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authorIngo Molnar <mingo@elte.hu>2006-12-06 20:38:17 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-07 08:39:39 -0800
commit02316067852187b8bec781bec07410e91af79627 (patch)
tree856e3f4610c91a6548bf3bf5c70ecbc0b28a4145 /arch/x86_64
parenta38a44c1a93078fc5fadc4ac2df8dea4697069e2 (diff)
downloadlinux-02316067852187b8bec781bec07410e91af79627.tar.bz2
[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>
Diffstat (limited to 'arch/x86_64')
-rw-r--r--arch/x86_64/kernel/mce.c2
-rw-r--r--arch/x86_64/kernel/mce_amd.c4
-rw-r--r--arch/x86_64/kernel/vsyscall.c2
3 files changed, 2 insertions, 6 deletions
diff --git a/arch/x86_64/kernel/mce.c b/arch/x86_64/kernel/mce.c
index c7587fc39015..bc863c464a1f 100644
--- a/arch/x86_64/kernel/mce.c
+++ b/arch/x86_64/kernel/mce.c
@@ -641,7 +641,6 @@ static __cpuinit int mce_create_device(unsigned int cpu)
return err;
}
-#ifdef CONFIG_HOTPLUG_CPU
static void mce_remove_device(unsigned int cpu)
{
int i;
@@ -674,7 +673,6 @@ mce_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
static struct notifier_block mce_cpu_notifier = {
.notifier_call = mce_cpu_callback,
};
-#endif
static __init int mce_init_device(void)
{
diff --git a/arch/x86_64/kernel/mce_amd.c b/arch/x86_64/kernel/mce_amd.c
index 883fe747f64c..fa09debad4b7 100644
--- a/arch/x86_64/kernel/mce_amd.c
+++ b/arch/x86_64/kernel/mce_amd.c
@@ -551,7 +551,6 @@ out:
return err;
}
-#ifdef CONFIG_HOTPLUG_CPU
/*
* let's be hotplug friendly.
* in case of multiple core processors, the first core always takes ownership
@@ -594,12 +593,14 @@ static void threshold_remove_bank(unsigned int cpu, int bank)
sprintf(name, "threshold_bank%i", bank);
+#ifdef CONFIG_SMP
/* sibling symlink */
if (shared_bank[bank] && b->blocks->cpu != cpu) {
sysfs_remove_link(&per_cpu(device_mce, cpu).kobj, name);
per_cpu(threshold_banks, cpu)[bank] = NULL;
return;
}
+#endif
/* remove all sibling symlinks before unregistering */
for_each_cpu_mask(i, b->cpus) {
@@ -656,7 +657,6 @@ static int threshold_cpu_callback(struct notifier_block *nfb,
static struct notifier_block threshold_cpu_notifier = {
.notifier_call = threshold_cpu_callback,
};
-#endif /* CONFIG_HOTPLUG_CPU */
static __init int threshold_init_device(void)
{
diff --git a/arch/x86_64/kernel/vsyscall.c b/arch/x86_64/kernel/vsyscall.c
index 630036c06c75..3785e4954734 100644
--- a/arch/x86_64/kernel/vsyscall.c
+++ b/arch/x86_64/kernel/vsyscall.c
@@ -275,7 +275,6 @@ static void __cpuinit cpu_vsyscall_init(void *arg)
vsyscall_set_cpu(raw_smp_processor_id());
}
-#ifdef CONFIG_HOTPLUG_CPU
static int __cpuinit
cpu_vsyscall_notifier(struct notifier_block *n, unsigned long action, void *arg)
{
@@ -284,7 +283,6 @@ cpu_vsyscall_notifier(struct notifier_block *n, unsigned long action, void *arg)
smp_call_function_single(cpu, cpu_vsyscall_init, NULL, 0, 1);
return NOTIFY_DONE;
}
-#endif
static void __init map_vsyscall(void)
{