genirq: remove irq_to_desc_alloc

Remove the leftover of sparseirqs.

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

3 files changed, 3 insertions, 7 deletions

diff --git a/arch/x86/kernel/io_apic.c b/arch/x86/kernel/io_apic.c
index 683610517d2a..e03bc0f87eef 100644
--- a/arch/x86/kernel/io_apic.c
+++ b/arch/x86/kernel/io_apic.c
@@ -1257,11 +1257,7 @@ static void ioapic_register_intr(int irq, unsigned long trigger)
 {
         struct irq_desc *desc;
 
-        /* first time to use this irq_desc */
-        if (irq < 16)
-                desc = irq_to_desc(irq);
-        else
-                desc = irq_to_desc_alloc(irq);
+        desc = irq_to_desc(irq);
 
         if ((trigger == IOAPIC_AUTO && IO_APIC_irq_trigger(irq)) ||
             trigger == IOAPIC_LEVEL)
diff --git a/arch/x86/kernel/irqinit_32.c b/arch/x86/kernel/irqinit_32.c
index 9092103a18eb..a8d35998d308 100644
--- a/arch/x86/kernel/irqinit_32.c
+++ b/arch/x86/kernel/irqinit_32.c
@@ -70,7 +70,7 @@ void __init init_ISA_irqs (void)
          */
         for (i = 0; i < 16; i++) {
                 /* first time call this irq_desc */
-                struct irq_desc *desc = irq_to_desc_alloc(i);
+                struct irq_desc *desc = irq_to_desc(i);
 
                 desc->status = IRQ_DISABLED;
                 desc->action = NULL;
diff --git a/arch/x86/kernel/irqinit_64.c b/arch/x86/kernel/irqinit_64.c
index d17fbc26d96f..ff0235391285 100644
--- a/arch/x86/kernel/irqinit_64.c
+++ b/arch/x86/kernel/irqinit_64.c
@@ -144,7 +144,7 @@ void __init init_ISA_irqs(void)
 
         for (i = 0; i < 16; i++) {
                 /* first time call this irq_desc */
-                struct irq_desc *desc = irq_to_desc_alloc(i);
+                struct irq_desc *desc = irq_to_desc(i);
 
                 desc->status = IRQ_DISABLED;
                 desc->action = NULL;