[PATCH v3 RESEND 06/17] ARM: LPAE: use signed arithmetic for mask definitions
From: catalin.marinas@arm.com (Catalin Marinas)
Date: 2012-09-24 13:09:51
On Fri, Sep 21, 2012 at 04:56:04PM +0100, Cyril Chemparathy wrote:
This patch applies to PAGE_MASK, PMD_MASK, and PGDIR_MASK, where forcing unsigned long math truncates the mask at the 32-bits. This clearly does bad things on PAE systems. This patch fixes this problem by defining these masks as signed quantities. We then rely on sign extension to do the right thing. Signed-off-by: Cyril Chemparathy <redacted> Signed-off-by: Vitaly Andrianov <redacted> Reviewed-by: Nicolas Pitre <redacted>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>