From: Ralf Baechle <ralf@linux-mips.org>
Date: Wed, 17 Aug 2005 10:11:10 +0000 (+0000)
Subject: On CONFIG_64BIT_PHYS_ADDR, pfn always fits in 'unsigned long', but
X-Git-Tag: v2.6.15-rc1~731^2~1^2~102
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=533330bf7fa19854f3b4accd2b84ff58e3ee160f;p=pandora-kernel.git

On CONFIG_64BIT_PHYS_ADDR, pfn always fits in 'unsigned long', but
pfn<<PAGE_SHIFT sometimes extends beyond.  The pte is big enough to hold
'long long', but the shift in pfn_pte() needs to do its calculation with
enough bits to hold the result.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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