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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>
This commit is contained in:
Andi Kleen 2010-07-20 15:19:49 -07:00 committed by H. Peter Anvin
parent 5f755293ca
commit fa10ba64ac
2 changed files with 3 additions and 4 deletions
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4
arch/x86/kernel/aperture_64.c
View File

@ -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++) {

3
arch/x86/kernel/cpu/mtrr/generic.c
View File

@ -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);