Eric Lee / smarc-fsl-linux-kernel

18 Sep, 2016

1 commit

  • becf05e74   iio: common: ssp_sensors: gyro: constify iio_info structures ... Browse Code »

    Check for iio_info structures that are only stored in the info field of a
    iio_dev structure. This field is declared const, so iio_info structures
    that have this property can be declared as const also.

    The semantic patch that makes this change is as follows:
    (http://coccinelle.lip6.fr/)

    //
    @r disable optional_qualifier@
    identifier i;
    position p;
    @@
    static struct iio_info i@p = { ... };

    @ok@
    identifier r.i;
    struct iio_dev e;
    position p;
    @@
    e.info = &i@p;

    @bad@
    position p != {r.p,ok.p};
    identifier r.i;
    struct iio_info e;
    @@
    e@i@p

    @depends on !bad disable optional_qualifier@
    identifier r.i;
    @@
    static
    +const
    struct iio_info i = { ... };
    //

    The result of size on this file before the change is:
    text data bss dec hex filename
    1245 344 0 1589 635
    drivers/iio/gyro/ssp_gyro_sensor.o

    and after the change it is:
    text data bss dec hex filename
    1397 192 0 1589 635
    drivers/iio/gyro/ssp_gyro_sensor.o

    Signed-off-by: Julia Lawall
    Signed-off-by: Jonathan Cameron

    Julia Lawall
     

30 Jan, 2015

1 commit