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.
---
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index 52c9ebf..c374a96 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -855,7 +855,6 @@ static int __init i8042_check_aux(void)
 static int i8042_controller_check(void)
 {
 	if (i8042_flush()) {
-		pr_err("No controller found\n");
 		return -ENODEV;
 	}

--
 
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>

--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -157,13 +157,9 @@ static int can_create(struct net *net, struct socket *sock, int protocol,
 		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 but don't return the error code immediately.
+		 * Below we will return -EPROTONOSUPPORT
 		 */
-		if (err)
-			printk_ratelimited(KERN_ERR "can: request_module "
-			       "(can-proto-%d) failed.\n", protocol);
 
 		cp = can_get_proto(protocol);
 	}
 
This was removed in revision 1.6 of linux-2.6-silence-noise.patch
in ye olde CVS tree. I have no idea why. Originally the pr_debug in
device_pm_remove was nuked as well, but that seems to have gotten lost in
the r1.634 of kernel.spec (2.6.26-rc2-git5.)

diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 2a52270..bacbdd2 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -87,8 +87,6 @@ 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", dev_name(dev));
 	mutex_lock(&dpm_list_mtx);
 	if (dev->parent && dev->parent->power.is_prepared)
 		dev_warn(dev, "parent %s should not be sleeping\n",