Eric Lee / smarc-fsl-linux-kernel

03 Nov, 2020

1 commit

  • aa4e460f0   lib/crc32test: remove extra local_irq_disable/enable ... Browse Code »

    Commit 4d004099a668 ("lockdep: Fix lockdep recursion") uncovered the
    following issue in lib/crc32test reported on s390:

    BUG: using __this_cpu_read() in preemptible [00000000] code: swapper/0/1
    caller is lockdep_hardirqs_on_prepare+0x48/0x270
    CPU: 6 PID: 1 Comm: swapper/0 Not tainted 5.9.0-next-20201015-15164-g03d992bd2de6 #19
    Hardware name: IBM 3906 M04 704 (LPAR)
    Call Trace:
    lockdep_hardirqs_on_prepare+0x48/0x270
    trace_hardirqs_on+0x9c/0x1b8
    crc32_test.isra.0+0x170/0x1c0
    crc32test_init+0x1c/0x40
    do_one_initcall+0x40/0x130
    do_initcalls+0x126/0x150
    kernel_init_freeable+0x1f6/0x230
    kernel_init+0x22/0x150
    ret_from_fork+0x24/0x2c
    no locks held by swapper/0/1.

    Remove extra local_irq_disable/local_irq_enable helpers calls.

    Fixes: 5fb7f87408f1 ("lib: add module support to crc32 tests")
    Signed-off-by: Vasily Gorbik
    Signed-off-by: Andrew Morton
    Cc: Peter Zijlstra
    Cc: Ingo Molnar
    Cc: Greg Kroah-Hartman
    Link: https://lkml.kernel.org/r/patch.git-4369da00c06e.your-ad-here.call-01602859837-ext-1679@work.hours
    Signed-off-by: Linus Torvalds

    Vasily Gorbik
     

25 Feb, 2017

1 commit

  • 5fb7f8740   lib: add module support to crc32 tests ... Browse Code »

    Extract the crc32 test code into its own source file, to allow to
    compile it either to a loadable module, or builtin into the kernel.

    Link: http://lkml.kernel.org/r/1483470276-10517-1-git-send-email-geert@linux-m68k.org
    Signed-off-by: Geert Uytterhoeven
    Reviewed-by: Andy Shevchenko
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Geert Uytterhoeven