X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=arch%2Fx86%2Fkernel%2Fio_apic_32.c;h=0ae4a9d00ce8554f60c0c67646a99410aa183931;hb=305b92a2323eeaa4b481f409d54f778dd7e21a46;hp=2e2f42074e18e0fa0de175b47325c5b895635c4d;hpb=233607dbbc823caf685e778cabc49fb7f679900b;p=linux-2.6-omap-h63xx.git

diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index 2e2f42074e1..0ae4a9d00ce 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -83,6 +83,10 @@ int mp_irq_entries;
 
 static int disable_timer_pin_1 __initdata;
 
+int first_system_vector = 0xfe;
+
+char system_vectors[NR_VECTORS] = { [0 ... NR_VECTORS-1] = SYS_VECTOR_FREE};
+
 /*
  * Rough estimation of how many shared IRQs there are, can
  * be changed anytime.
@@ -1176,7 +1180,7 @@ static int __assign_irq_vector(int irq)
 	offset = current_offset;
 next:
 	vector += 8;
-	if (vector >= FIRST_SYSTEM_VECTOR) {
+	if (vector >= first_system_vector) {
 		offset = (offset + 1) % 8;
 		vector = FIRST_DEVICE_VECTOR + offset;
 	}
@@ -2068,7 +2072,7 @@ static void __init setup_nmi(void)
  * cycles as some i82489DX-based boards have glue logic that keeps the
  * 8259A interrupt line asserted until INTA.  --macro
  */
-static inline void unlock_ExtINT_logic(void)
+static inline void __init unlock_ExtINT_logic(void)
 {
 	int apic, pin, i;
 	struct IO_APIC_route_entry entry0, entry1;
@@ -2269,7 +2273,7 @@ void __init setup_IO_APIC(void)
 	int i;
 
 	/* Reserve all the system vectors. */
-	for (i = FIRST_SYSTEM_VECTOR; i < NR_VECTORS; i++)
+	for (i = first_system_vector; i < NR_VECTORS; i++)
 		set_bit(i, used_vectors);
 
 	enable_IO_APIC();
@@ -2444,6 +2448,7 @@ void destroy_irq(unsigned int irq)
 	dynamic_irq_cleanup(irq);
 
 	spin_lock_irqsave(&vector_lock, flags);
+	clear_bit(irq_vector[irq], used_vectors);
 	irq_vector[irq] = 0;
 	spin_unlock_irqrestore(&vector_lock, flags);
 }