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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2011-03-27 15:04:46 +0200 |
|---|---|---|
| committer | Dave Jones <davej@redhat.com> | 2011-05-04 11:50:57 -0400 |
| commit | 2d06d8c49afdcc9bb35a85039fa50f0fe35bd40e (patch) | |
| tree | d933a68fc71f6e2c3b95b744a87fa1d817bea3d6 /arch/blackfin | |
| parent | 27ecddc2a9f99ce4ac9a59a0acd77f7100b6d034 (diff) | |
| download | lwn-2d06d8c49afdcc9bb35a85039fa50f0fe35bd40e.tar.gz lwn-2d06d8c49afdcc9bb35a85039fa50f0fe35bd40e.zip | |
[CPUFREQ] use dynamic debug instead of custom infrastructure
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
CONFIG_DYNAMIC_DEBUG enabled.
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
Documentation/dynamic-debug-howto.txt
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'arch/blackfin')
| -rw-r--r-- | arch/blackfin/mach-common/dpmc.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/blackfin/mach-common/dpmc.c b/arch/blackfin/mach-common/dpmc.c index 382099fd5561..5e4112e518a9 100644 --- a/arch/blackfin/mach-common/dpmc.c +++ b/arch/blackfin/mach-common/dpmc.c @@ -19,9 +19,6 @@ #define DRIVER_NAME "bfin dpmc" -#define dprintk(msg...) \ - cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, DRIVER_NAME, msg) - struct bfin_dpmc_platform_data *pdata; /** |