From 4b7760ba0dd3319f66886ab2335a0fbecdbc808a Mon Sep 17 00:00:00 2001 From: Sameer Nanda Date: Tue, 19 Jun 2012 22:23:33 +0200 Subject: PM / Sleep: add knob for printing device resume times Added a new knob called /sys/power/pm_print_times. Setting it to 1 enables printing of time taken by devices to suspend and resume. Setting it to 0 disables this printing (unless overridden by initcall_debug kernel command line option). Signed-off-by: Sameer Nanda Acked-by: Greg KH Signed-off-by: Rafael J. Wysocki --- drivers/base/power/main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/base/power/main.c') diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index 9cb845e49334..6e4db96958d1 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -166,7 +166,7 @@ static ktime_t initcall_debug_start(struct device *dev) { ktime_t calltime = ktime_set(0, 0); - if (initcall_debug) { + if (pm_print_times) { pr_info("calling %s+ @ %i, parent: %s\n", dev_name(dev), task_pid_nr(current), dev->parent ? dev_name(dev->parent) : "none"); @@ -181,7 +181,7 @@ static void initcall_debug_report(struct device *dev, ktime_t calltime, { ktime_t delta, rettime; - if (initcall_debug) { + if (pm_print_times) { rettime = ktime_get(); delta = ktime_sub(rettime, calltime); pr_info("call %s+ returned %d after %Ld usecs\n", dev_name(dev), -- cgit v1.2.1 From b2df1d4f8b95d9d1e3f064cef02fc5c5116b05cf Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 21 Jun 2012 00:19:33 +0200 Subject: PM / Sleep: Separate printing suspend times from initcall_debug Change the behavior of the newly introduced /sys/power/pm_print_times attribute so that its initial value depends on initcall_debug, but setting it to 0 will cause device suspend/resume times not to be printed, even if initcall_debug has been set. This way, the people who use initcall_debug for reasons other than PM debugging will be able to switch the suspend/resume times printing off, if need be. Signed-off-by: Rafael J. Wysocki Reviewed-by: Srivatsa S. Bhat Acked-by: Greg Kroah-Hartman --- drivers/base/power/main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/base/power/main.c') diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index 6e4db96958d1..df5f41d2ec95 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -166,7 +166,7 @@ static ktime_t initcall_debug_start(struct device *dev) { ktime_t calltime = ktime_set(0, 0); - if (pm_print_times) { + if (pm_print_times_enabled) { pr_info("calling %s+ @ %i, parent: %s\n", dev_name(dev), task_pid_nr(current), dev->parent ? dev_name(dev->parent) : "none"); @@ -181,7 +181,7 @@ static void initcall_debug_report(struct device *dev, ktime_t calltime, { ktime_t delta, rettime; - if (pm_print_times) { + if (pm_print_times_enabled) { rettime = ktime_get(); delta = ktime_sub(rettime, calltime); pr_info("call %s+ returned %d after %Ld usecs\n", dev_name(dev), -- cgit v1.2.1 From 7664e969359917ba3212c5d6efdec494eaf8586e Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Tue, 17 Jul 2012 22:38:08 +0200 Subject: PM / Sleep: Add missing static storage class specifiers in main.c Fix the following sparse warnings: drivers/base/power/main.c:48:1: warning: symbol 'dpm_prepared_list' was not declared. Should it be static? drivers/base/power/main.c:49:1: warning: symbol 'dpm_suspended_list' was not declared. Should it be static? drivers/base/power/main.c:50:1: warning: symbol 'dpm_late_early_list' was not declared. Should it be static? drivers/base/power/main.c:51:1: warning: symbol 'dpm_noirq_list' was not declared. Should it be static? Signed-off-by: Sachin Kamat Signed-off-by: Rafael J. Wysocki --- drivers/base/power/main.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/base/power/main.c') diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index df5f41d2ec95..dbc3dbea5b25 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -45,10 +45,10 @@ typedef int (*pm_callback_t)(struct device *); */ LIST_HEAD(dpm_list); -LIST_HEAD(dpm_prepared_list); -LIST_HEAD(dpm_suspended_list); -LIST_HEAD(dpm_late_early_list); -LIST_HEAD(dpm_noirq_list); +static LIST_HEAD(dpm_prepared_list); +static LIST_HEAD(dpm_suspended_list); +static LIST_HEAD(dpm_late_early_list); +static LIST_HEAD(dpm_noirq_list); struct suspend_stats suspend_stats; static DEFINE_MUTEX(dpm_list_mtx); -- cgit v1.2.1