1 files changed, 0 insertions, 141 deletions
diff --git a/arch/s390/kernel/s390_ext.c b/arch/s390/kernel/s390_ext.c
deleted file mode 100644
index 59618bcd99b..00000000000
--- a/arch/s390/kernel/s390_ext.c
+++ /dev/null
@@ -1,141 +0,0 @@
-/*
- *  arch/s390/kernel/s390_ext.c
- *
- *  S390 version
- *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
- *    Author(s): Holger Smolinski (Holger.Smolinski@de.ibm.com),
- *               Martin Schwidefsky (schwidefsky@de.ibm.com)
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/ftrace.h>
-#include <linux/errno.h>
-#include <linux/kernel_stat.h>
-#include <linux/interrupt.h>
-#include <asm/cputime.h>
-#include <asm/lowcore.h>
-#include <asm/s390_ext.h>
-#include <asm/irq_regs.h>
-#include <asm/irq.h>
-#include "entry.h"
-
-/*
- * ext_int_hash[index] is the start of the list for all external interrupts
- * that hash to this index. With the current set of external interrupts 
- * (0x1202 external call, 0x1004 cpu timer, 0x2401 hwc console, 0x4000
- * iucv and 0x2603 pfault) this is always the first element. 
- */
-ext_int_info_t *ext_int_hash[256] = { NULL, };
-
-static inline int ext_hash(__u16 code)
-{
-	return (code + (code >> 9)) & 0xff;
-}
-
-int register_external_interrupt(__u16 code, ext_int_handler_t handler)
-{
-        ext_int_info_t *p;
-        int index;
-
-	p = kmalloc(sizeof(ext_int_info_t), GFP_ATOMIC);
-        if (p == NULL)
-                return -ENOMEM;
-        p->code = code;
-        p->handler = handler;
-	index = ext_hash(code);
-        p->next = ext_int_hash[index];
-        ext_int_hash[index] = p;
-        return 0;
-}
-
-int register_early_external_interrupt(__u16 code, ext_int_handler_t handler,
-				      ext_int_info_t *p)
-{
-        int index;
-
-        if (p == NULL)
-                return -EINVAL;
-        p->code = code;
-        p->handler = handler;
-	index = ext_hash(code);
-        p->next = ext_int_hash[index];
-        ext_int_hash[index] = p;
-        return 0;
-}
-
-int unregister_external_interrupt(__u16 code, ext_int_handler_t handler)
-{
-        ext_int_info_t *p, *q;
-        int index;
-
-	index = ext_hash(code);
-        q = NULL;
-        p = ext_int_hash[index];
-        while (p != NULL) {
-                if (p->code == code && p->handler == handler)
-                        break;
-                q = p;
-                p = p->next;
-        }
-        if (p == NULL)
-                return -ENOENT;
-        if (q != NULL)
-                q->next = p->next;
-        else
-                ext_int_hash[index] = p->next;
-	kfree(p);
-        return 0;
-}
-
-int unregister_early_external_interrupt(__u16 code, ext_int_handler_t handler,
-					ext_int_info_t *p)
-{
-	ext_int_info_t *q;
-	int index;
-
-	if (p == NULL || p->code != code || p->handler != handler)
-		return -EINVAL;
-	index = ext_hash(code);
-	q = ext_int_hash[index];
-	if (p != q) {
-		while (q != NULL) {
-			if (q->next == p)
-				break;
-			q = q->next;
-		}
-		if (q == NULL)
-			return -ENOENT;
-		q->next = p->next;
-	} else
-		ext_int_hash[index] = p->next;
-	return 0;
-}
-
-void __irq_entry do_extint(struct pt_regs *regs, unsigned short code)
-{
-        ext_int_info_t *p;
-        int index;
-	struct pt_regs *old_regs;
-
-	old_regs = set_irq_regs(regs);
-	s390_idle_check();
-	irq_enter();
-	if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator)
-		/* Serve timer interrupts first. */
-		clock_comparator_work();
-	kstat_cpu(smp_processor_id()).irqs[EXTERNAL_INTERRUPT]++;
-	if (code != 0x1004)
-		__get_cpu_var(s390_idle).nohz_delay = 1;
-        index = ext_hash(code);
-	for (p = ext_int_hash[index]; p; p = p->next) {
-		if (likely(p->code == code))
-			p->handler(code);
-	}
-	irq_exit();
-	set_irq_regs(old_regs);
-}
-
-EXPORT_SYMBOL(register_external_interrupt);
-EXPORT_SYMBOL(unregister_external_interrupt);