The following commit has been merged into the sched/urgent branch of tip:
Commit-ID: e5bc44e47c531860be96ac615314b1ab23d5aa2b
Gitweb: https://git.kernel.org/tip/e5bc44e47c531860be96ac615314b1ab23d5aa2b
Author: Vincent Guittot <vincent.guittot@xxxxxxxxxx>
AuthorDate: Thu, 25 Apr 2024 09:37:09 +02:00
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitterDate: Wed, 15 May 2024 10:22:16 +02:00
arch/topology: Fix variable naming to avoid shadowing
Using 'hw_pressure' for local variable name is confusing in regard to the
per-CPU 'hw_pressure' variable that uses the same name:
include/linux/arch_topology.h:DECLARE_PER_CPU(unsigned long, hw_pressure);
.. which puts it into a global scope for all code that includes
<linux/topology.h>, shadowing the local variable.
Rename it to avoid compiler confusion & Sparse warnings.
[ mingo: Expanded the changelog. ]
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Vincent Guittot <vincent.guittot@xxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Reviewed-by: Lukasz Luba <lukasz.luba@xxxxxxx>
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
Acked-by: Sudeep Holla <sudeep.holla@xxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240425073709.379016-1-vincent.guittot@xxxxxxxxxx
Closes: https://lore.kernel.org/oe-kbuild-all/202404250740.VhQQoD7N-lkp@xxxxxxxxx/
Fixes: d4dbc991714e ("sched/cpufreq: Rename arch_update_thermal_pressure() => arch_update_hw_pressure()")
Tested-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx> # QC SM8550 QRD
---
drivers/base/arch_topology.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
index 0248912..c66d070 100644
--- a/drivers/base/arch_topology.c
+++ b/drivers/base/arch_topology.c
@@ -179,7 +179,7 @@ DEFINE_PER_CPU(unsigned long, hw_pressure);
void topology_update_hw_pressure(const struct cpumask *cpus,
unsigned long capped_freq)
{
- unsigned long max_capacity, capacity, hw_pressure;
+ unsigned long max_capacity, capacity, pressure;
u32 max_freq;
int cpu;
@@ -196,12 +196,12 @@ void topology_update_hw_pressure(const struct cpumask *cpus,
else
capacity = mult_frac(max_capacity, capped_freq, max_freq);
- hw_pressure = max_capacity - capacity;
+ pressure = max_capacity - capacity;
- trace_hw_pressure_update(cpu, hw_pressure);
+ trace_hw_pressure_update(cpu, pressure);
for_each_cpu(cpu, cpus)
- WRITE_ONCE(per_cpu(hw_pressure, cpu), hw_pressure);
+ WRITE_ONCE(per_cpu(hw_pressure, cpu), pressure);
}
EXPORT_SYMBOL_GPL(topology_update_hw_pressure);
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