19 Dec, 2011

1 commit

  • module_param(bool) used to counter-intuitively take an int. In
    fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy
    trick.

    It's time to remove the int/unsigned int option. For this version
    it'll simply give a warning, but it'll break next kernel version.

    Signed-off-by: Rusty Russell
    Signed-off-by: Takashi Iwai

    Rusty Russell
     

01 Nov, 2011

1 commit


10 Jun, 2011

2 commits

  • The name argument of request_irq() appears in /proc/interrupts, and
    it's quite ugly when the name entry contains a space or special letters.
    In general, it's simpler and more readable when the module name appears
    there, so let's replace all entries with KBUILD_MODNAME.

    Signed-off-by: Takashi Iwai

    Takashi Iwai
     
  • The convention for pci_driver.name entry in kernel drivers seem to be
    the module name or equivalent ones. But, so far, almost all PCI sound
    drivers use more verbose name like "ABC Xyz (12)", and these are fairly
    confusing when appearing as a file name.

    This patch converts the all pci_driver.name entries in sound/pci/* to
    use KBUILD_MODNAME for more unified appearance.

    Signed-off-by: Takashi Iwai

    Takashi Iwai
     

30 Mar, 2010

1 commit

  • …it slab.h inclusion from percpu.h

    percpu.h is included by sched.h and module.h and thus ends up being
    included when building most .c files. percpu.h includes slab.h which
    in turn includes gfp.h making everything defined by the two files
    universally available and complicating inclusion dependencies.

    percpu.h -> slab.h dependency is about to be removed. Prepare for
    this change by updating users of gfp and slab facilities include those
    headers directly instead of assuming availability. As this conversion
    needs to touch large number of source files, the following script is
    used as the basis of conversion.

    http://userweb.kernel.org/~tj/misc/slabh-sweep.py

    The script does the followings.

    * Scan files for gfp and slab usages and update includes such that
    only the necessary includes are there. ie. if only gfp is used,
    gfp.h, if slab is used, slab.h.

    * When the script inserts a new include, it looks at the include
    blocks and try to put the new include such that its order conforms
    to its surrounding. It's put in the include block which contains
    core kernel includes, in the same order that the rest are ordered -
    alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
    doesn't seem to be any matching order.

    * If the script can't find a place to put a new include (mostly
    because the file doesn't have fitting include block), it prints out
    an error message indicating which .h file needs to be added to the
    file.

    The conversion was done in the following steps.

    1. The initial automatic conversion of all .c files updated slightly
    over 4000 files, deleting around 700 includes and adding ~480 gfp.h
    and ~3000 slab.h inclusions. The script emitted errors for ~400
    files.

    2. Each error was manually checked. Some didn't need the inclusion,
    some needed manual addition while adding it to implementation .h or
    embedding .c file was more appropriate for others. This step added
    inclusions to around 150 files.

    3. The script was run again and the output was compared to the edits
    from #2 to make sure no file was left behind.

    4. Several build tests were done and a couple of problems were fixed.
    e.g. lib/decompress_*.c used malloc/free() wrappers around slab
    APIs requiring slab.h to be added manually.

    5. The script was run on all .h files but without automatically
    editing them as sprinkling gfp.h and slab.h inclusions around .h
    files could easily lead to inclusion dependency hell. Most gfp.h
    inclusion directives were ignored as stuff from gfp.h was usually
    wildly available and often used in preprocessor macros. Each
    slab.h inclusion directive was examined and added manually as
    necessary.

    6. percpu.h was updated not to include slab.h.

    7. Build test were done on the following configurations and failures
    were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
    distributed build env didn't work with gcov compiles) and a few
    more options had to be turned off depending on archs to make things
    build (like ipr on powerpc/64 which failed due to missing writeq).

    * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
    * powerpc and powerpc64 SMP allmodconfig
    * sparc and sparc64 SMP allmodconfig
    * ia64 SMP allmodconfig
    * s390 SMP allmodconfig
    * alpha SMP allmodconfig
    * um on x86_64 SMP allmodconfig

    8. percpu.h modifications were reverted so that it could be applied as
    a separate patch and serve as bisection point.

    Given the fact that I had only a couple of failures from tests on step
    6, I'm fairly confident about the coverage of this conversion patch.
    If there is a breakage, it's likely to be something in one of the arch
    headers which should be easily discoverable easily on most builds of
    the specific arch.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

    Tejun Heo
     

09 Feb, 2010

1 commit


25 Jun, 2009

1 commit


12 Jan, 2009

1 commit


24 Apr, 2008

1 commit


01 Feb, 2008

1 commit

  • This header file exists only for some hacks to adapt alsa-driver
    tree. It's useless for building in the kernel. Let's move a few
    lines in it to sound/core.h and remove it.
    With this patch, sound/driver.h isn't removed but has just a single
    compile warning to include it. This should be really killed in
    future.

    Signed-off-by: Takashi Iwai
    Signed-off-by: Jaroslav Kysela

    Takashi Iwai
     

16 Oct, 2007

2 commits


11 May, 2007

1 commit


20 Dec, 2006

1 commit

  • Fix IRQ flags for PCI devices.
    The shared IRQs for PCI devices shouldn't be allocated with
    IRQF_DISABLED. Also, when MSI is enabled, IRQF_SHARED shouldn't
    be used.
    The patch removes unnecessary cast in request_irq and free_irq,
    too.

    Signed-off-by: Takashi Iwai
    Signed-off-by: Jaroslav Kysela

    Takashi Iwai
     

05 Oct, 2006

1 commit

  • Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
    of passing regs around manually through all ~1800 interrupt handlers in the
    Linux kernel.

    The regs pointer is used in few places, but it potentially costs both stack
    space and code to pass it around. On the FRV arch, removing the regs parameter
    from all the genirq function results in a 20% speed up of the IRQ exit path
    (ie: from leaving timer_interrupt() to leaving do_IRQ()).

    Where appropriate, an arch may override the generic storage facility and do
    something different with the variable. On FRV, for instance, the address is
    maintained in GR28 at all times inside the kernel as part of general exception
    handling.

    Having looked over the code, it appears that the parameter may be handed down
    through up to twenty or so layers of functions. Consider a USB character
    device attached to a USB hub, attached to a USB controller that posts its
    interrupts through a cascaded auxiliary interrupt controller. A character
    device driver may want to pass regs to the sysrq handler through the input
    layer which adds another few layers of parameter passing.

    I've build this code with allyesconfig for x86_64 and i386. I've runtested the
    main part of the code on FRV and i386, though I can't test most of the drivers.
    I've also done partial conversion for powerpc and MIPS - these at least compile
    with minimal configurations.

    This will affect all archs. Mostly the changes should be relatively easy.
    Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

    struct pt_regs *old_regs = set_irq_regs(regs);

    And put the old one back at the end:

    set_irq_regs(old_regs);

    Don't pass regs through to generic_handle_irq() or __do_IRQ().

    In timer_interrupt(), this sort of change will be necessary:

    - update_process_times(user_mode(regs));
    - profile_tick(CPU_PROFILING, regs);
    + update_process_times(user_mode(get_irq_regs()));
    + profile_tick(CPU_PROFILING);

    I'd like to move update_process_times()'s use of get_irq_regs() into itself,
    except that i386, alone of the archs, uses something other than user_mode().

    Some notes on the interrupt handling in the drivers:

    (*) input_dev() is now gone entirely. The regs pointer is no longer stored in
    the input_dev struct.

    (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does
    something different depending on whether it's been supplied with a regs
    pointer or not.

    (*) Various IRQ handler function pointers have been moved to type
    irq_handler_t.

    Signed-Off-By: David Howells
    (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)

    David Howells
     

13 Jul, 2006

1 commit


03 Jul, 2006

1 commit


23 Jun, 2006

2 commits


28 Apr, 2006

1 commit


29 Mar, 2006

1 commit


03 Jan, 2006

1 commit


11 Nov, 2005

1 commit


04 Nov, 2005

1 commit


15 Sep, 2005

1 commit

  • While doing an allyesconfig build, I noticed that the commit

    commit 8cdfd2519c6c9a1e6057dc5970b2542b35895738
    Author: Takashi Iwai
    Date: Wed Sep 7 14:08:11 2005 +0200

    [ALSA] Remove superfluous PCI ID definitions

    broke the RME32 and RME96 drivers, since the PCI IDs they use seem to have
    changed names. Here's a patch to fix this -- compile tested only, since I
    have no idea what the hardware even is.

    Fix the build of the RME32 and RME96 drivers by having them use the
    PCI_DEVICE_ID_RME_xxx names defined in instead of the
    PCI_DEVICE_ID_xxx names that they used to define themselves.

    Also fix the typo in the id PCI_DEVICE_IDRME__DIGI96_8_PAD_OR_PST so the
    name is PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST.

    Signed-off-by: Roland Dreier
    Acked-by: Takashi Iwai
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Roland Dreier
     

12 Sep, 2005

3 commits

  • AD1889 driver,ALS4000 driver,ATIIXP driver,ATIIXP-modem driver
    AZT3328 driver,BT87x driver,CMIPCI driver,CS4281 driver
    ENS1370/1+ driver,ES1938 driver,ES1968 driver,FM801 driver
    Intel8x0 driver,Intel8x0-modem driver,Maestro3 driver,RME32 driver
    RME96 driver,SonicVibes driver,VIA82xx driver,VIA82xx-modem driver
    ALI5451 driver,au88x0 driver,CS46xx driver,EMU10K1/EMU10K2 driver
    HDA Intel driver,ICE1712 driver,ICE1724 driver,KORG1212 driver
    MIXART driver,NM256 driver,RME HDSP driver,RME9652 driver
    Trident driver,Digigram VX222 driver,YMFPCI driver
    Set the module owner field in each driver's struct pci_driver to get
    the driver symlink in the sysfs device directory.

    Signed-off-by: Clemens Ladisch

    Clemens Ladisch
     
  • CS46xx driver,EMU10K1/EMU10K2 driver,PCM Midlevel,Trident driver
    YMFPCI driver,BT87x driver,CMIPCI driver,CS4281 driver
    ENS1370/1+ driver,ES1938 driver,ES1968 driver,Intel8x0 driver
    Intel8x0-modem driver,Maestro3 driver,RME32 driver,RME96 driver
    SonicVibes driver,VIA82xx driver,ALI5451 driver,ICE1712 driver
    ICE1724 driver,NM256 driver,RME HDSP driver,RME9652 driver
    Remove superfluous PCI ID definitions.

    Signed-off-by: Takashi Iwai

    Takashi Iwai
     
  • ALSA Core,RawMidi Midlevel,ALSA

    Clemens Ladisch
     

30 Aug, 2005

1 commit

  • Documentation,CS46xx driver,EMU10K1/EMU10K2 driver,AD1848 driver
    SB16/AWE driver,CMIPCI driver,ENS1370/1+ driver,RME32 driver
    RME96 driver,ICE1712 driver,ICE1724 driver,KORG1212 driver
    RME HDSP driver,RME9652 driver
    This patch changes .iface to SNDRV_CTL_ELEM_IFACE_MIXER whre _PCM or
    _HWDEP was used in controls that are not associated with a specific PCM
    (sub)stream or hwdep device, and changes some controls that got
    inconsitent .iface values due to copy+paste errors. Furthermore, it
    makes sure that all control that do use _PCM or _HWDEP use the correct
    number in the .device field.

    Signed-off-by: Clemens Ladisch

    Clemens Ladisch
     

29 May, 2005

1 commit

  • Documentation,ALS4000 driver,ATIIXP driver,ATIIXP-modem driver
    AZT3328 driver,BT87x driver,CMIPCI driver,CS4281 driver
    ENS1370/1+ driver,ES1938 driver,ES1968 driver,FM801 driver
    Intel8x0 driver,Intel8x0-modem driver,Maestro3 driver,RME32 driver
    RME96 driver,SonicVibes driver,VIA82xx driver,VIA82xx-modem driver
    ALI5451 driver,au88x0 driver,CA0106 driver,CS46xx driver
    EMU10K1/EMU10K2 driver,HDA Intel driver,ICE1712 driver,ICE1724 driver
    KORG1212 driver,MIXART driver,NM256 driver,RME HDSP driver
    RME9652 driver,Trident driver,Digigram VX222 driver,YMFPCI driver
    Replace the obsolete pci_module_init() with pci_register_driver().

    Signed-off-by: Takashi Iwai

    Takashi Iwai
     

17 Apr, 2005

1 commit

  • 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!

    Linus Torvalds