Messages in this thread Patch in this message | | | From | "Rafael J. Wysocki" <> | Subject | [PATCH v2 3/3] cpuidle: teo: Drop utilized from struct teo_cpu | Date | Fri, 28 Jul 2023 12:01:49 +0200 |
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From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Because the utilized field in struct teo_cpu is only used locally in teo_select(), replace it with a local variable in that function.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> --- drivers/cpuidle/governors/teo.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-)
Index: linux-pm/drivers/cpuidle/governors/teo.c =================================================================== --- linux-pm.orig/drivers/cpuidle/governors/teo.c +++ linux-pm/drivers/cpuidle/governors/teo.c @@ -187,7 +187,6 @@ struct teo_bin { * @next_recent_idx: Index of the next @recent_idx entry to update. * @recent_idx: Indices of bins corresponding to recent "intercepts". * @util_threshold: Threshold above which the CPU is considered utilized - * @utilized: Whether the last sleep on the CPU happened while utilized */ struct teo_cpu { s64 time_span_ns; @@ -197,7 +196,6 @@ struct teo_cpu { int next_recent_idx; int recent_idx[NR_RECENT]; unsigned long util_threshold; - bool utilized; }; static DEFINE_PER_CPU(struct teo_cpu, teo_cpus); @@ -366,6 +364,7 @@ static int teo_select(struct cpuidle_dri int idx0 = 0, idx = -1; bool alt_intercepts, alt_recent; ktime_t delta_tick; + bool cpu_utilized; s64 duration_ns; int i; @@ -390,13 +389,13 @@ static int teo_select(struct cpuidle_dri goto end; } - cpu_data->utilized = teo_cpu_is_utilized(dev->cpu, cpu_data); + cpu_utilized = teo_cpu_is_utilized(dev->cpu, cpu_data); /* * If the CPU is being utilized over the threshold and there are only 2 * states to choose from, the metrics need not be considered, so choose * the shallowest non-polling state and exit. */ - if (drv->state_count < 3 && cpu_data->utilized) { + if (drv->state_count < 3 && cpu_utilized) { /* The CPU is utilized, so assume a short idle duration. */ duration_ns = teo_middle_of_bin(0, drv); /* @@ -558,7 +557,7 @@ static int teo_select(struct cpuidle_dri * been stopped already and the shallower state's target residency is * not sufficiently large. */ - if (cpu_data->utilized) { + if (cpu_utilized) { s64 span_ns; i = teo_find_shallower_state(drv, dev, idx, duration_ns, true);
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