From f33f2d4c7c80c641f6ca3dfe5e7dfe1f91543780 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <hca@linux.ibm.com>
Date: Tue, 28 Feb 2023 13:57:48 +0100
Subject: s390/bp: remove TIF_ISOLATE_BP

TIF_ISOLATE_BP is unused since it was introduced with commit 6b73044b2b00
("s390: run user space and KVM guests with modified branch prediction").
Given that there is no use case remove it again.

Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
---
 arch/s390/kernel/processor.c | 9 ---------
 1 file changed, 9 deletions(-)

(limited to 'arch/s390/kernel/processor.c')

diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c
index a194611ba88c..7e2878c9a036 100644
--- a/arch/s390/kernel/processor.c
+++ b/arch/s390/kernel/processor.c
@@ -365,15 +365,6 @@ const struct seq_operations cpuinfo_op = {
 	.show	= show_cpuinfo,
 };
 
-int s390_isolate_bp(void)
-{
-	if (!test_facility(82))
-		return -EOPNOTSUPP;
-	set_thread_flag(TIF_ISOLATE_BP);
-	return 0;
-}
-EXPORT_SYMBOL(s390_isolate_bp);
-
 int s390_isolate_bp_guest(void)
 {
 	if (!test_facility(82))
-- 
cgit