[PATCH] hotplug CPU: clean up hotcpu_notifier() use

There was lots of #ifdef noise in the kernel due to hotcpu_notifier(fn,
prio) not correctly marking 'fn' as used in the !HOTPLUG_CPU case, and thus
generating compiler warnings of unused symbols, hence forcing people to add
#ifdefs.

the compiler can skip truly unused functions just fine:

    text    data     bss     dec     hex filename
 1624412  728710 3674856 6027978  5bfaca vmlinux.before
 1624412  728710 3674856 6027978  5bfaca vmlinux.after

[akpm@osdl.org: topology.c fix]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 0 insertions, 4 deletions

diff --git a/drivers/base/topology.c b/drivers/base/topology.c
index 3d12b85b0962..067a9e8bc377 100644
--- a/drivers/base/topology.c
+++ b/drivers/base/topology.c
@@ -108,7 +108,6 @@ static int __cpuinit topology_add_dev(unsigned int cpu)
         return rc;
 }
 
-#ifdef CONFIG_HOTPLUG_CPU
 static void __cpuinit topology_remove_dev(unsigned int cpu)
 {
         struct sys_device *sys_dev = get_cpu_sysdev(cpu);
@@ -136,7 +135,6 @@ static int __cpuinit topology_cpu_callback(struct notifier_block *nfb,
         }
         return rc ? NOTIFY_BAD : NOTIFY_OK;
 }
-#endif
 
 static int __cpuinit topology_sysfs_init(void)
 {
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 7a7c6e6dfe4f..47ab42db122a 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1537,7 +1537,6 @@ int cpufreq_update_policy(unsigned int cpu)
 }
 EXPORT_SYMBOL(cpufreq_update_policy);
 
-#ifdef CONFIG_HOTPLUG_CPU
 static int cpufreq_cpu_callback(struct notifier_block *nfb,
                                         unsigned long action, void *hcpu)
 {
@@ -1577,7 +1576,6 @@ static struct notifier_block __cpuinitdata cpufreq_cpu_notifier =
 {
     .notifier_call = cpufreq_cpu_callback,
 };
-#endif /* CONFIG_HOTPLUG_CPU */
 
 /*********************************************************************
  *               REGISTER / UNREGISTER CPUFREQ DRIVER                *