From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm64: ARCH_PFN_OFFSET should be unsigned long
Date: Tue, 28 Oct 2014 13:51:56 +0100 [thread overview]
Message-ID: <1971110.TLNM8kRvV0@wuerfel> (raw)
In-Reply-To: <20141028123610.GC12136@arm.com>
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
next prev parent reply other threads:[~2014-10-28 12:51 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-28 5:44 [PATCH] arm64: ARCH_PFN_OFFSET should be unsigned long Neil Zhang
2014-10-28 12:36 ` Will Deacon
2014-10-28 12:51 ` Arnd Bergmann [this message]
2014-10-28 13:36 ` Will Deacon
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