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authorDominik Brodowski <linux@dominikbrodowski.net>2011-03-27 15:04:46 +0200
committerDave Jones <davej@redhat.com>2011-05-04 11:50:57 -0400
commit2d06d8c49afdcc9bb35a85039fa50f0fe35bd40e (patch)
treed933a68fc71f6e2c3b95b744a87fa1d817bea3d6 /drivers/cpufreq/Kconfig
parent27ecddc2a9f99ce4ac9a59a0acd77f7100b6d034 (diff)
[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 'drivers/cpufreq/Kconfig')
-rw-r--r--drivers/cpufreq/Kconfig13
1 files changed, 0 insertions, 13 deletions
diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index ca8ee8093d6..b78baa547ef 100644
--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -18,19 +18,6 @@ if CPU_FREQ
config CPU_FREQ_TABLE
tristate
-config CPU_FREQ_DEBUG
- bool "Enable CPUfreq debugging"
- help
- Say Y here to enable CPUfreq subsystem (including drivers)
- debugging. You will need to activate it via the kernel
- command line by passing
- cpufreq.debug=<value>
-
- To get <value>, add
- 1 to activate CPUfreq core debugging,
- 2 to activate CPUfreq drivers debugging, and
- 4 to activate CPUfreq governor debugging
-
config CPU_FREQ_STAT
tristate "CPU frequency translation statistics"
select CPU_FREQ_TABLE