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


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
     

12 Jan, 2009

1 commit


01 Feb, 2008

2 commits

  • 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
     
  • Added the missing call of snd_card_set_dev() in drivers/*

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

    Takashi Iwai
     

21 Nov, 2007

1 commit

  • Reported by Ingo Molnar,
    when booting an allyesconfig bzImage kernel the bootup hangs in the
    portman2x4 driver (on a box that does not have this hardware), at:
    Pid: 1, comm: swapper
    EIP: 0060:[] CPU: 0
    EIP is at parport_pc_read_status+0x4/0x8
    EFLAGS: 00000202 Not tainted (2.6.23-rc9 #904)
    EAX: f7e57a7f EBX: 00000010 ECX: c2b808c0 EDX: 00000379
    ESI: f7cb8230 EDI: 00000010 EBP: f7cb8230 DS: 007b ES: 007b FS: 0000
    CR0: 8005003b CR2: fff9c000 CR3: 007ec000 CR4: 00000690
    DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
    DR6: ffff0ff0 DR7: 00000400
    [] portman_flush_input+0xde/0x12c
    [] snd_portman_probe+0x368/0x484
    [] __device_attach+0x0/0x8
    [] platform_drv_probe+0xc/0x10
    [] driver_probe_device+0x74/0x194
    [] klist_next+0x38/0x70
    [] __device_attach+0x0/0x8
    [] bus_for_each_drv+0x35/0x68
    [] device_attach+0x72/0x78
    the reason is due to an inconsistent error return code of 1 or 2, while
    snd_portman_probe only realizes negative error codes.

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

    Takashi Iwai
     

24 Oct, 2007

1 commit


20 Jul, 2007

1 commit

  • FIx section mismatch when CONFIG_HOTPLUG=n:
    WARNING: sound/built-in.o(.exit.text+0x271): Section mismatch: reference to .init.text:snd_p
    ortman_unregister_all (between 'snd_portman_module_exit' and 'alsa_mpu401_uart_exit')

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

    Randy Dunlap
     

11 May, 2007

1 commit

  • The platform_device allocated by platform_device_alloc()
    should be added to the device hierarchy by platform_device_add()
    instead of platform_device_register().
    Otherwise it will hit WARN_ON() in platform_device_register().
    by illegal refcount.
    This patch fixes such incorrect usages in portman2x4 and mts64 drivers.
    Also it removes unnecessary trailing whitespaces.

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

    Akinobu Mita
     

14 Feb, 2007

2 commits

  • Fix a typo in the last __dev* changes in portman2x4.c.

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

    Takashi Iwai
     
  • Fix __devinit and __devexit issues with sound drivers.
    Resolves MODPOST warnings similar to:
    WARNING: sound/drivers/snd-dummy.o - Section mismatch: reference to .init.text:snd_dummy_probe from .data.rel.local between 'snd_dummy_driver' (at offset 0x0) and 'snd_dummy_controls'
    WARNING: sound/drivers/snd-mtpav.o - Section mismatch: reference to .init.text:snd_mtpav_probe from .data.rel.local between 'snd_mtpav_driver' (at offset 0x0) and 'snd_mtpav_input'
    WARNING: sound/drivers/snd-virmidi.o - Section mismatch: reference to .init.text:snd_virmidi_probe from .data.rel.local after 'snd_virmidi_driver' (at offset 0x0)

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

    Prarit Bhargava
     

09 Feb, 2007

1 commit