1 files changed, 1 insertions, 49 deletions

diff --git a/arch/s390/kernel/abs_lowcore.c b/arch/s390/kernel/abs_lowcore.c
index fb92e8ed0525..6252b7d115dd 100644
--- a/arch/s390/kernel/abs_lowcore.c
+++ b/arch/s390/kernel/abs_lowcore.c
@@ -2,13 +2,9 @@
 
 #include <linux/pgtable.h>
 #include <asm/abs_lowcore.h>
-
-#define ABS_LOWCORE_UNMAPPED	1
-#define ABS_LOWCORE_LAP_ON	2
-#define ABS_LOWCORE_IRQS_ON	4
+#include <asm/sections.h>
 
 unsigned long __bootdata_preserved(__abs_lowcore);
-bool __ro_after_init abs_lowcore_mapped;
 
 int abs_lowcore_map(int cpu, struct lowcore *lc, bool alloc)
 {
@@ -49,47 +45,3 @@ void abs_lowcore_unmap(int cpu)
 		addr += PAGE_SIZE;
 	}
 }
-
-struct lowcore *get_abs_lowcore(unsigned long *flags)
-{
-	unsigned long irq_flags;
-	union ctlreg0 cr0;
-	int cpu;
-
-	*flags = 0;
-	cpu = get_cpu();
-	if (abs_lowcore_mapped) {
-		return ((struct lowcore *)__abs_lowcore) + cpu;
-	} else {
-		if (cpu != 0)
-			panic("Invalid unmapped absolute lowcore access\n");
-		local_irq_save(irq_flags);
-		if (!irqs_disabled_flags(irq_flags))
-			*flags |= ABS_LOWCORE_IRQS_ON;
-		__ctl_store(cr0.val, 0, 0);
-		if (cr0.lap) {
-			*flags |= ABS_LOWCORE_LAP_ON;
-			__ctl_clear_bit(0, 28);
-		}
-		*flags |= ABS_LOWCORE_UNMAPPED;
-		return lowcore_ptr[0];
-	}
-}
-
-void put_abs_lowcore(struct lowcore *lc, unsigned long flags)
-{
-	if (abs_lowcore_mapped) {
-		if (flags)
-			panic("Invalid mapped absolute lowcore release\n");
-	} else {
-		if (smp_processor_id() != 0)
-			panic("Invalid mapped absolute lowcore access\n");
-		if (!(flags & ABS_LOWCORE_UNMAPPED))
-			panic("Invalid unmapped absolute lowcore release\n");
-		if (flags & ABS_LOWCORE_LAP_ON)
-			__ctl_set_bit(0, 28);
-		if (flags & ABS_LOWCORE_IRQS_ON)
-			local_irq_enable();
-	}
-	put_cpu();
-}