linux-kernel - [PATCH v2 4/8] x86/topology: Remove x86_smt_flags and use cpu_smt

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Message-ID: <20241223043407.1611-5-kprateek.nayak@amd.com>
Date: Mon, 23 Dec 2024 04:34:03 +0000
From: K Prateek Nayak <kprateek.nayak@....com>
To: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
	Borislav Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>,
	Peter Zijlstra <peterz@...radead.org>, Juri Lelli <juri.lelli@...hat.com>,
	Vincent Guittot <vincent.guittot@...aro.org>, <x86@...nel.org>,
	<linux-kernel@...r.kernel.org>
CC: "H. Peter Anvin" <hpa@...or.com>, Dietmar Eggemann
	<dietmar.eggemann@....com>, Steven Rostedt <rostedt@...dmis.org>, Ben Segall
	<bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>, Valentin Schneider
	<vschneid@...hat.com>, "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>, Tim Chen
	<tim.c.chen@...ux.intel.com>, Shrikanth Hegde <sshegde@...ux.ibm.com>, "Mario
 Limonciello" <mario.limonciello@....com>, Meng Li <li.meng@....com>, Huang
 Rui <ray.huang@....com>, "Gautham R. Shenoy" <gautham.shenoy@....com>, "K
 Prateek Nayak" <kprateek.nayak@....com>
Subject: [PATCH v2 4/8] x86/topology: Remove x86_smt_flags and use cpu_smt_flags directly

x86_*_flags() wrappers were introduced with commit d3d37d850d1d
("x86/sched: Add SD_ASYM_PACKING flags to x86 ITMT CPU") to add
x86_sched_itmt_flags() in addition to the default domain flags for SMT
and MC domain.

commit 995998ebdebd ("x86/sched: Remove SD_ASYM_PACKING from the
SMT domain flags") removed the ITMT flags for SMT domain but not the
x86_smt_flags() wrappers which directly returns cpu_smt_flags().

Remove x86_smt_flags() and directly use cpu_smt_flags() to derive the
flags for SMT domain. No functional changes intended.

Reviewed-by: Tim Chen <tim.c.chen@...ux.intel.com>
Signed-off-by: K Prateek Nayak <kprateek.nayak@....com>
---
v1..v2:

o Collected tags from Tim.
---
 arch/x86/kernel/smpboot.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index b5a8f0891135..6e300897b7ee 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -482,12 +482,6 @@ static int x86_core_flags(void)
 	return cpu_core_flags() | x86_sched_itmt_flags();
 }
 #endif
-#ifdef CONFIG_SCHED_SMT
-static int x86_smt_flags(void)
-{
-	return cpu_smt_flags();
-}
-#endif
 #ifdef CONFIG_SCHED_CLUSTER
 static int x86_cluster_flags(void)
 {
@@ -519,7 +513,7 @@ static void __init build_sched_topology(void)
 
 #ifdef CONFIG_SCHED_SMT
 	x86_topology[i++] = (struct sched_domain_topology_level){
-		cpu_smt_mask, x86_smt_flags, SD_INIT_NAME(SMT)
+		cpu_smt_mask, cpu_smt_flags, SD_INIT_NAME(SMT)
 	};
 #endif
 #ifdef CONFIG_SCHED_CLUSTER
-- 
2.43.0