From b410aed93288d0bd7650c4d17fd0f306b5082d6f Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Thu, 20 Feb 2014 16:31:06 +0000
Subject: [PATCH] iommu/arm-smmu: clean up use of `flags' in page table
 handling code

Commit 972157cac528 ("arm/smmu: Use irqsafe spinlock for domain lock")
fixed our page table locks to be the irq{save,restore} variants, since
the DMA mapping API can be invoked from interrupt context.

This patch cleans up our use of the flags variable so we can distinguish
between IRQ flags (now `flags') and pte protection bits (now `prot').

Signed-off-by: Will Deacon <will.deacon@arm.com>
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