From mboxrd@z Thu Jan 1 00:00:00 1970 From: Srinivas Pandruvada Subject: [PATCH v2 1/2] PM / sleep: Export the setting of pm_debug_messages_on Date: Tue, 8 Aug 2017 15:41:14 -0700 Message-ID: <1502232075-23832-2-git-send-email-srinivas.pandruvada@linux.intel.com> References: <1502232075-23832-1-git-send-email-srinivas.pandruvada@linux.intel.com> Return-path: In-Reply-To: <1502232075-23832-1-git-send-email-srinivas.pandruvada@linux.intel.com> Sender: linux-acpi-owner@vger.kernel.org To: rjw@rjwysocki.net, lenb@kernel.org Cc: linux-pm@vger.kernel.org, mario.limonciello@dell.com, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, lukas@wunner.de, Srinivas Pandruvada List-Id: linux-pm@vger.kernel.org Added a function to export the value of pm_debug_messages_on, so that other parts of the system can use this flag to enable/disable executing PM debug code. Signed-off-by: Srinivas Pandruvada --- include/linux/suspend.h | 6 ++++++ kernel/power/main.c | 5 +++++ 2 files changed, 11 insertions(+) diff --git a/include/linux/suspend.h b/include/linux/suspend.h index 8c3b0b1..5d4b3a3 100644 --- a/include/linux/suspend.h +++ b/include/linux/suspend.h @@ -496,6 +496,10 @@ static inline void unlock_system_sleep(void) {} #ifdef CONFIG_PM_SLEEP_DEBUG extern bool pm_print_times_enabled; extern __printf(2, 3) void __pm_pr_dbg(bool defer, const char *fmt, ...); + +/* Return the value of pm_debug_messages_on */ +bool pm_debug_messages_enabled(void); + #else #define pm_print_times_enabled (false) @@ -503,6 +507,8 @@ extern __printf(2, 3) void __pm_pr_dbg(bool defer, const char *fmt, ...); #define __pm_pr_dbg(defer, fmt, ...) \ no_printk(KERN_DEBUG fmt, ##__VA_ARGS__) + +static inline bool pm_debug_messages_enabled(void) { return false; } #endif #define pm_pr_dbg(fmt, ...) \ diff --git a/kernel/power/main.c b/kernel/power/main.c index 3074ea4..afb7f00 100644 --- a/kernel/power/main.c +++ b/kernel/power/main.c @@ -363,6 +363,11 @@ power_attr_ro(pm_wakeup_irq); static bool pm_debug_messages_on __read_mostly; +bool pm_debug_messages_enabled(void) +{ + return pm_debug_messages_on; +} + static ssize_t pm_debug_messages_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { -- 2.7.5