Eric Lee / smarc-fsl-linux-kernel

10 Oct, 2007

1 commit

  • 1855256c4   drivers/firmware: const-ify DMI API and internals ... Browse Code »

    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

    Jeff Garzik
     

12 Sep, 2007

1 commit

  • b70ae1d9f   PNP: remove SMCf010 quirk ... Browse Code »

    If the quirk enables the SIR part of the SMCf010 device, the 8250 driver
    may claim it as a legacy ttyS device, which makes the legacy probe in the
    smsc-ircc2 driver fail.

    Signed-off-by: Bjorn Helgaas
    Cc: Andrey Borzenkov
    Cc: Michal Piotrowski
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Bjorn Helgaas
     

24 Aug, 2007

6 commits

30 Jul, 2007

1 commit

  • 673d5b43d   ACPI: restore CONFIG_ACPI_SLEEP ... Browse Code »

    Restore the 2.6.22 CONFIG_ACPI_SLEEP build option, but now shadowing the
    new CONFIG_PM_SLEEP option.

    Signed-off-by: Len Brown
    [ Modified to work with the PM config setup changes. ]
    Signed-off-by: Linus Torvalds

    Len Brown
     

27 Jul, 2007

2 commits

  • 07d4e9af1   PNP: fix up after Lindent ... Browse Code »

    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

    Bjorn Helgaas
     
  • 9dd78466c   PNP: Lindent all source files ... Browse Code »

    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 --sort

    Signed-off-by: Bjorn Helgaas
    Cc: Len Brown
    Cc: Adam Belay
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Bjorn Helgaas
     

25 Jul, 2007

1 commit

24 Jul, 2007

1 commit

  • 29b71a1ca   ACPI: autoload modules - Create ACPI alias interface ... Browse Code »

    Modify modpost (file2alias.c) to add acpi*:XYZ0001: alias in modules.alias
    like:
    grep acpi /lib/modules/2.6.22-rc4-default/modules.alias
    alias acpi*:SNY5001:* sony_laptop
    alias acpi*:SNY6001:* sony_laptop
    for e.g. the sony_laptop module.
    This module matches against all ACPI devices with a HID or CID of SNY5001
    or SNY6001

    Export an uevent and modalias sysfs file containing the string:
    [MODALIAS=]acpi:PNP0C0C:
    additional CIDs are concatenated at the end.

    Signed-off-by: Thomas Renninger
    Signed-off-by: Kay Sievers
    Signed-off-by: Len Brown

    Thomas Renninger
     

22 Jul, 2007

1 commit

20 Jul, 2007

1 commit

  • dd00cc486   some kmalloc/memset ->kzalloc (tree wide) ... Browse Code »

    Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc).

    Here is a short excerpt of the semantic patch performing
    this transformation:

    @@
    type T2;
    expression x;
    identifier f,fld;
    expression E;
    expression E1,E2;
    expression e1,e2,e3,y;
    statement S;
    @@

    x =
    - kmalloc
    + kzalloc
    (E1,E2)
    ... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\)
    - memset((T2)x,0,E1);

    @@
    expression E1,E2,E3;
    @@

    - kzalloc(E1 * E2,E3)
    + kcalloc(E1,E2,E3)

    [akpm@linux-foundation.org: get kcalloc args the right way around]
    Signed-off-by: Yoann Padioleau
    Cc: Richard Henderson
    Cc: Ivan Kokshaysky
    Acked-by: Russell King
    Cc: Bryan Wu
    Acked-by: Jiri Slaby
    Cc: Dave Airlie
    Acked-by: Roland Dreier
    Cc: Jiri Kosina
    Acked-by: Dmitry Torokhov
    Cc: Benjamin Herrenschmidt
    Acked-by: Mauro Carvalho Chehab
    Acked-by: Pierre Ossman
    Cc: Jeff Garzik
    Cc: "David S. Miller"
    Acked-by: Greg KH
    Cc: James Bottomley
    Cc: "Antonino A. Daplas"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Yoann Padioleau
     

18 Jul, 2007

2 commits

  • 86313c488   usermodehelper: Tidy up waiting ... Browse Code »

    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

    Jeremy Fitzhardinge
     
  • 831441862   Freezer: make kernel threads nonfreezable by default ... Browse Code »

    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

    Rafael J. Wysocki
     

17 Jul, 2007

2 commits

  • b2111217d   isapnp: remove pointless check of 'type' against 0 in isapnp_read_tag() ... Browse Code »

    In drivers/pnp/isapnp/core.c::isapnp_read_tag() there is a test of 'type'
    being == 0 a bit down in the function. That test doesn't make any sense.
    If 'type' could indeed be NULL, then the test happens way too late as we'd
    already have tried to dereference the pointer earlier and looking at the
    callers it also turns out that there is no way type can ever actually be
    NULL.

    So the test is completely pointless and should just be removed.

    Signed-off-by: Jesper Juhl
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jesper Juhl
     
  • 5c493f5c9   Use menuconfig objects: PNP ... Browse Code »

    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

    Jan Engelhardt
     

07 Jul, 2007

1 commit

  • 41a531146   PNP SMCf010 quirk: work around Toshiba Portege 4000 ACPI issues ... Browse Code »

    When we enable the SMCf010 IR device, the Toshiba Portege 4000 BIOS claims
    the device is working, but it really isn't configured correctly. The BIOS
    *will* configure it, but only if we call _SRS after (1) reversing the order
    of the SIR and FIR I/O port regions and (2) changing the IRQ from
    active-high to active-low.

    This patch addresses the 2.6.22 regression:
    "no irda0 interface (2.6.21 was OK), smsc does not find chip"

    I tested this on a Portege 4000. The smsc-ircc2 driver correctly detects
    the device, and "irattach irda0 -s && irdadump" shows transmitted and
    received packets.

    Signed-off-by: Bjorn Helgaas
    Cc: Andrey Borzenkov
    Cc: Samuel Ortiz
    Cc: "Linus Walleij (LD/EAB)"
    Cc: Michal Piotrowski
    Cc: Adam Belay
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Bjorn Helgaas
     

29 Jun, 2007

1 commit

  • 172d0496c   PNP SMCf010 quirk: auto-config device if BIOS left it broken ... Browse Code »

    Some HP firmware leaves the SMCf010 IRDA device incompletely configured, or
    reports the wrong resources in _CRS. As a workaround, when we find such a
    device, try to auto-configure the device.

    This ignores the _CRS data, picks a config from _PRS, and runs _SRS to
    configure the device. This makes smsc-ircc2 work correctly with PNP
    resources (with no preconfiguration!) on all the machines I tested.

    I think Windows does something like this by default for all devices,
    so we should consider doing the same thing in Linux.

    This patch addresses part of the 2.6.22 regression:
    "no irda0 interface (2.6.21 was OK), smsc does not find chip"
    It fixes smsc-ircc2 PNP device detection on HP nc6000, nc6220, nw8000,
    nw8240, and possibly other machines.

    Signed-off-by: Bjorn Helgaas
    Cc: Samuel Ortiz
    Cc: "Linus Walleij (LD/EAB)"
    Cc: Andrey Borzenkov
    Cc: Michal Piotrowski
    Cc: Adam Belay
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Bjorn Helgaas
     

10 May, 2007

1 commit

09 May, 2007

5 commits

  • a1e7e636f   PNP: workaround HP BIOS defect that leaves SMCF010 device partly enabled ... Browse Code »

    Some HP/Compaq firmware reports via ACPI that the SMCF010 IR device is
    enabled, but in fact, it leaves the device partly disabled.

    HP nw8240 BIOS 68DTV Ver. F.0F, released 9/15/2005 is one BIOS that has this
    problem.

    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

    Bjorn Helgaas
     
  • 8f81dd149   PNP: notice whether we have PNP devices (PNPBIOS or PNPACPI) ... Browse Code »

    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

    Bjorn Helgaas
     
  • db9c02fa8   pnpbios: convert to use the kthread API ... Browse Code »

    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

    Eric W. Biederman
     
  • 55955aad7   PNPACPI sets pnpdev->dev.archdata ... Browse Code »

    Teach PNPACPI how to hook up its devices to their ACPI nodes, so that
    pnpdev->dev.archdata points to the parallel acpi device node. Previously
    this only worked for PCI, leaving a notable hole.

    Export "acpi_bus_type" so this can work.

    Remove some extraneous whitespace.

    Signed-off-by: David Brownell
    Cc: Adam Belay
    Cc: Bjorn Helgaas
    Cc: Len Brown
    Cc: Greg KH
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David Brownell
     
  • 2e17c5508   init dma masks in pnp_dev ... Browse Code »

    PNP now initializes device dma masks, which prevents oopses when generic
    dma calls are made using pnp device nodes.

    This assumes PNP only uses ISA DMA, with 24 bit addresses; and that it's
    safe to init those masks for all devices (rather than finding out which
    devices have been assigned DMA channels, and handling only those).

    Signed-off-by: David Brownell
    Cc: Adam Belay
    Cc: Jaroslav Kysela
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David Brownell
     

28 Apr, 2007

1 commit

03 Apr, 2007

1 commit

  • a2b091dbf   [PATCH] Correctly report PnP 64bit resources ... Browse Code »

    Change PnP resource handling code to use proper type for resource start and
    length. Fixes bogus regions reported in /proc/iomem.

    I've also made some pointer constant, as they are constant...

    Signed-off-by: Petr Vandrovec
    Cc: Bjorn Helgaas
    Cc: Adam Belay
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Petr Vandrovec
     

17 Mar, 2007

1 commit

  • 48670a1e0   [PATCH] reduce pnp syslog spam ... Browse Code »

    Make some normal code paths in PNP stop issuing syslog spam. Since PNP
    issues calls regardless of device capablities, it's no surprise when some
    of those devices don't support those calls!

    Signed-off-by: David Brownell
    Cc: Adam Belay
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David Brownell
     

09 Mar, 2007

1 commit

17 Feb, 2007

1 commit

16 Feb, 2007

1 commit

13 Feb, 2007

1 commit

  • d54b1fdb1   [PATCH] mark struct file_operations const 5 ... Browse Code »

    Many struct file_operations in the kernel can be "const". Marking them const
    moves these to the .rodata section, which avoids false sharing with potential
    dirty data. In addition it'll catch accidental writes at compile time to
    these shared resources.

    Signed-off-by: Arjan van de Ven
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arjan van de Ven
     

12 Feb, 2007

2 commits

  • 3de3af130   [PATCH] Remove unnecessary memset(0) calls after kzalloc() calls. ... Browse Code »

    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

    Robert P. J. Day
     
  • cbcdc1deb   [PATCH] PNP: export pnp_bus_type ... Browse Code »

    The PNP framework doesn't export "pnp_bus_type", which is an unfortunate
    exception to the policy followed by pretty much every other bus. I noticed
    this when I had to find a device in order to provide its platform_data.

    Note that per advice from Arjan, the "export" scope has been been minimized to
    avoid the hundred-plus bytes needed to support access from modules. In this
    case, the symbol is only needed by statically linked kernel code that lives
    outside the drivers/pnp directory.

    Signed-off-by: David Brownell
    Cc: Adam Belay
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David Brownell
     

26 Jan, 2007

3 commits

14 Dec, 2006

1 commit

  • 5cbded585   [PATCH] getting rid of all casts of k[cmz]alloc() calls ... Browse Code »

    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
    done

    And 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

    Robert P. J. Day