Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec...

[sfrench/cifs-2.6.git] / arch / x86 / kernel / apic / io_apic.c

diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 33f3563a2a52a8b40cc2a07d8a60a03a583457a7..e41ed24ab26d5b51490ffa8f9a7c58a653b829d8 100644 (file)
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -89,8 +89,8 @@ int nr_ioapics;
 /* IO APIC gsi routing info */
 struct mp_ioapic_gsi  mp_gsi_routing[MAX_IO_APICS];
 
-/* The last gsi number used */
-u32 gsi_end;
+/* The one past the highest gsi number used */
+u32 gsi_top;
 
 /* MP IRQ source entries */
 struct mpc_intsrc mp_irqs[MAX_IRQ_SOURCES];
@@ -1035,7 +1035,7 @@ static int pin_2_irq(int idx, int apic, int pin)
                if (gsi >= NR_IRQS_LEGACY)
                        irq = gsi;
                else
-                       irq = gsi_end + 1 + gsi;
+                       irq = gsi_top + gsi;
        }
 
 #ifdef CONFIG_X86_32
@@ -3853,7 +3853,7 @@ void __init probe_nr_irqs_gsi(void)
 {
        int nr;
 
-       nr = gsi_end + 1 + NR_IRQS_LEGACY;
+       nr = gsi_top + NR_IRQS_LEGACY;
        if (nr > nr_irqs_gsi)
                nr_irqs_gsi = nr;
 
@@ -4294,8 +4294,8 @@ void __init mp_register_ioapic(int id, u32 address, u32 gsi_base)
         */
        nr_ioapic_registers[idx] = entries;
 
-       if (mp_gsi_routing[idx].gsi_end > gsi_end)
-               gsi_end = mp_gsi_routing[idx].gsi_end;
+       if (mp_gsi_routing[idx].gsi_end >= gsi_top)
+               gsi_top = mp_gsi_routing[idx].gsi_end + 1;
 
        printk(KERN_INFO "IOAPIC[%d]: apic_id %d, version %d, address 0x%x, "
               "GSI %d-%d\n", idx, mp_ioapics[idx].apicid,