linux-kernel - [tip: x86/apic] x86/apic: Mop up early_per

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Message-ID: <169159977585.27769.18374483975095792643.tip-bot2@tip-bot2>
Date:   Wed, 09 Aug 2023 16:49:35 -0000
From:   "tip-bot2 for Thomas Gleixner" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: x86/apic] x86/apic: Mop up early_per_cpu() abuse

The following commit has been merged into the x86/apic branch of tip:

Commit-ID:     94f775bda55918705399d4e05e868a5cd40e14fe
Gitweb:        https://git.kernel.org/tip/94f775bda55918705399d4e05e868a5cd40e14fe
Author:        Thomas Gleixner <tglx@...utronix.de>
AuthorDate:    Tue, 08 Aug 2023 15:03:54 -07:00
Committer:     Dave Hansen <dave.hansen@...ux.intel.com>
CommitterDate: Wed, 09 Aug 2023 08:10:11 -07:00

x86/apic: Mop up early_per_cpu() abuse

UV X2APIC uses the per CPU variable from:

  native_smp_prepare_cpus()
    uv_system_init()
      uv_system_init_hub()

which is long after the per CPU areas have been set up.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: Dave Hansen <dave.hansen@...ux.intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>
---
 arch/x86/kernel/apic/x2apic_uv_x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 0d812fd..8b14451 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -1843,7 +1843,7 @@ static void __init uv_system_init_hub(void)
 
 	/* Initialize per CPU info: */
 	for_each_possible_cpu(cpu) {
-		int apicid = early_per_cpu(x86_cpu_to_apicid, cpu);
+		int apicid = per_cpu(x86_cpu_to_apicid, cpu);
 		unsigned short bid;
 		unsigned short pnode;