[RFC PATCH 4/4] sched/topology: remove unused sd param from arch_scale_cpu_capacity()

[Vincent Guittot]

struct sched_domain *sd parameter is no more used in arch_scale_cpu_capacity()
so we can remote it.

Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: "Rafael J. Wysocki" <rafael@xxxxxxxxxx>
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Vincent Guittot <vincent.guittot@xxxxxxxxxx>

---
 arch/arm/kernel/topology.c       | 2 +-
 drivers/base/arch_topology.c     | 6 +++---
 include/linux/arch_topology.h    | 2 +-
 kernel/sched/cpufreq_schedutil.c | 2 +-
 kernel/sched/deadline.c          | 2 +-
 kernel/sched/fair.c              | 8 ++++----
 kernel/sched/pelt.c              | 2 +-
 kernel/sched/sched.h             | 4 ++--
 8 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c
index 24ac3ca..d3d75c5 100644
--- a/arch/arm/kernel/topology.c
+++ b/arch/arm/kernel/topology.c
@@ -175,7 +175,7 @@ static void update_cpu_capacity(unsigned int cpu)
 	topology_set_cpu_scale(cpu, cpu_capacity(cpu) / middle_capacity);
 
 	pr_info("CPU%u: update cpu_capacity %lu\n",
-		cpu, topology_get_cpu_scale(NULL, cpu));
+		cpu, topology_get_cpu_scale(cpu));
 }
 
 #else
diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
index e7cb0c6..6dc9339 100644
--- a/drivers/base/arch_topology.c
+++ b/drivers/base/arch_topology.c
@@ -44,7 +44,7 @@ static ssize_t cpu_capacity_show(struct device *dev,
 {
 	struct cpu *cpu = container_of(dev, struct cpu, dev);
 
-	return sprintf(buf, "%lu\n", topology_get_cpu_scale(NULL, cpu->dev.id));
+	return sprintf(buf, "%lu\n", topology_get_cpu_scale(cpu->dev.id));
 }
 
 static ssize_t cpu_capacity_store(struct device *dev,
@@ -124,7 +124,7 @@ void topology_normalize_cpu_scale(void)
 			/ capacity_scale;
 		topology_set_cpu_scale(cpu, capacity);
 		pr_debug("cpu_capacity: CPU%d cpu_capacity=%lu\n",
-			cpu, topology_get_cpu_scale(NULL, cpu));
+			cpu, topology_get_cpu_scale(cpu));
 	}
 	mutex_unlock(&cpu_scale_mutex);
 }
@@ -194,7 +194,7 @@ init_cpu_capacity_callback(struct notifier_block *nb,
 	cpumask_andnot(cpus_to_visit, cpus_to_visit, policy->related_cpus);
 
 	for_each_cpu(cpu, policy->related_cpus) {
-		raw_capacity[cpu] = topology_get_cpu_scale(NULL, cpu) *
+		raw_capacity[cpu] = topology_get_cpu_scale(cpu) *
 				    policy->cpuinfo.max_freq / 1000UL;
 		capacity_scale = max(raw_capacity[cpu], capacity_scale);
 	}
diff --git a/include/linux/arch_topology.h b/include/linux/arch_topology.h
index 2b70941..5df6773 100644
--- a/include/linux/arch_topology.h
+++ b/include/linux/arch_topology.h
@@ -17,7 +17,7 @@ DECLARE_PER_CPU(unsigned long, cpu_scale);
 
 struct sched_domain;
 static inline
-unsigned long topology_get_cpu_scale(struct sched_domain *sd, int cpu)
+unsigned long topology_get_cpu_scale(int cpu)
 {
 	return per_cpu(cpu_scale, cpu);
 }
diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
index 3fffad3..01b95057 100644
--- a/kernel/sched/cpufreq_schedutil.c
+++ b/kernel/sched/cpufreq_schedutil.c
@@ -202,7 +202,7 @@ static unsigned long sugov_get_util(struct sugov_cpu *sg_cpu)
 	struct rq *rq = cpu_rq(sg_cpu->cpu);
 	unsigned long util, irq, max;
 
-	sg_cpu->max = max = arch_scale_cpu_capacity(NULL, sg_cpu->cpu);
+	sg_cpu->max = max = arch_scale_cpu_capacity(sg_cpu->cpu);
 	sg_cpu->bw_dl = cpu_bw_dl(rq);
 
 	if (rt_rq_is_runnable(&rq->rt))
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 997ea7b..5f763b1 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -1196,7 +1196,7 @@ static void update_curr_dl(struct rq *rq)
 						 &curr->dl);
 	} else {
 		unsigned long scale_freq = arch_scale_freq_capacity(cpu);
-		unsigned long scale_cpu = arch_scale_cpu_capacity(NULL, cpu);
+		unsigned long scale_cpu = arch_scale_cpu_capacity(cpu);
 
 		scaled_delta_exec = cap_scale(delta_exec, scale_freq);
 		scaled_delta_exec = cap_scale(scaled_delta_exec, scale_cpu);
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index cff1682..2eeac7c 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -748,7 +748,7 @@ void post_init_entity_util_avg(struct sched_entity *se)
 {
 	struct cfs_rq *cfs_rq = cfs_rq_of(se);
 	struct sched_avg *sa = &se->avg;
-	long cpu_scale = arch_scale_cpu_capacity(NULL, cpu_of(rq_of(cfs_rq)));
+	long cpu_scale = arch_scale_cpu_capacity(cpu_of(rq_of(cfs_rq)));
 	long cap = (long)(cpu_scale - cfs_rq->avg.util_avg) / 2;
 
 	if (cap > 0) {
@@ -3175,7 +3175,7 @@ update_tg_cfs_runnable(struct cfs_rq *cfs_rq, struct sched_entity *se, struct cf
 	 * is not we rescale running_sum 1st
 	 */
 	running_sum = se->avg.util_sum /
-		arch_scale_cpu_capacity(NULL, cpu_of(rq_of(cfs_rq)));
+		arch_scale_cpu_capacity(cpu_of(rq_of(cfs_rq)));
 	runnable_sum = max(runnable_sum, running_sum);
 
 	load_sum = (s64)se_weight(se) * runnable_sum;
@@ -7462,7 +7462,7 @@ static inline int get_sd_load_idx(struct sched_domain *sd,
 static unsigned long scale_rt_capacity(int cpu)
 {
 	struct rq *rq = cpu_rq(cpu);
-	unsigned long max = arch_scale_cpu_capacity(NULL, cpu);
+	unsigned long max = arch_scale_cpu_capacity(cpu);
 	unsigned long used, free;
 	unsigned long irq;
 
@@ -7487,7 +7487,7 @@ static void update_cpu_capacity(struct sched_domain *sd, int cpu)
 	unsigned long capacity = scale_rt_capacity(cpu);
 	struct sched_group *sdg = sd->groups;
 
-	cpu_rq(cpu)->cpu_capacity_orig = arch_scale_cpu_capacity(sd, cpu);
+	cpu_rq(cpu)->cpu_capacity_orig = arch_scale_cpu_capacity(cpu);
 
 	if (!capacity)
 		capacity = 1;
diff --git a/kernel/sched/pelt.c b/kernel/sched/pelt.c
index 35475c0..5efa152 100644
--- a/kernel/sched/pelt.c
+++ b/kernel/sched/pelt.c
@@ -114,7 +114,7 @@ accumulate_sum(u64 delta, int cpu, struct sched_avg *sa,
 	u64 periods;
 
 	scale_freq = arch_scale_freq_capacity(cpu);
-	scale_cpu = arch_scale_cpu_capacity(NULL, cpu);
+	scale_cpu = arch_scale_cpu_capacity(cpu);
 
 	delta += sa->period_contrib;
 	periods = delta / 1024; /* A period is 1024us (~1ms) */
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index b1715b8..8b306ce 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1756,7 +1756,7 @@ unsigned long arch_scale_freq_capacity(int cpu)
 #ifdef CONFIG_SMP
 #ifndef arch_scale_cpu_capacity
 static __always_inline
-unsigned long arch_scale_cpu_capacity(struct sched_domain *sd, int cpu)
+unsigned long arch_scale_cpu_capacity(int cpu)
 {
 	return SCHED_CAPACITY_SCALE;
 }
@@ -1764,7 +1764,7 @@ unsigned long arch_scale_cpu_capacity(struct sched_domain *sd, int cpu)
 #else
 #ifndef arch_scale_cpu_capacity
 static __always_inline
-unsigned long arch_scale_cpu_capacity(void __always_unused *sd, int cpu)
+unsigned long arch_scale_cpu_capacity(int cpu)
 {
 	return SCHED_CAPACITY_SCALE;
 }
-- 
2.7.4