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| author |   Bjorn Helgaas <bjorn.helgaas@hp.com> | 2008-11-07 16:58:00 -0700 |
|---|---|---|
| committer |   Len Brown <len.brown@intel.com> | 2008-11-07 21:45:16 -0500 |
| commit | 87b586088ef953c602680e5aff8ab83a2e299498 (patch) | |
| tree | 1c6294ea2768254dab8cbb1bf7581ac00bad7fc6 /drivers/acpi/bus.c | |
| parent | ACPI: add driver component definitions to sysfs debug_layers (diff) | |
| download | linux-dev-87b586088ef953c602680e5aff8ab83a2e299498.tar.xz linux-dev-87b586088ef953c602680e5aff8ab83a2e299498.zip | |
ACPI: turn off all debug output by default
When CONFIG_ACPI_DEBUG=y, the default acpi_dbg_layer and acpi_dbg_level
values built into the ACPI CA have some debug output enabled. We'd
rather be quiet unless the user actually specified the acpi.debug_level
argument.
This enables distros to ship with CONFIG_ACPI_DEBUG=y without
inundating users with debug output.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/bus.c')
| -rw-r--r-- | drivers/acpi/bus.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 765fd1c56cd6..7edf6d913c13 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -688,6 +688,14 @@ void __init acpi_early_init(void) if (acpi_disabled) return; + /* + * ACPI CA initializes acpi_dbg_level to non-zero, which means + * we get debug output merely by turning on CONFIG_ACPI_DEBUG. + * Turn it off so we don't get output unless the user specifies + * acpi.debug_level. + */ + acpi_dbg_level = 0; + printk(KERN_INFO PREFIX "Core revision %08x\n", ACPI_CA_VERSION); /* enable workarounds, unless strict ACPI spec. compliance */ |