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authorBjorn Helgaas <bjorn.helgaas@hp.com>2008-11-07 18:58:00 -0500
committerLen Brown <len.brown@intel.com>2008-11-07 21:45:16 -0500
commit87b586088ef953c602680e5aff8ab83a2e299498 (patch)
tree1c6294ea2768254dab8cbb1bf7581ac00bad7fc6 /drivers/acpi/bus.c
parentbdd7279919f682da8752fb47784a1ee302f8b7ea (diff)
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.c8
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)
688 if (acpi_disabled) 688 if (acpi_disabled)
689 return; 689 return;
690 690
691 /*
692 * ACPI CA initializes acpi_dbg_level to non-zero, which means
693 * we get debug output merely by turning on CONFIG_ACPI_DEBUG.
694 * Turn it off so we don't get output unless the user specifies
695 * acpi.debug_level.
696 */
697 acpi_dbg_level = 0;
698
691 printk(KERN_INFO PREFIX "Core revision %08x\n", ACPI_CA_VERSION); 699 printk(KERN_INFO PREFIX "Core revision %08x\n", ACPI_CA_VERSION);
692 700
693 /* enable workarounds, unless strict ACPI spec. compliance */ 701 /* enable workarounds, unless strict ACPI spec. compliance */