run ->check_legacy_ioport first,
always call request_region. No functional change. Remove whitespace
before i8042_reset init.Signed-off-by: Olaf Hering
Acked-by: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Adam Belay
Cc: Dmitry Torokhov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
01 Aug, 2006
1 commit
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swsusp is unable to suspend my machine (DTK FortisPro TOP-5A notebook) with
kernel 2.6.17.5 because it's unable to suspend PNP device 00:16 (mouse).The problem is in PNP BIOS. pnp_bus_suspend() calls pnp_stop_dev() for the
device if the device can be disabled according to pnp_can_disable(). The
problem is that pnpbios_disable_resources() returns -EPERM if the device is
not dynamic (!pnpbios_is_dynamic()) but insert_device() happily sets
PNP_DISABLE capability/flag even if the device is not dynamic. So we try
to disable non-dynamic devices which will fail. This patch prevents
insert_device() from setting PNP_DISABLE if the device is not dynamic and
fixes suspend on my system.Signed-off-by: Ondrej Zary
Cc: Pavel Machek
Cc: "Rafael J. Wysocki"
Cc: Bjorn Helgaas
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
01 Jul, 2006
1 commit
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Signed-off-by: Jörn Engel
Signed-off-by: Adrian Bunk
23 Mar, 2006
1 commit
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Without the attached, the kernel complains about my BIOS' PNP tables. It
was ACKed before, but never merged:http://marc.theaimsgroup.com/?l=linux-kernel&m=110237794007900&w=2
Cc: Adam Belay
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
07 Jan, 2006
4 commits
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PnP BIOS data, code, and 32-bit entry segments all have fixed limits as well;
set them in the GDT rather than adding more code. It would be nice to add
these fixups to the boot GDT rather than setting the GDT for each CPU; perhaps
I can wiggle this in later, but getting it in before the subsys init looks
tricky.Also, make some progress on deprecating the ugly Q_SET_SEL macros.
Signed-off-by: Zachary Amsden
Cc: "Seth, Rohit"
Cc: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The one remaining caller of set_limit, the PnP BIOS code, calls into the PnP
BIOS, passing kernel parameters in and out. These parameteres may be passed
from arbitrary kernel virtual memory, so they deserve strict protection to
stop a bad BIOS from smashing beyond the object size.Unfortunately, the use of set_limit was badly botching this by setting the
limit in terms of pages, when it really should have byte granularity.When doing this, I discovered my BIOS had the buggy code during the "get
system device node" call:mov ax, es:[bx]
Which is harmless, but has a trivial workaround.
Signed-off-by: Zachary Amsden
Cc: "Seth, Rohit"
Cc: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Move PnP BIOS segment definitions into segment.h; the segments are reserved
here, so they might as well be defined here as well.Note I didn't do this for APM BIOS, as Macintosh and other systems use those
values to emulate APM in some scary way I don't want to understand.Signed-off-by: Zachary Amsden
Acked-by: "Seth, Rohit"
Cc: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make GDT page aligned and page padded to support running inside of a
hypervisor. This prevents false sharing of the GDT page with other hot
data, which is not allowed in Xen, and causes performance problems in
VMware.Rather than go back to the old method of statically allocating the GDT
(which wastes unneded space for non-present CPUs), the GDT for APs is
allocated dynamically.Signed-off-by: Zachary Amsden
Cc: "Seth, Rohit"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
05 Jan, 2006
1 commit
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These days we use udev to manage all kernel events. /proc/sys/kernel/hotplug
will usually be disabled by an init-script. pnpnbios is not integrated with
the driver core and should stay away from the now disabled /sbin/hotplug.Set the helper to /sbin/phpbios, even when there is probably no current
user of this faciliy. If it's needed, it should definitely get proper driver
core integration instead of forking binaries from the kernel.Signed-off-by: Kay Sievers
Signed-off-by: Greg Kroah-Hartman
31 Oct, 2005
1 commit
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I recently picked up my older work to remove unnecessary #includes of
sched.h, starting from a patch by Dave Jones to not include sched.h
from module.h. This reduces the number of indirect includes of sched.h
by ~300. Another ~400 pointless direct includes can be removed after
this disentangling (patch to follow later).
However, quite a few indirect includes need to be fixed up for this.In order to feed the patches through -mm with as little disturbance as
possible, I've split out the fixes I accumulated up to now (complete for
i386 and x86_64, more archs to follow later) and post them before the real
patch. This way this large part of the patch is kept simple with only
adding #includes, and all hunks are independent of each other. So if any
hunk rejects or gets in the way of other patches, just drop it. My scripts
will pick it up again in the next round.Signed-off-by: Tim Schmielau
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
08 Sep, 2005
1 commit
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ISAPNP, PNPBIOS, and PNPACPI all had their own kmalloc wrappers that
reimplemented kcalloc(). Remove the wrappers and just use kcalloc()
directly.Note that this also removes the PNPBIOS error message when the kmalloc
fails.Signed-off-by: Bjorn Helgaas
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
28 Jul, 2005
1 commit
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drivers/pnp/pnpbios/rsparser.c: In function 'pnpbios_parse_allocated_irqresource':
drivers/pnp/pnpbios/rsparser.c:67: error: too many arguments to function 'pcibios_penalize_isa_irq'Signed-off-by: Adrian Bunk
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
13 Jul, 2005
1 commit
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Signed-off-by: Len Brown
12 Jul, 2005
1 commit
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http://bugme.osdl.org/show_bug.cgi?id=4016
Written-by: David Shaohua Li
Acked-by: Adam Belay
Signed-off-by: Len Brown
26 Jun, 2005
1 commit
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1. Establish a simple API for process freezing defined in linux/include/sched.h:
frozen(process) Check for frozen process
freezing(process) Check if a process is being frozen
freeze(process) Tell a process to freeze (go to refrigerator)
thaw_process(process) Restart process
frozen_process(process) Process is frozen now2. Remove all references to PF_FREEZE and PF_FROZEN from all
kernel sources except sched.h3. Fix numerous locations where try_to_freeze is manually done by a driver
4. Remove the argument that is no longer necessary from two function calls.
5. Some whitespace cleanup
6. Clear potential race in refrigerator (provides an open window of PF_FREEZE
cleared before setting PF_FROZEN, recalc_sigpending does not check
PF_FROZEN).This patch does not address the problem of freeze_processes() violating the rule
that a task may only modify its own flags by setting PF_FREEZE. This is not clean
in an SMP environment. freeze(process) is therefore not SMP safe!Signed-off-by: Christoph Lameter
Signed-off-by: Linus Torvalds
01 May, 2005
1 commit
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This patch fixes an array overflow found by the Coverity checker.
Signed-off-by: Adrian Bunk
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
17 Apr, 2005
2 commits
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one of the last buildcheck errors on i386, thanks Randy again for double
checking.Fix pnpbios section references:
make dmi_system_id pnpbios_dmi_table __initdataError: ./drivers/pnp/pnpbios/core.o .data refers to 00000100 R_386_32
.init.text
Error: ./drivers/pnp/pnpbios/core.o .data refers to 0000012c R_386_32
.init.textSigned-off-by: maximilian attems
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.Let it rip!
