[ACPI] acpi_register_gsi() fix needed for ACPICA 20051021

Use the #define for ACPI_LEVEL_SENSITIVE instead of assuming
non-zero, because ACPICA 20051021 changes its value to zero.

Also, use uniform variable names:
edge_level -> triggering
active_high_low -> polarity

Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c
index 1ca5269b1e86..d7cede83ba2e 100644
--- a/arch/i386/kernel/mpparse.c
+++ b/arch/i386/kernel/mpparse.c
@@ -1070,7 +1070,7 @@ void __init mp_config_acpi_legacy_irqs (void)
 
 #define MAX_GSI_NUM     4096
 
-int mp_register_gsi (u32 gsi, int edge_level, int active_high_low)
+int mp_register_gsi (u32 gsi, int triggering, int polarity)
 {
         int                     ioapic = -1;
         int                     ioapic_pin = 0;
@@ -1119,7 +1119,7 @@ int mp_register_gsi (u32 gsi, int edge_level, int active_high_low)
 
         mp_ioapic_routing[ioapic].pin_programmed[idx] |= (1<<bit);
 
-        if (edge_level) {
+        if (triggering == ACPI_LEVEL_SENSITIVE) {
                 /*
                  * For PCI devices assign IRQs in order, avoiding gaps
                  * due to unused I/O APIC pins.
@@ -1141,8 +1141,8 @@ int mp_register_gsi (u32 gsi, int edge_level, int active_high_low)
         }
 
         io_apic_set_pci_routing(ioapic, ioapic_pin, gsi,
-                    edge_level == ACPI_EDGE_SENSITIVE ? 0 : 1,
-                    active_high_low == ACPI_ACTIVE_HIGH ? 0 : 1);
+                    triggering == ACPI_EDGE_SENSITIVE ? 0 : 1,
+                    polarity == ACPI_ACTIVE_HIGH ? 0 : 1);
         return gsi;
 }