x86, gcc-4.6: Fix set but not read variables

Just some dead code, no real bugs.

Found by gcc 4.6 -Wall

Signed-off-by: Andi Kleen <ak@linux.intel.com>
LKML-Reference: <201007202219.o6KMJnQ0021072@imap1.linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

2 files changed, 3 insertions, 4 deletions

diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index b5d8b0bcf235..a2e0caf26e17 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -280,7 +280,7 @@ void __init early_gart_iommu_check(void)
          * or BIOS forget to put that in reserved.
          * try to update e820 to make that region as reserved.
          */
-        u32 agp_aper_base = 0, agp_aper_order = 0;
+        u32 agp_aper_order = 0;
         int i, fix, slot, valid_agp = 0;
         u32 ctl;
         u32 aper_size = 0, aper_order = 0, last_aper_order = 0;
@@ -291,7 +291,7 @@ void __init early_gart_iommu_check(void)
                 return;
 
         /* This is mostly duplicate of iommu_hole_init */
-        agp_aper_base = search_agp_bridge(&agp_aper_order, &valid_agp);
+        search_agp_bridge(&agp_aper_order, &valid_agp);
 
         fix = 0;
         for (i = 0; i < ARRAY_SIZE(bus_dev_ranges); i++) {
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index fd31a441c61c..7d28d7d03885 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -433,13 +433,12 @@ static void generic_get_mtrr(unsigned int reg, unsigned long *base,
 {
         unsigned int mask_lo, mask_hi, base_lo, base_hi;
         unsigned int tmp, hi;
-        int cpu;
 
         /*
          * get_mtrr doesn't need to update mtrr_state, also it could be called
          * from any cpu, so try to print it out directly.
          */
-        cpu = get_cpu();
+        get_cpu();
 
         rdmsr(MTRRphysMask_MSR(reg), mask_lo, mask_hi);