From: Ben Collins In order to enable things like PM_TRACE, you're required to enable PM_DEBUG, which sends a large spew of messages on boot, and often times can overflow dmesg buffer. Create new PM_VERBOSE and shift that to be the option that enables drivers/base/power's messages. Signed-off-by: Ben Collins Cc: "Rafael J. Wysocki" Cc: Pavel Machek Cc: Greg KH Cc: Linus Torvalds Signed-off-by: Andrew Morton --- drivers/base/power/Makefile | 2 +- kernel/power/Kconfig | 17 ++++++++++++----- 2 files changed, 13 insertions(+), 6 deletions(-) diff -puN drivers/base/power/Makefile~pm-do-not-require-dev-spew-to-get-pm_debug drivers/base/power/Makefile --- a/drivers/base/power/Makefile~pm-do-not-require-dev-spew-to-get-pm_debug +++ a/drivers/base/power/Makefile @@ -5,6 +5,6 @@ obj-$(CONFIG_PM_TRACE) += trace.o ifeq ($(CONFIG_DEBUG_DRIVER),y) EXTRA_CFLAGS += -DDEBUG endif -ifeq ($(CONFIG_PM_DEBUG),y) +ifeq ($(CONFIG_PM_VERBOSE),y) EXTRA_CFLAGS += -DDEBUG endif diff -puN kernel/power/Kconfig~pm-do-not-require-dev-spew-to-get-pm_debug kernel/power/Kconfig --- a/kernel/power/Kconfig~pm-do-not-require-dev-spew-to-get-pm_debug +++ a/kernel/power/Kconfig @@ -33,13 +33,20 @@ config PM_DEBUG bool "Power Management Debug Support" depends on PM ---help--- - This option enables verbose debugging support in the Power Management - code. This is helpful when debugging and reporting various PM bugs, - like suspend support. + This option enables various debugging support in the Power Management + code. This is helpful when debugging and reporting PM bugs, like + suspend support. + +config PM_VERBOSE + bool "Verbose Power Management debugging" + depends on PM_DEBUG + default n + ---help--- + This option enables verbose messages from the Power Management code. config DISABLE_CONSOLE_SUSPEND bool "Keep console(s) enabled during suspend/resume (DANGEROUS)" - depends on PM && PM_DEBUG + depends on PM_DEBUG default n ---help--- This option turns off the console suspend mechanism that prevents @@ -50,7 +57,7 @@ config DISABLE_CONSOLE_SUSPEND config PM_TRACE bool "Suspend/resume event tracing" - depends on PM && PM_DEBUG && X86 && EXPERIMENTAL + depends on PM_DEBUG && X86 && EXPERIMENTAL default n ---help--- This enables some cheesy code to save the last PM event point in the _