[PATCH] ARM: hisi: fix hip04 build without HOTPLUG_CPU

[arnd@arndb.de (Arnd Bergmann)]

The hip04 smp implementation provides the hotplug operations (cpu_die
and cpu_kill) unconditionally at the moment, which leads to a build
error when HOTPLUG_CPU is disabled:

mach-hisi/platmcpm.c:242:13: note: (near initialization for 'hip04_smp_ops')
mach-hisi/platmcpm.c:242:2: error: unknown field 'cpu_die' specified in initializer
mach-hisi/platmcpm.c:243:2: error: unknown field 'cpu_kill' specified in initializer

This uses an #ifdef to remove the code from the build when that
option is not set.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 905cdf9dda5d ("ARM: hisi/hip04: remove the MCPM overhead")
---
The patch causing this is currently part of rmk's devel-stable branch.

diff --git a/arch/arm/mach-hisi/platmcpm.c b/arch/arm/mach-hisi/platmcpm.c
index 880cbfa9c343..b5f8f5ffda79 100644
--- a/arch/arm/mach-hisi/platmcpm.c
+++ b/arch/arm/mach-hisi/platmcpm.c
@@ -152,6 +152,7 @@ out:
 	return 0;
 }
 
+#ifdef CONFIG_HOTPLUG_CPU
 static void hip04_cpu_die(unsigned int l_cpu)
 {
 	unsigned int mpidr, cpu, cluster;
@@ -236,11 +237,14 @@ err:
 	spin_unlock_irq(&boot_lock);
 	return 0;
 }
+#endif
 
 static struct smp_operations __initdata hip04_smp_ops = {
 	.smp_boot_secondary	= hip04_boot_secondary,
+#ifdef CONFIG_HOTPLUG_CPU
 	.cpu_die		= hip04_cpu_die,
 	.cpu_kill		= hip04_cpu_kill,
+#endif
 };
 
 static bool __init hip04_cpu_table_init(void)