Eric Lee / smarc-fsl-linux-kernel

13 Aug, 2020

1 commit

  • 403f17730   lib/test_bitops: do the full test during module init ... Browse Code »

    Currently, the bitops test consists of two parts: one part is executed
    during module load, the second part during module unload. This is
    cumbersome for the user, as he has to perform two steps to execute all
    tests, and is different from most (all?) other tests.

    Merge the two parts, so both are executed during module load.

    Signed-off-by: Geert Uytterhoeven
    Signed-off-by: Andrew Morton
    Reviewed-by: Andy Shevchenko
    Cc: Wei Yang
    Cc: Jesse Brandeburg
    Link: http://lkml.kernel.org/r/20200706112900.7097-1-geert@linux-m68k.org
    Signed-off-by: Linus Torvalds

    Geert Uytterhoeven
     

11 Jun, 2020

1 commit

  • 6af132f3a   lib: test get_count_order/long in test_bitops.c ... Browse Code »

    Add some tests for get_count_order/long in test_bitops.c.

    [akpm@linux-foundation.org: define local `i']
    [akpm@linux-foundation.org: enhancement, warning fix, cleanup per Geert]
    [akpm@linux-foundation.org: fix loop bound, per Wei Yang]

    Signed-off-by: Wei Yang
    Signed-off-by: Andrew Morton
    Reviewed-by: Andy Shevchenko
    Cc: Christian Brauner
    Cc: Geert Uytterhoeven
    Link: http://lkml.kernel.org/r/20200602223728.32722-1-richard.weiyang@gmail.com
    Signed-off-by: Linus Torvalds

    Wei Yang
     

05 Jun, 2020

1 commit

  • c348c1630   lib: make a test module with set/clear bit ... Browse Code »

    Test some bit clears/sets to make sure assembly doesn't change, and that
    the set_bit and clear_bit functions work and don't cause sparse warnings.

    Instruct Kbuild to build this file with extra warning level -Wextra, to
    catch new issues, and also doesn't hurt to build with C=1.

    This was used to test changes to arch/x86/include/asm/bitops.h.

    In particular, sparse (C=1) was very concerned when the last bit before a
    natural boundary, like 7, or 31, was being tested, as this causes sign
    extension (0xffffff7f) for instance when clearing bit 7.

    Recommended usage:

    make defconfig
    scripts/config -m CONFIG_TEST_BITOPS
    make modules_prepare
    make C=1 W=1 lib/test_bitops.ko
    objdump -S -d lib/test_bitops.ko
    insmod lib/test_bitops.ko
    rmmod lib/test_bitops.ko

    , there should be no compiler/sparse warnings and no
    error messages in log.

    Link: http://lkml.kernel.org/r/20200310221747.2848474-2-jesse.brandeburg@intel.com
    Signed-off-by: Jesse Brandeburg
    Reviewed-by: Andy Shevchenko
    Cc: Thomas Gleixner
    CcL Ingo Molnar
    Signed-off-by: Andrew Morton
    Cc: Borislav Petkov
    Cc: Rasmus Villemoes
    Cc: Dan Williams
    Cc: Peter Zijlstra
    Cc: Wei Yang
    Cc: Christian Brauner
    Signed-off-by: Linus Torvalds

    Jesse Brandeburg