linux-kernel - [PATCH v7 8/8] sched/topology: Unify tl_pkg

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Message-ID: <20250826041319.1284-9-kprateek.nayak@amd.com>
Date: Tue, 26 Aug 2025 04:13:19 +0000
From: K Prateek Nayak <kprateek.nayak@....com>
To: Madhavan Srinivasan <maddy@...ux.ibm.com>, Michael Ellerman
	<mpe@...erman.id.au>, Nicholas Piggin <npiggin@...il.com>, Christophe Leroy
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	<rostedt@...dmis.org>, Ben Segall <bsegall@...gle.com>, Mel Gorman
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	<kprateek.nayak@....com>, <thomas.weissschuh@...utronix.de>, Li Chen
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Subject: [PATCH v7 8/8] sched/topology: Unify tl_pkg_mask() across core and all arch

Unify the tl_pkg_mask() wrapper around cpu_nod_mask() across core, x86,
powerpc, and s390.

No functional changes intended.

Signed-off-by: K Prateek Nayak <kprateek.nayak@....com>
---
 arch/powerpc/kernel/smp.c      | 7 +------
 arch/s390/kernel/topology.c    | 7 +------
 arch/x86/kernel/smpboot.c      | 5 -----
 include/linux/sched/topology.h | 6 ++++++
 kernel/sched/topology.c        | 5 -----
 5 files changed, 8 insertions(+), 22 deletions(-)

diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 40719679385b..8e869c13f7ed 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -1064,11 +1064,6 @@ const struct cpumask *cpu_coregroup_mask(int cpu)
 }
 #endif
 
-static const struct cpumask *cpu_pkg_mask(struct sched_domain_topology_level *tl, int cpu)
-{
-	return cpu_node_mask(cpu);
-}
-
 static int __init init_big_cores(void)
 {
 	int cpu;
@@ -1728,7 +1723,7 @@ static void __init build_sched_topology(void)
 	}
 #endif
 
-	powerpc_topology[i++] = SDTL_INIT(cpu_pkg_mask, powerpc_shared_proc_flags, PKG);
+	powerpc_topology[i++] = SDTL_INIT(tl_pkg_mask, powerpc_shared_proc_flags, PKG);
 
 	/* There must be one trailing NULL entry left.  */
 	BUG_ON(i >= ARRAY_SIZE(powerpc_topology) - 1);
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 8dbf32f362e1..8f5b6ecc055f 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -524,17 +524,12 @@ static const struct cpumask *cpu_drawer_mask(struct sched_domain_topology_level
 	return &cpu_topology[cpu].drawer_mask;
 }
 
-static const struct cpumask *cpu_pkg_mask(struct sched_domain_topology_level *tl, int cpu)
-{
-	return cpu_node_mask(cpu);
-}
-
 static struct sched_domain_topology_level s390_topology[] = {
 	SDTL_INIT(tl_smt_mask, cpu_smt_flags, SMT),
 	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),
+	SDTL_INIT(tl_pkg_mask, NULL, PKG),
 	{ NULL, },
 };
 
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index bfbcac9a73d1..6c0ab30a80e2 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -472,11 +472,6 @@ static int x86_cluster_flags(void)
 }
 #endif
 
-static const struct cpumask *tl_pkg_mask(struct sched_domain_topology_level *tl, int cpu)
-{
-	return cpu_node_mask(cpu);
-}
-
 /*
  * Set if a package/die has multiple NUMA nodes inside.
  * AMD Magny-Cours, Intel Cluster-on-Die, and Intel
diff --git a/include/linux/sched/topology.h b/include/linux/sched/topology.h
index 075d1f063668..807603bfe8ff 100644
--- a/include/linux/sched/topology.h
+++ b/include/linux/sched/topology.h
@@ -71,6 +71,12 @@ struct cpumask *tl_mc_mask(struct sched_domain_topology_level *tl, int cpu)
 }
 #endif /* CONFIG_SCHED_MC */
 
+static const __maybe_unused
+struct cpumask *tl_pkg_mask(struct sched_domain_topology_level *tl, int cpu)
+{
+	return cpu_node_mask(cpu);
+}
+
 #ifdef CONFIG_NUMA
 static inline int cpu_numa_flags(void)
 {
diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
index 77d14430c5e1..18889bd97e22 100644
--- a/kernel/sched/topology.c
+++ b/kernel/sched/topology.c
@@ -1724,11 +1724,6 @@ sd_init(struct sched_domain_topology_level *tl,
 	return sd;
 }
 
-static const struct cpumask *tl_pkg_mask(struct sched_domain_topology_level *tl, int cpu)
-{
-	return cpu_node_mask(cpu);
-}
-
 /*
  * Topology list, bottom-up.
  */
-- 
2.34.1