Le 26/08/2025 à 06:13, K Prateek Nayak a écrit :
Unify the tl_mc_mask() wrapper around cpu_coregroup_mask() used by core,
x86, powerpc, and s390.
No functional changes intended.
Signed-off-by: K Prateek Nayak <kprateek.na...@amd.com>
---
arch/powerpc/kernel/smp.c | 7 +------
arch/s390/kernel/topology.c | 7 +------
arch/x86/kernel/smpboot.c | 7 -------
include/linux/sched/topology.h | 8 +++++++-
kernel/sched/topology.c | 7 -------
5 files changed, 9 insertions(+), 27 deletions(-)
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index c58ddf84fe63..40719679385b 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -1062,11 +1062,6 @@ const struct cpumask *cpu_coregroup_mask(int cpu)
return cpu_node_mask(cpu);
}
-
-static const struct cpumask *cpu_mc_mask(struct sched_domain_topology_level
*tl, int cpu)
-{
- return cpu_corgrp_mask(cpu);
-}
#endif
static const struct cpumask *cpu_pkg_mask(struct sched_domain_topology_level *tl, int cpu)
@@ -1729,7 +1724,7 @@ static void __init build_sched_topology(void)
#ifdef CONFIG_SCHED_MC
if (has_coregroup_support()) {
powerpc_topology[i++] =
- SDTL_INIT(cpu_mc_mask, powerpc_shared_proc_flags, MC);
+ SDTL_INIT(tl_mc_mask, powerpc_shared_proc_flags, MC);
}
#endif
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index c88eda847309..8dbf32f362e1 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -514,11 +514,6 @@ const struct cpumask *cpu_coregroup_mask(int cpu)
return &cpu_topology[cpu].core_mask;
}
-static const struct cpumask *cpu_mc_mask(struct sched_domain_topology_level *tl, int cpu)
-{
- return &cpu_topology[cpu].core_mask;
-}
-
static const struct cpumask *cpu_book_mask(struct sched_domain_topology_level
*tl, int cpu)
{
return &cpu_topology[cpu].book_mask;
@@ -536,7 +531,7 @@ static const struct cpumask *cpu_pkg_mask(struct
sched_domain_topology_level *tl
static struct sched_domain_topology_level s390_topology[] = {
SDTL_INIT(tl_smt_mask, cpu_smt_flags, SMT),
- SDTL_INIT(cpu_mc_mask, cpu_core_flags, MC),
+ SDTL_INIT(tl_mc_mask, cpu_core_flags, MC),
SDTL_INIT(cpu_book_mask, NULL, BOOK),
SDTL_INIT(cpu_drawer_mask, NULL, DRAWER),
SDTL_INIT(cpu_pkg_mask, NULL, PKG),
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 81a40d777d65..bfbcac9a73d1 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -472,13 +472,6 @@ static int x86_cluster_flags(void)
}
#endif
-#ifdef CONFIG_SCHED_MC
-static const struct cpumask *tl_mc_mask(struct sched_domain_topology_level
*tl, int cpu)
-{
- return cpu_coregroup_mask(cpu);
-}
-#endif
-
static const struct cpumask *tl_pkg_mask(struct sched_domain_topology_level
*tl, int cpu)
{
return cpu_node_mask(cpu);
diff --git a/include/linux/sched/topology.h b/include/linux/sched/topology.h
index e54501cc8e47..075d1f063668 100644
--- a/include/linux/sched/topology.h
+++ b/include/linux/sched/topology.h
@@ -63,7 +63,13 @@ static inline int cpu_core_flags(void)
{
return SD_SHARE_LLC;
}
-#endif
+
+static const __maybe_unused
Same as the two previous patches, __maybe_unused shouldn't be required.
+struct cpumask *tl_mc_mask(struct sched_domain_topology_level *tl, int cpu)
+{
+ return cpu_coregroup_mask(cpu);
+}
+#endif /* CONFIG_SCHED_MC */
#ifdef CONFIG_NUMA
static inline int cpu_numa_flags(void)
diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
index 4530cbad41e1..77d14430c5e1 100644
--- a/kernel/sched/topology.c
+++ b/kernel/sched/topology.c
@@ -1724,13 +1724,6 @@ sd_init(struct sched_domain_topology_level *tl,
return sd;
}
-#ifdef CONFIG_SCHED_MC
-static const struct cpumask *tl_mc_mask(struct sched_domain_topology_level
*tl, int cpu)
-{
- return cpu_coregroup_mask(cpu);
-}
-#endif
-
static const struct cpumask *tl_pkg_mask(struct sched_domain_topology_level
*tl, int cpu)
{
return cpu_node_mask(cpu);
