From 3fba7e23f754a9a6e639b640fa2a393712ffe1b8 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Wed, 19 Aug 2015 11:02:28 +0100
Subject: [PATCH] ARM: uaccess: provide uaccess_save_and_enable() and
 uaccess_restore()

Provide uaccess_save_and_enable() and uaccess_restore() to permit
control of userspace visibility to the kernel, and hook these into
the appropriate places in the kernel where we need to access
userspace.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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