From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Wed, 20 Aug 2014 19:49:54 +0000 (+0100)
Subject: ARM: 8131/1: arm/smp: Absorb boot_secondary()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=084bb5bc00c19ec32b45f44d11ba6a0ca2514ec3;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

ARM: 8131/1: arm/smp: Absorb boot_secondary()

After becoming a mandatory function, boot_secondary() is no longer used
outside arch/arm/kernel/smp.c. Hence remove its public prototype, and,
as suggested by Arnd, let it be absorbed by its single caller.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h
index 2ec765c39ab4..18f5a554134f 100644
--- a/arch/arm/include/asm/smp.h
+++ b/arch/arm/include/asm/smp.h
@@ -48,12 +48,6 @@ extern void smp_init_cpus(void);
  */
 extern void set_smp_cross_call(void (*)(const struct cpumask *, unsigned int));
 
-/*
- * Boot a secondary CPU, and assign it the specified idle task.
- * This also gives us the initial stack to use for this CPU.
- */
-extern int boot_secondary(unsigned int cpu, struct task_struct *);
-
 /*
  * Called from platform specific assembly code, this is the
  * secondary CPU entry point.
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 9388a3d479e1..d19aea4385d9 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -95,6 +95,9 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle)
 {
 	int ret;
 
+	if (!smp_ops.smp_boot_secondary)
+		return -ENOSYS;
+
 	/*
 	 * We need to tell the secondary core where to find
 	 * its stack and the page tables.
@@ -113,7 +116,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle)
 	/*
 	 * Now bring the CPU into our world.
 	 */
-	ret = boot_secondary(cpu, idle);
+	ret = smp_ops.smp_boot_secondary(cpu, idle);
 	if (ret == 0) {
 		/*
 		 * CPU was successfully started, wait for it
@@ -142,13 +145,6 @@ void __init smp_init_cpus(void)
 		smp_ops.smp_init_cpus();
 }
 
-int boot_secondary(unsigned int cpu, struct task_struct *idle)
-{
-	if (smp_ops.smp_boot_secondary)
-		return smp_ops.smp_boot_secondary(cpu, idle);
-	return -ENOSYS;
-}
-
 int platform_can_cpu_hotplug(void)
 {
 #ifdef CONFIG_HOTPLUG_CPU