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ARM: shmobile: r8a7779: Remove redundant cpu_disable implementation

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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 <sboyd@codeaurora.org>
Acked-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Stephen Boyd 2015-02-13 16:41:01 -08:00 committed by Simon Horman
parent bb04883b25
commit fd9454ab51
1 changed files with 0 additions and 7 deletions
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7
arch/arm/mach-shmobile/smp-r8a7779.c
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@ -124,19 +124,12 @@ static int r8a7779_cpu_kill(unsigned int cpu)
return 0; 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 */ #endif /* CONFIG_HOTPLUG_CPU */
struct smp_operations r8a7779_smp_ops __initdata = { struct smp_operations r8a7779_smp_ops __initdata = {
.smp_prepare_cpus = r8a7779_smp_prepare_cpus, .smp_prepare_cpus = r8a7779_smp_prepare_cpus,
.smp_boot_secondary = r8a7779_boot_secondary, .smp_boot_secondary = r8a7779_boot_secondary,
#ifdef CONFIG_HOTPLUG_CPU #ifdef CONFIG_HOTPLUG_CPU
.cpu_disable = r8a7779_cpu_disable,
.cpu_die = shmobile_smp_scu_cpu_die, .cpu_die = shmobile_smp_scu_cpu_die,
.cpu_kill = r8a7779_cpu_kill, .cpu_kill = r8a7779_cpu_kill,
#endif #endif