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authorHeiko Carstens <hca@linux.ibm.com>2023-02-28 13:57:49 +0100
committerVasily Gorbik <gor@linux.ibm.com>2023-03-13 09:16:42 +0100
commit9b63fd2fc8526e51444de35598927e406b1bb26f (patch)
tree9baf9f573a7580f29ab22ed639c171bdef9f85d7
parentf33f2d4c7c80c641f6ca3dfe5e7dfe1f91543780 (diff)
s390/bp: remove s390_isolate_bp_guest()
s390_isolate_bp_guest() is unused. Remove it. Reviewed-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>
-rw-r--r--arch/s390/include/asm/processor.h2
-rw-r--r--arch/s390/kernel/processor.c9
2 files changed, 0 insertions, 11 deletions
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index ddf3adde161c..dd95fddd5dda 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -329,8 +329,6 @@ static __always_inline void __noreturn disabled_wait(void)
#define ARCH_LOW_ADDRESS_LIMIT 0x7fffffffUL
-extern int s390_isolate_bp_guest(void);
-
static __always_inline bool regs_irqs_disabled(struct pt_regs *regs)
{
return arch_irqs_disabled_flags(regs->psw.mask);
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c
index 7e2878c9a036..0a999c8226d7 100644
--- a/arch/s390/kernel/processor.c
+++ b/arch/s390/kernel/processor.c
@@ -364,12 +364,3 @@ const struct seq_operations cpuinfo_op = {
.stop = c_stop,
.show = show_cpuinfo,
};
-
-int s390_isolate_bp_guest(void)
-{
- if (!test_facility(82))
- return -EOPNOTSUPP;
- set_thread_flag(TIF_ISOLATE_BP_GUEST);
- return 0;
-}
-EXPORT_SYMBOL(s390_isolate_bp_guest);