[PATCH] PCI: cleanup unused variable about msi driver

In IA64 platform, msi driver does not use irq_vector variable, and in
x86 platform LAST_DEVICE_VECTOR should one before FIRST_SYSTEM_VECTOR,
this patch modify this.

Signed-off-by: bibo, mao <bibo.mao@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

3 files changed, 2 insertions, 7 deletions

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 3ec558dc6523..a81c5b99daf3 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -35,7 +35,6 @@ static int nr_msix_devices;
 
 #ifndef CONFIG_X86_IO_APIC
 int vector_irq[NR_VECTORS] = { [0 ... NR_VECTORS - 1] = -1};
-u8 irq_vector[NR_IRQ_VECTORS];
 #endif
 
 static struct msi_ops *msi_ops;
@@ -383,10 +382,6 @@ static int msi_init(void)
                 return status;
         }
 
-#ifndef CONFIG_X86_IO_APIC
-        irq_vector[0] = FIRST_DEVICE_VECTOR;
-#endif
-
         if (last_alloc_vector < 0) {
                 pci_msi_enable = 0;
                 printk(KERN_WARNING "PCI: No interrupt vectors available for MSI\n");
diff --git a/include/asm-i386/msi.h b/include/asm-i386/msi.h
index ed1014235e9c..b11c4b7dfaef 100644
--- a/include/asm-i386/msi.h
+++ b/include/asm-i386/msi.h
@@ -9,7 +9,7 @@
 #include <asm/desc.h>
 #include <mach_apic.h>
 
-#define LAST_DEVICE_VECTOR              232
+#define LAST_DEVICE_VECTOR      (FIRST_SYSTEM_VECTOR - 1)
 #define MSI_TARGET_CPU_SHIFT    12
 
 extern struct msi_ops msi_apic_ops;
diff --git a/include/asm-x86_64/msi.h b/include/asm-x86_64/msi.h
index 8d6d6bf8fad5..3ad2346624b2 100644
--- a/include/asm-x86_64/msi.h
+++ b/include/asm-x86_64/msi.h
@@ -10,7 +10,7 @@
 #include <asm/mach_apic.h>
 #include <asm/smp.h>
 
-#define LAST_DEVICE_VECTOR              232
+#define LAST_DEVICE_VECTOR      (FIRST_SYSTEM_VECTOR - 1)
 #define MSI_TARGET_CPU_SHIFT    12
 
 extern struct msi_ops msi_apic_ops;