linux-kernel - [PATCH 3/4] x86: ioremap: remove physical address warning message

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Message-ID: <4C11FFF6.8040406@jp.fujitsu.com>
Date:	Fri, 11 Jun 2010 18:20:54 +0900
From:	Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>
To:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org
CC:	linux-pci@...r.kernel.org, jbarnes@...tuousgeek.org
Subject: [PATCH 3/4] x86: ioremap: remove physical address warning message

Current ioremap() code for x86 displays warning message if too high
address to handle is passed. But this can happen as usual cases. For
example, if 64-bit BAR is assigned to a PCI device and its device
driver calls pci_iomap(). So this patch changes the warning messages
as follows.

- Change printk message from KERN_WARNING to KERN_DEBUG
- Remove WARN_ON_ONCE()

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>

---
 arch/x86/mm/ioremap.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Index: linux-2.6.34/arch/x86/mm/ioremap.c
===================================================================
--- linux-2.6.34.orig/arch/x86/mm/ioremap.c	2010-06-10 07:28:31.966187993 +0900
+++ linux-2.6.34/arch/x86/mm/ioremap.c	2010-06-10 07:28:33.146375380 +0900
@@ -78,9 +78,8 @@
 		return NULL;
 
 	if (!phys_addr_valid(phys_addr)) {
-		printk(KERN_WARNING "ioremap: invalid physical address %llx\n",
+		printk(KERN_DEBUG "ioremap: can't map physical address %llx\n",
 		       (unsigned long long)phys_addr);
-		WARN_ON_ONCE(1);
 		return NULL;
 	}
 


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