[PATCH 2/7] ACPI: Limit the number of per cpu ACPI bootup messages

[Mike Travis]

Limit the number of per cpu ACPI messages when system is booting to
prevent clogging up the console output with repetitious messages.

Signed-off-by: Mike Travis <travis@xxxxxxx>
---
 drivers/acpi/fan.c            |    2 +-
 drivers/acpi/processor_core.c |    2 +-
 drivers/acpi/tables.c         |   28 +++++++++++++++++++---------
 3 files changed, 21 insertions(+), 11 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
@@ -845,7 +845,7 @@
 		goto err_power_exit;
 	}
 
-	dev_info(&device->dev, "registered as cooling_device%d\n",
+	dev_dbg(&device->dev, "registered as cooling_device%d\n",
 		 pr->cdev->id);
 
 	result = sysfs_create_link(&device->dev.kobj,
--- linux.orig/drivers/acpi/tables.c
+++ linux/drivers/acpi/tables.c
@@ -66,11 +66,15 @@
 		{
 			struct acpi_madt_local_x2apic *p =
 			    (struct acpi_madt_local_x2apic *)header;
-			printk(KERN_INFO PREFIX
-			       "X2APIC (apic_id[0x%02x] uid[0x%02x] %s)\n",
-			       p->local_apic_id, p->uid,
-			       (p->lapic_flags & ACPI_MADT_ENABLED) ?
-			       "enabled" : "disabled");
+			/*
+			 * Per cpu tracing clogs console output when NR_CPUS
+			 * is large.  Send only to kernel log buffer.
+			 */
+			printk(KERN_DEBUG PREFIX
+				"X2APIC (apic_id[0x%02x] uid[0x%02x] %s)\n",
+				p->local_apic_id, p->uid,
+				(p->lapic_flags & ACPI_MADT_ENABLED) ?
+					"enabled" : "disabled");
 		}
 		break;
 
@@ -171,10 +175,16 @@
 		{
 			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");
+			/*
+			 * Per cpu tracing clogs console output when NR_CPUS
+			 * is large.  Send only to kernel log buffer.
+			 */
+			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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