x86: move ack_bad_irq() to irq.c

Share more duplicated code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

3 files changed, 23 insertions, 43 deletions

diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 3b912849897..ccf6c503fc3 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -12,6 +12,29 @@
 
 atomic_t irq_err_count;
 
+/*
+ * 'what should we do if we get a hw irq event on an illegal vector'.
+ * each architecture has to answer this themselves.
+ */
+void ack_bad_irq(unsigned int irq)
+{
+        printk(KERN_ERR "unexpected IRQ trap at vector %02x\n", irq);
+
+#ifdef CONFIG_X86_LOCAL_APIC
+        /*
+         * Currently unexpected vectors happen only on SMP and APIC.
+         * We _must_ ack these because every local APIC has only N
+         * irq slots per priority level, and a 'hanging, unacked' IRQ
+         * holds up an irq slot - in excessive cases (when multiple
+         * unexpected vectors occur) that might lock up the APIC
+         * completely.
+         * But only ack when the APIC is enabled -AK
+         */
+        if (cpu_has_apic)
+                ack_APIC_irq();
+#endif
+}
+
 #ifdef CONFIG_X86_32
 # define irq_stats(x)           (&per_cpu(irq_stat,x))
 #else
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index 6d9bf3936c7..a51382672de 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -25,29 +25,6 @@ EXPORT_PER_CPU_SYMBOL(irq_stat);
 DEFINE_PER_CPU(struct pt_regs *, irq_regs);
 EXPORT_PER_CPU_SYMBOL(irq_regs);
 
-/*
- * 'what should we do if we get a hw irq event on an illegal vector'.
- * each architecture has to answer this themselves.
- */
-void ack_bad_irq(unsigned int irq)
-{
-        printk(KERN_ERR "unexpected IRQ trap at vector %02x\n", irq);
-
-#ifdef CONFIG_X86_LOCAL_APIC
-        /*
-         * Currently unexpected vectors happen only on SMP and APIC.
-         * We _must_ ack these because every local APIC has only N
-         * irq slots per priority level, and a 'hanging, unacked' IRQ
-         * holds up an irq slot - in excessive cases (when multiple
-         * unexpected vectors occur) that might lock up the APIC
-         * completely.
-         * But only ack when the APIC is enabled -AK
-         */
-        if (cpu_has_apic)
-                ack_APIC_irq();
-#endif
-}
-
 #ifdef CONFIG_DEBUG_STACKOVERFLOW
 /* Debugging check for stack overflow: is there less than 1KB free? */
 static int check_stack_overflow(void)
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index 39ef7feb9ea..60eb84eb77a 100644
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -18,26 +18,6 @@
 #include <asm/idle.h>
 #include <asm/smp.h>
 
-/*
- * 'what should we do if we get a hw irq event on an illegal vector'.
- * each architecture has to answer this themselves.
- */
-void ack_bad_irq(unsigned int irq)
-{
-        printk(KERN_WARNING "unexpected IRQ trap at vector %02x\n", irq);
-        /*
-         * Currently unexpected vectors happen only on SMP and APIC.
-         * We _must_ ack these because every local APIC has only N
-         * irq slots per priority level, and a 'hanging, unacked' IRQ
-         * holds up an irq slot - in excessive cases (when multiple
-         * unexpected vectors occur) that might lock up the APIC
-         * completely.
-         * But don't ack when the APIC is disabled. -AK
-         */
-        if (!disable_apic)
-                ack_APIC_irq();
-}
-
 #ifdef CONFIG_DEBUG_STACKOVERFLOW
 /*
  * Probabilistic stack overflow check: