From fd9454ab51fa92f43ae5b7a71c42f2ee8417c2a2 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Fri, 13 Feb 2015 16:41:01 -0800 Subject: [PATCH] ARM: shmobile: r8a7779: Remove redundant cpu_disable implementation By default only the non-boot CPUs can be hotplugged if the smp_operations structure doesn't have the cpu_disable function pointer set. r8a7779_cpu_disable() implements the same logic, only non-boot CPUs can be hotplugged, so it's redundant to override the default behavior. Signed-off-by: Stephen Boyd Acked-by: Magnus Damm Signed-off-by: Simon Horman --- arch/arm/mach-shmobile/smp-r8a7779.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/arch/arm/mach-shmobile/smp-r8a7779.c b/arch/arm/mach-shmobile/smp-r8a7779.c index 9fc280e24ef4..01f792fcb220 100644 --- a/arch/arm/mach-shmobile/smp-r8a7779.c +++ b/arch/arm/mach-shmobile/smp-r8a7779.c @@ -124,19 +124,12 @@ static int r8a7779_cpu_kill(unsigned int cpu) return 0; } - -static int r8a7779_cpu_disable(unsigned int cpu) -{ - /* only CPU1->3 have power domains, do not allow hotplug of CPU0 */ - return cpu == 0 ? -EPERM : 0; -} #endif /* CONFIG_HOTPLUG_CPU */ struct smp_operations r8a7779_smp_ops __initdata = { .smp_prepare_cpus = r8a7779_smp_prepare_cpus, .smp_boot_secondary = r8a7779_boot_secondary, #ifdef CONFIG_HOTPLUG_CPU - .cpu_disable = r8a7779_cpu_disable, .cpu_die = shmobile_smp_scu_cpu_die, .cpu_kill = r8a7779_cpu_kill, #endif -- 2.39.5