linux-kernel - [PATCH 1/2] PM: use dpm_run_callback in device

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1370593232-3602-2-git-send-email-shuox.liu@intel.com>
Date:	Fri,  7 Jun 2013 16:20:31 +0800
From:	shuox.liu@...el.com
To:	linux-kernel@...r.kernel.org
Cc:	linux-pm@...r.kernel.org, pavel@....cz, rjw@...k.pl,
	len.brown@...el.com, gregkh@...uxfoundation.org,
	yanmin_zhang@...ux.intel.com, ShuoX Liu <shuox.liu@...el.com>,
	Zhang Yanmin <yanmin.zhang@...el.com>
Subject: [PATCH 1/2] PM: use dpm_run_callback in device_prepare

From: ShuoX Liu <shuox.liu@...el.com>

dpm_run_callback could show more debug info around prepare stage.

Signed-off-by: Zhang Yanmin <yanmin.zhang@...el.com>
Signed-off-by: Liu ShuoX <shuox.liu@...el.com>
---
 drivers/base/power/main.c |    9 ++++-----
 1 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 5a9b656..cb89323 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -1223,7 +1223,7 @@ int dpm_suspend(pm_message_t state)
  */
 static int device_prepare(struct device *dev, pm_message_t state)
 {
-	int (*callback)(struct device *) = NULL;
+	pm_callback_t callback = NULL;
 	char *info = NULL;
 	int error = 0;
 
@@ -1261,10 +1261,7 @@ static int device_prepare(struct device *dev, pm_message_t state)
 		callback = dev->driver->pm->prepare;
 	}
 
-	if (callback) {
-		error = callback(dev);
-		suspend_report_result(callback, error);
-	}
+	error = dpm_run_callback(callback, dev, state, info);
 
 	device_unlock(dev);
 
@@ -1280,6 +1277,7 @@ static int device_prepare(struct device *dev, pm_message_t state)
 int dpm_prepare(pm_message_t state)
 {
 	int error = 0;
+	ktime_t starttime = ktime_get();
 
 	might_sleep();
 
@@ -1311,6 +1309,7 @@ int dpm_prepare(pm_message_t state)
 		put_device(dev);
 	}
 	mutex_unlock(&dpm_list_mtx);
+	dpm_show_time(starttime, state, "prepare");
 	return error;
 }
 
-- 
1.7.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/