From eecbad7d0306b9ee4f621517052913d1adaea753 Mon Sep 17 00:00:00 2001
From: Andreea-Cristina Bernat <bernat.ada@gmail.com>
Date: Mon, 18 Aug 2014 15:20:56 +0300
Subject: [PATCH] iommu: Replace rcu_assign_pointer() with RCU_INIT_POINTER()

The use of "rcu_assign_pointer()" is NULLing out the pointer.
According to RCU_INIT_POINTER()'s block comment:
"1.   This use of RCU_INIT_POINTER() is NULLing out the pointer"
it is better to use it instead of rcu_assign_pointer() because it has a
smaller overhead.

The following Coccinelle semantic patch was used:
@@
@@

- rcu_assign_pointer
+ RCU_INIT_POINTER
  (..., NULL)

Signed-off-by: Andreea-Cristina Bernat <bernat.ada@gmail.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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