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s390/bp: remove s390_isolate_bp_guest()

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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>
This commit is contained in:
Heiko Carstens 2023-02-28 13:57:49 +01:00 committed by Vasily Gorbik
parent f33f2d4c7c
commit 9b63fd2fc8
2 changed files with 0 additions and 11 deletions
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2
arch/s390/include/asm/processor.h
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@ -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);

9
arch/s390/kernel/processor.c
View file

@ -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);