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| author | Thomas Renninger <trenn@suse.de> | 2007-05-31 17:20:39 +0200 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2007-07-22 02:20:07 -0400 |
| commit | 798d91039849486c7a4f1a458a5680cb55a65408 (patch) | |
| tree | 913aa33232986dc38b73a7f606c73c8281d208f6 /drivers/acpi/Kconfig | |
| parent | 54ca4123363f388ab724fc66da92b87dc05395c3 (diff) | |
| download | lwn-798d91039849486c7a4f1a458a5680cb55a65408.tar.gz lwn-798d91039849486c7a4f1a458a5680cb55a65408.zip | |
ACPI: create CONFIG_ACPI_DEBUG_FUNC_TRACE
Split ACPI_DEBUG into function trace enabled and not enabled.
Function trace is most of the ACPI_DEBUG costs, but is
not much of use for kernel ACPI debugging.
Size of kernel image increased on test compile:
+ 48k (Full ACPI_DEBUG)
+ 35k (ACPI_DEBUG with function trace compiled out)
Performance without function trace is also much better.
Also remove ACPI_LV_DEBUG_OBJECT from default debug level as
a lot vendors let Store (value, debug) in their code and this
might confuse users when it pops up in syslog.
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/Kconfig')
| -rw-r--r-- | drivers/acpi/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 139f41f033d8..1121a1f4b5d7 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -280,6 +280,14 @@ config ACPI_DEBUG of verbosity. Saying Y enables these statements. This will increase your kernel size by around 50K. +config ACPI_DEBUG_FUNC_TRACE + bool "Additionally enable ACPI function tracing" + default n + depends on ACPI_DEBUG + help + ACPI Debug Statements slow down ACPI processing. Function trace + is about half of the penalty and is rarely useful. + config ACPI_EC bool default y |