linux-kernel - Re: [PATCH 4/8] SGI x86_64 UV: Limit the number of ACPI messages

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Message-ID: <4AE71167.7060506@sgi.com>
Date:	Tue, 27 Oct 2009 08:27:35 -0700
From:	Mike Travis <travis@....com>
To:	Bjorn Helgaas <bjorn.helgaas@...com>
CC:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jack Steiner <steiner@....com>,
	Zhang Rui <rui.zhang@...el.com>, Len Brown <lenb@...nel.org>,
	Thomas Renninger <trenn@...e.de>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Myron Stowe <myron.stowe@...com>,
	Feng Tang <feng.tang@...el.com>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	Yinghai Lu <yhlu.kernel@...il.com>, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/8] SGI x86_64 UV: Limit the number of ACPI messages

Bjorn Helgaas wrote:
...
> 
> I know we print way too much stuff for every processor, but again, I'd
> rather see all CPUs or none.  I think there's a little more value in
> this one than the cooling device one (probably because I do a lot of
> platform bringup), but it could certainly be made KERN_DEBUG and/or
> combined with another processor discovery line.

Is this more acceptable?

Thanks,
Mike
--- 

SGI x86_64 UV: Limit the number of ACPI messages

Limit number of ACPI messages of the form:

[    0.000000] ACPI: LSAPIC (acpi_id[0x00] lsapic_id[0x00] lsapic_eid[0x00] enabled)

[   99.638655] processor ACPI0007:00: registered as cooling_device0

Cc: Zhang Rui <rui.zhang@...el.com>
Cc: Len Brown <lenb@...nel.org>
Cc: Thomas Renninger <trenn@...e.de>
Cc: Bjorn Helgaas <bjorn.helgaas@...com>
Cc: Alexey Dobriyan <adobriyan@...il.com>
Cc: Myron Stowe <myron.stowe@...com>
Cc: Feng Tang <feng.tang@...el.com>
Cc: Suresh Siddha <suresh.b.siddha@...el.com>
Cc: Yinghai Lu <yhlu.kernel@...il.com>
Cc: linux-acpi@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Mike Travis <travis@....com>
---
 drivers/acpi/fan.c            |    2 +-
 drivers/acpi/processor_core.c |    3 +--
 drivers/acpi/tables.c         |   13 ++++++++-----
 3 files changed, 10 insertions(+), 8 deletions(-)

--- linux.orig/drivers/acpi/fan.c
+++ linux/drivers/acpi/fan.c
@@ -267,7 +267,7 @@
 		goto end;
 	}
 
-	dev_info(&device->dev, "registered as cooling_device%d\n", cdev->id);
+	dev_dbg(&device->dev, "registered as cooling_device%d\n", cdev->id);
 
 	device->driver_data = cdev;
 	result = sysfs_create_link(&device->dev.kobj,
--- linux.orig/drivers/acpi/processor_core.c
+++ linux/drivers/acpi/processor_core.c
@@ -845,8 +845,7 @@
 		goto err_power_exit;
 	}
 
-	dev_info(&device->dev, "registered as cooling_device%d\n",
-		 pr->cdev->id);
+	dev_dbg(&device->dev, "registered as cooling_device%d\n", pr->cdev->id);
 
 	result = sysfs_create_link(&device->dev.kobj,
 				   &pr->cdev->device.kobj,
--- linux.orig/drivers/acpi/tables.c
+++ linux/drivers/acpi/tables.c
@@ -170,11 +170,14 @@
 	case ACPI_MADT_TYPE_LOCAL_SAPIC:
 		{
 			struct acpi_madt_local_sapic *p =
-			    (struct acpi_madt_local_sapic *)header;
-			printk(KERN_INFO PREFIX
-			       "LSAPIC (acpi_id[0x%02x] lsapic_id[0x%02x] lsapic_eid[0x%02x] %s)\n",
-			       p->processor_id, p->id, p->eid,
-			       (p->lapic_flags & ACPI_MADT_ENABLED) ? "enabled" : "disabled");
+				(struct acpi_madt_local_sapic *)header;
+
+			printk(KERN_DEBUG PREFIX
+				"LSAPIC (acpi_id[0x%02x] "
+				"lsapic_id[0x%02x] lsapic_eid[0x%02x] %s)\n",
+				p->processor_id, p->id, p->eid,
+				(p->lapic_flags & ACPI_MADT_ENABLED) ?
+					"enabled" : "disabled");
 		}
 		break;
 
--
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