linux-kernel - [PATCH] ACPI: Get rid of "registered as cooling

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>] [day] [month] [year] [list]

Date:	Mon, 28 Sep 2009 15:43:39 -0700
From:	Roland Dreier <rdreier@...co.com>
To:	Len Brown <lenb@...nel.org>
Cc:	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ACPI: Get rid of "registered as cooling_deviceX" messages

The messages "<xyz> registered as cooling_deviceX" printed by various
ACPI drivers give the same information as just looking at the symlinks
/sys/class/thermal/cooling_deviceX/device.  On a big system, they
clutter up the syslog and take a long time to print on a serial console.

On a 64-thread system I've been lucky enough to play with:

    $ dmesg | grep 'registered as cooling_device' | wc
         64     448    4278

which is getting past tragedy and into the realm of comedy.  We may as
well not print these messages.

Signed-off-by: Roland Dreier <rolandd@...co.com>
---
Len, still more in my trimming of the boot log on my big box.  If this
makes sense to you, please apply.

Also I think <http://patchwork.kernel.org/patch/50048/> might have
gotten lost somewhere -- you applied the C-state version but not the
equivalent T-state patch.

 drivers/acpi/fan.c            |    2 --
 drivers/acpi/processor_core.c |    3 ---
 drivers/acpi/video.c          |    2 --
 3 files changed, 0 insertions(+), 7 deletions(-)

diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index f419849..6bbc61d 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -267,8 +267,6 @@ static int acpi_fan_add(struct acpi_device *device)
 		goto end;
 	}
 
-	dev_info(&device->dev, "registered as cooling_device%d\n", cdev->id);
-
 	device->driver_data = cdev;
 	result = sysfs_create_link(&device->dev.kobj,
 				   &cdev->device.kobj,
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index c2d4d6e..3d6e95e 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -845,9 +845,6 @@ static int acpi_processor_add(struct acpi_device *device)
 		goto err_power_exit;
 	}
 
-	dev_info(&device->dev, "registered as cooling_device%d\n",
-		 pr->cdev->id);
-
 	result = sysfs_create_link(&device->dev.kobj,
 				   &pr->cdev->device.kobj,
 				   "thermal_cooling");
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index a4fddb2..3f67f4d 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -1022,8 +1022,6 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
 			return;
 		}
 
-		dev_info(&device->dev->dev, "registered as cooling_device%d\n",
-			 device->cooling_dev->id);
 		result = sysfs_create_link(&device->dev->dev.kobj,
 				&device->cooling_dev->device.kobj,
 				"thermal_cooling");
--
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/