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* [PATCH 1/3] x86: sparse warning in cpufreq/powernow-k8.c
@ 2008-02-07 0:07 Harvey Harrison
[not found] ` <20080207043547.GA10078@codemonkey.org.uk>
0 siblings, 1 reply; 2+ messages in thread
From: Harvey Harrison @ 2008-02-07 0:07 UTC (permalink / raw)
To: Ingo Molnar; +Cc: H. Peter Anvin, Thomas Gleixner, LKML
Nested per_cpu accessors will shadow the internal __ptr variable. Use
a temporary first_core variable.
arch/x86/kernel/cpu/cpufreq/powernow-k8.c:1239:9: warning: symbol '__ptr' shadows an earlier one
arch/x86/kernel/cpu/cpufreq/powernow-k8.c:1239:9: originally declared here
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
---
arch/x86/kernel/cpu/cpufreq/powernow-k8.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index 5affe91..e64eee0 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -1234,9 +1234,10 @@ static unsigned int powernowk8_get (unsigned int cpu)
{
struct powernow_k8_data *data;
cpumask_t oldmask = current->cpus_allowed;
+ unsigned int first_core = first_cpu(per_cpu(cpu_core_map, cpu));
unsigned int khz = 0;
- data = per_cpu(powernow_data, first_cpu(per_cpu(cpu_core_map, cpu)));
+ data = per_cpu(powernow_data, first_core);
if (!data)
return -EINVAL;
--
1.5.4.1189.g38fd5
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH 1/3] x86: sparse warning in cpufreq/powernow-k8.c
[not found] ` <20080207043547.GA10078@codemonkey.org.uk>
@ 2008-02-07 7:18 ` Harvey Harrison
0 siblings, 0 replies; 2+ messages in thread
From: Harvey Harrison @ 2008-02-07 7:18 UTC (permalink / raw)
To: Dave Jones; +Cc: Ingo Molnar, H. Peter Anvin, Thomas Gleixner, LKML
On Wed, 2008-02-06 at 23:35 -0500, Dave Jones wrote:
> On Wed, Feb 06, 2008 at 04:07:47PM -0800, Harvey Harrison wrote:
> > Nested per_cpu accessors will shadow the internal __ptr variable. Use
> > a temporary first_core variable.
> >
> > arch/x86/kernel/cpu/cpufreq/powernow-k8.c:1239:9: warning: symbol '__ptr' shadows an earlier one
> > arch/x86/kernel/cpu/cpufreq/powernow-k8.c:1239:9: originally declared here
> >
> > Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
>
> Already fixed in cpufreq.git
>
> (Please also Cc me on cpufreq patches, thanks)
>
Sorry about that, I've been sending Ingo a bunch of x86 patches, didn't
think to look further than that. Will keep in mind.
Harvey
^ permalink raw reply [flat|nested] 2+ messages in thread
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2008-02-07 0:07 [PATCH 1/3] x86: sparse warning in cpufreq/powernow-k8.c Harvey Harrison
[not found] ` <20080207043547.GA10078@codemonkey.org.uk>
2008-02-07 7:18 ` Harvey Harrison
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