linux-kernel - [patch v3 02/36] cpu/hotplug: Mark arch_disable_smp_support() and bringup_nonboot_cpus() _

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Message-ID: <20230508185217.347553670@linutronix.de>
Date:   Mon,  8 May 2023 21:43:29 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     x86@...nel.org, David Woodhouse <dwmw2@...radead.org>,
        Andrew Cooper <andrew.cooper3@...rix.com>,
        Brian Gerst <brgerst@...il.com>,
        Arjan van de Veen <arjan@...ux.intel.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Paul McKenney <paulmck@...nel.org>,
        Tom Lendacky <thomas.lendacky@....com>,
        Sean Christopherson <seanjc@...gle.com>,
        Oleksandr Natalenko <oleksandr@...alenko.name>,
        Paul Menzel <pmenzel@...gen.mpg.de>,
        "Guilherme G. Piccoli" <gpiccoli@...lia.com>,
        Piotr Gorski <lucjan.lucjanov@...il.com>,
        Usama Arif <usama.arif@...edance.com>,
        Juergen Gross <jgross@...e.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        xen-devel@...ts.xenproject.org,
        Russell King <linux@...linux.org.uk>,
        Arnd Bergmann <arnd@...db.de>,
        linux-arm-kernel@...ts.infradead.org,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Guo Ren <guoren@...nel.org>,
        linux-csky@...r.kernel.org,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        linux-mips@...r.kernel.org,
        "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>,
        Helge Deller <deller@....de>, linux-parisc@...r.kernel.org,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        linux-riscv@...ts.infradead.org,
        Mark Rutland <mark.rutland@....com>,
        Sabin Rapan <sabrapan@...zon.com>,
        "Michael Kelley (LINUX)" <mikelley@...rosoft.com>
Subject: [patch v3 02/36] cpu/hotplug: Mark arch_disable_smp_support() and
 bringup_nonboot_cpus() __init

From: Thomas Gleixner <tglx@...utronix.de>

No point in keeping them around.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Tested-by: Michael Kelley <mikelley@...rosoft.com>


---
 arch/x86/kernel/smpboot.c |    4 ++--
 kernel/cpu.c              |    2 +-
 kernel/smp.c              |    2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)
---

--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1269,9 +1269,9 @@ int native_cpu_up(unsigned int cpu, stru
 }
 
 /**
- * arch_disable_smp_support() - disables SMP support for x86 at runtime
+ * arch_disable_smp_support() - Disables SMP support for x86 at boottime
  */
-void arch_disable_smp_support(void)
+void __init arch_disable_smp_support(void)
 {
 	disable_ioapic_support();
 }
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -1502,7 +1502,7 @@ int bringup_hibernate_cpu(unsigned int s
 	return 0;
 }
 
-void bringup_nonboot_cpus(unsigned int setup_max_cpus)
+void __init bringup_nonboot_cpus(unsigned int setup_max_cpus)
 {
 	unsigned int cpu;
 
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -892,7 +892,7 @@ EXPORT_SYMBOL(setup_max_cpus);
  * SMP mode to <NUM>.
  */
 
-void __weak arch_disable_smp_support(void) { }
+void __weak __init arch_disable_smp_support(void) { }
 
 static int __init nosmp(char *str)
 {