x86: I/O APIC: Include <asm/i8259.h> required by some code

Maciej W. Rozycki · Ingo Molnar · commit 17c44697f293 · 2008-07-18T14:27:38.000+02:00
Include &lt;asm/i8259.h&gt; for i8259A_lock used in print_PIC() -- #if-0-ed out
by default.  The 32-bit version gets it right already.

The plan is to enable this code with "apic=debug" eventually.  This will
aid with debugging strange problems without the need to ask people to
apply patches.

Signed-off-by: Maciej W. Rozycki &lt;macro@linux-mips.org&gt;
Signed-off-by: Ingo Molnar &lt;mingo@elte.hu&gt;
diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
@@ -45,6 +45,7 @@
 #include <asm/proto.h>
 #include <asm/acpi.h>
 #include <asm/dma.h>
+#include <asm/i8259.h>
 #include <asm/nmi.h>
 #include <asm/msidef.h>
 #include <asm/hypertransport.h>
