Eric Lee / smarc-fsl-linux-kernel

26 May, 2011

1 commit

09 Jan, 2011

1 commit

30 Mar, 2010

1 commit

  • 5a0e3ad6a   include cleanup: Update gfp.h and slab.h includes to prepare for breaking implic… ... Browse Code »

    …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
     

23 Sep, 2009

1 commit

07 Jan, 2009

2 commits

  • c8ac32e47   hwmon: (lm70) Add TI TMP121 support ... Browse Code »

    The Texas Instruments TMP121 is a SPI temperature sensor very similar
    to the LM70, with slightly higher resolution. This patch extends the
    LM70 driver to support the TMP121. The TMP123 differs in pin assign-
    ment.

    Signed-off-by: Manuel Lauss
    Signed-off-by: Jean Delvare

    Manuel Lauss
     
  • 2b7300513   hwmon: (lm70) Code streamlining and cleanup ... Browse Code »

    This fixes a byteswap bug in the LM70 temperature sensor driver,
    which was previously covered up by a converse bug in the driver
    for the LM70EVAL-LLP board (which is also fixed).

    Other fixes: doc updates, remove an annoying msleep(), and improve
    three-wire protocol handling.

    Signed-off-by: Kaiwan N Billimoria
    [ dbrownell@users.sourceforge.net: doc and whitespace tweaks ]
    Signed-off-by: David Brownell
    Signed-off-by: Jean Delvare

    Kaiwan N Billimoria
     

08 Nov, 2007

1 commit

10 Oct, 2007

2 commits

  • 1beeffe43   hwmon: Convert from class_device to device ... Browse Code »

    Convert from class_device to device for hwmon_device_register/unregister

    Signed-off-by: Tony Jones
    Signed-off-by: Greg Kroah-Hartman
    Signed-off-by: Kay Sievers
    Signed-off-by: Mark M. Hoffman

    Tony Jones
     
  • 67f921d16   hwmon: (lm70) Add a name attribute ... Browse Code »

    Add a name attribute to the lm70 devices. This is required for
    libsensors to recognize them.

    Also drop the "+" before the temperature value, even though it did
    not cause problems to libsensors, other hardware monitoring drivers
    don't print it, so it's more consistent that way.

    Signed-off-by: Jean Delvare
    Acked-by: Hans de Goede
    Acked-by: Kaiwan
    Signed-off-by: Mark M. Hoffman

    Jean Delvare
     

18 Jul, 2007

1 commit

  • c06e677ae   SPI: add 3wire mode flag ... Browse Code »

    Add a new spi->mode bit: SPI_3WIRE, for chips where the SI and SO signals
    are shared (and which are thus only half duplex). Update the LM70 driver
    to require support for that hardware mode from the controller.

    Signed-off-by: David Brownell
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David Brownell
     

15 Feb, 2007

1 commit

23 Jun, 2006

1 commit

  • e1a8e913f   [PATCH] lm70: New hardware monitoring driver ... Browse Code »

    This driver implements support for the National Semiconductor LM70
    temperature sensor.

    The LM70 temperature sensor chip supports a single temperature sensor.
    It communicates with a host processor (or microcontroller) via an
    SPI/Microwire Bus interface.

    Communication with the LM70 is simple: when the temperature is to be sensed,
    the driver accesses the LM70 using SPI communication: 16 SCLK cycles
    comprise the MOSI/MISO loop. At the end of the transfer, the 11-bit 2's
    complement digital temperature (sent via the SIO line), is available in the
    driver for interpretation. This driver makes use of the kernel's in-core
    SPI support.

    Signed-off-by: Kaiwan N Billimoria
    Signed-off-by: Jean Delvare
    Signed-off-by: Greg Kroah-Hartman

    Kaiwan N Billimoria