From mboxrd@z Thu Jan  1 00:00:00 1970
From: arnd@arndb.de (Arnd Bergmann)
Date: Tue, 28 Oct 2014 13:51:56 +0100
Subject: [PATCH] arm64: ARCH_PFN_OFFSET should be unsigned long
In-Reply-To: <20141028123610.GC12136@arm.com>
References: <1414475041-31480-1-git-send-email-zhangwm@marvell.com>
 <20141028123610.GC12136@arm.com>
Message-ID: <1971110.TLNM8kRvV0@wuerfel>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Tuesday 28 October 2014 12:36:11 Will Deacon wrote:
> On Tue, Oct 28, 2014 at 05:44:01AM +0000, Neil Zhang wrote:
> > pfns are unsigned long, but PHYS_PFN_OFFSET is phys_addr_t. This leads
> > to page_to_pfn() returning phys_addr_t which cause type mismatches in
> > some print statements.
> 
> Do you have a specific example? Both of those types are 64-bit on arm64.
> 
> 

printf warns about the fact that phys_addr_t is defined as 'u64', which
is 'unsigned long long' rather than 'unsigned long'. It's the same size
but not the same printf format string.

	Arnd