From: Andi Kleen Date: Tue, 20 Jul 2010 22:19:49 +0000 (-0700) Subject: x86, gcc-4.6: Fix set but not read variables X-Git-Tag: v3.0~4102^3 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=fa10ba64ac94fec4611b79804023eb087862ffe0;p=platform%2Fkernel%2Flinux-amlogic.git 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 LKML-Reference: <201007202219.o6KMJnQ0021072@imap1.linux-foundation.org> Signed-off-by: Andrew Morton Signed-off-by: H. Peter Anvin --- diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c index b5d8b0b..a2e0caf 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 fd31a44..7d28d7d 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);