linux-kernel - Re: 2.6.26-rc5: CFI: Found no ck804xrom @ffc00000 device at location zero

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Message-ID: <20080612222523.7ae0e8eb@hyperion.delvare>
Date:	Thu, 12 Jun 2008 22:25:23 +0200
From:	Jean Delvare <khali@...ux-fr.org>
To:	"John Stoffel" <john@...ffel.org>
Cc:	linux-kernel@...r.kernel.org,
	David Woodhouse <dwmw2@...radead.org>,
	linux-mtd@...ts.infradead.org
Subject: Re: 2.6.26-rc5: CFI: Found no ck804xrom @ffc00000 device at 
 location zero

Hi John,

On Thu, 12 Jun 2008 14:34:36 -0400, John Stoffel wrote:
> I'm running a AMD X2 box with 4gb of RAM, Ubuntu 8.04 x86_64.  I just
> rebooted the system and I notice the following repeated messages
> (errors? warnings?) in my dmesg output.  I think this is from my
> nForce ethernet chips, but I'm not sure.
> 
> [   13.268005] ck804xrom ck804xrom_init_one(): Unable to register resource 0x00000000ff000000-0x00000000ffffffff - kernel bug?
> [   13.336752] i2c-adapter i2c-0: nForce2 SMBus adapter at 0x1c00
> [   13.336786] i2c-adapter i2c-1: nForce2 SMBus adapter at 0x1c40
> [   13.376771] CFI: Found no ck804xrom @ffc00000 device at location zero
> [   13.398810] JEDEC: Found no ck804xrom @ffc00000 device at location zero
> (...)

Definitely not related to i2c.

Apparently the messages are coming from drivers/mtd/chips/gen_probe.c.
So I doubt it is related to networking either...

They are debugging messages, but printk(KERN_DEBUG ...) is used where
pr_debug(...) should be. The following (untested) patch should fix it:

Subject: [MTD] No debug message when debugging is disabled

Use pr_debug(...) instead of printk(KERN_DEBUG ...) so that the message
is only printed when debugging is enabled.

Signed-off-by: Jean Delvare <khali@...ux-fr.org>
---
 drivers/mtd/chips/gen_probe.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- linux-2.6.26-rc5.orig/drivers/mtd/chips/gen_probe.c	2008-04-17 04:49:44.000000000 +0200
+++ linux-2.6.26-rc5/drivers/mtd/chips/gen_probe.c	2008-06-12 22:20:12.000000000 +0200
@@ -71,8 +71,8 @@ static struct cfi_private *genprobe_iden
 	   interleave and device type, etc. */
 	if (!genprobe_new_chip(map, cp, &cfi)) {
 		/* The probe didn't like it */
-		printk(KERN_DEBUG "%s: Found no %s device at location zero\n",
-		       cp->name, map->name);
+		pr_debug("%s: Found no %s device at location zero\n",
+			 cp->name, map->name);
 		return NULL;
 	}
 


-- 
Jean Delvare
--
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