From 4084eb7767418861a81d9e24d222f2536537f58e Mon Sep 17 00:00:00 2001
From: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Date: Tue, 28 Apr 2015 11:30:40 +0200
Subject: [PATCH] s390/kernel: use test_fp_ctl() to verify the floating-point
 control word

Use the test_fp_ctl() to test the floating-point control word
for validity and use restore_fp_ctl() to set it in load_sigregs.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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