--- linux-2.6.26.noarch/drivers/base/power/main.c~	2008-08-22 20:57:57.000000000 -0400
+++ linux-2.6.26.noarch/drivers/base/power/main.c	2008-08-22 20:58:05.000000000 -0400
@@ -69,9 +69,6 @@ void device_pm_unlock(void)
  */
 void device_pm_add(struct device *dev)
 {
-	pr_debug("PM: Adding info for %s:%s\n",
-		 dev->bus ? dev->bus->name : "No Bus",
-		 kobject_name(&dev->kobj));
 	mutex_lock(&dpm_list_mtx);
 	if (dev->parent) {
 		if (dev->parent->power.status >= DPM_SUSPENDING)
From b4e96f34c17e5a79cd28774cc722bb33e7e02c6e Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Thu, 25 Sep 2008 16:23:33 -0400
Subject: [PATCH] Don't print an error message just because there's no i8042 chip.
 
Some systems, such as EFI-based Apple systems, won't necessarily have an
i8042 to initialize.  We shouldn't be printing an error message in this
case, since not detecting the chip is the correct behavior.
---
 drivers/input/serio/i8042.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)
 
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index 170f71e..4f3e632 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -701,10 +701,8 @@ static int __devinit i8042_check_aux(void)
 
 static int i8042_controller_check(void)
 {
-	if (i8042_flush() == I8042_BUFFER_SIZE) {
-		printk(KERN_ERR "i8042.c: No controller found.\n");
+	if (i8042_flush() == I8042_BUFFER_SIZE)
 		return -ENODEV;
-	}
 
 	return 0;
 }
-- 
1.6.0.1
 
Socket fuzzers like sfuzz will trigger this printk a lot, even though it's
ratelimited. It isn't particularly useful, so just remove it.
 
Signed-off-by: Dave Jones <davej@redhat.com>
 
--- linux-2.6.27.noarch/net/can/af_can.c~	2008-12-11 16:53:48.000000000 -0500
+++ linux-2.6.27.noarch/net/can/af_can.c	2008-12-11 16:54:42.000000000 -0500
@@ -134,13 +134,9 @@ static int can_create(struct net *net, s
 		err = request_module("can-proto-%d", protocol);
 
 		/*
-		 * In case of error we only print a message but don't
-		 * return the error code immediately.  Below we will
-		 * return -EPROTONOSUPPORT
+		 * In case of error we don't return the error code immediately.
+		 * Below we will return -EPROTONOSUPPORT
 		 */
-		if (err && printk_ratelimit())
-			printk(KERN_ERR "can: request_module "
-			       "(can-proto-%d) failed.\n", protocol);
 	}
 #endif
 
Some devices (like the nuforce udac) spew this quite a lot.
This patch kinda sucks, but it'll shut things up for now.
 
Probably not an upstream candidate. I suspect the answer would be 
"don't turn SND_DEBUG then"
 
--- linux-2.6.34.noarch/sound/usb/clock.c~	2010-07-16 22:11:41.000000000 -0400
+++ linux-2.6.34.noarch/sound/usb/clock.c	2010-07-16 22:15:21.000000000 -0400
@@ -212,8 +212,13 @@ static int set_sample_rate_v1(struct snd
 
 	/* if endpoint doesn't have sampling rate control, bail out */
 	if (!(fmt->attributes & UAC_EP_CS_ATTR_SAMPLE_RATE)) {
-		snd_printk(KERN_WARNING "%d:%d:%d: endpoint lacks sample rate attribute bit, cannot set.\n",
+		static int once;
+
+		if (!once) {
+			snd_printk(KERN_WARNING "%d:%d:%d: endpoint lacks sample rate attribute bit, cannot set.\n",
 				   dev->devnum, iface, fmt->altsetting);
+			once = 1;
+		}
 		return 0;
 	}