From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752536AbdHHWlu (ORCPT ); Tue, 8 Aug 2017 18:41:50 -0400 Received: from mga04.intel.com ([192.55.52.120]:7150 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752442AbdHHWlT (ORCPT ); Tue, 8 Aug 2017 18:41:19 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.41,345,1498546800"; d="scan'208";a="137931417" From: Srinivas Pandruvada 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 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> X-Mailer: git-send-email 2.7.5 In-Reply-To: <1502232075-23832-1-git-send-email-srinivas.pandruvada@linux.intel.com> References: <1502232075-23832-1-git-send-email-srinivas.pandruvada@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@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