• Dominik Brodowski's avatar
    [CPUFREQ] use dynamic debug instead of custom infrastructure · 2d06d8c4
    Dominik Brodowski authored
    With dynamic debug having gained the capability to report debug messages
    also during the boot process, it offers a far superior interface for
    debug messages than the custom cpufreq infrastructure. As a first step,
    remove the old cpufreq_debug_printk() function and replace it with a call
    to the generic pr_debug() function.
    How can dynamic debug be used on cpufreq? You need a kernel which has
    To enabled debugging during runtime, mount debugfs and
    $ echo -n 'module cpufreq +p' > /sys/kernel/debug/dynamic_debug/control
    for debugging the complete "cpufreq" module. To achieve the same goal during
    boot, append
    	ddebug_query="module cpufreq +p"
    as a boot parameter to the kernel of your choice.
    For more detailled instructions, please see
    Signed-off-by: default avatarDominik Brodowski <linux@dominikbrodowski.net>
    Signed-off-by: default avatarDave Jones <davej@redhat.com>
freq_table.c 6.02 KB