From 4229fb12a03e5da5882b420b0aa4a02e77447b86 Mon Sep 17 00:00:00 2001
From: Max Filippov <jcmvbkbc@gmail.com>
Date: Sat, 4 Jul 2015 15:27:39 +0300
Subject: [PATCH] xtensa: fix threadptr reload on return to userspace

Userspace return code may skip restoring THREADPTR register if there are
no registers that need to be zeroed. This leads to spurious failures in
libc NPTL tests.

Always restore THREADPTR on return to userspace.

Cc: stable@vger.kernel.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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