From 1b76d38332271d5a0468ae5e465c5ea534c473c6 Mon Sep 17 00:00:00 2001
From: Devesh Sharma <devesh.sharma@emulex.com>
Date: Fri, 5 Sep 2014 19:35:40 +0530
Subject: [PATCH] RDMA/ocrdma: Convert kernel VA to PA for mmap in user

In some platforms, when iommu is enabled, the bus address returned by
dma_alloc_coherent is different than the physical address.  ocrdma
should use physical address for mmap-ing the queue memory for the
applications.

This patch adds the use of virt_to_phys() at all such places where
kernel buffer is mapped to user process context.

Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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