[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>
This commit is contained in:
Ingo Molnar
2006-12-06 20:38:17 -08:00
committed by Linus Torvalds
parent a38a44c1a9
commit 0231606785
25 changed files with 8 additions and 56 deletions

View File

@@ -340,7 +340,6 @@ static void __devinit flow_cache_cpu_prepare(int cpu)
tasklet_init(tasklet, flow_cache_flush_tasklet, 0);
}
#ifdef CONFIG_HOTPLUG_CPU
static int flow_cache_cpu(struct notifier_block *nfb,
unsigned long action,
void *hcpu)
@@ -349,7 +348,6 @@ static int flow_cache_cpu(struct notifier_block *nfb,
__flow_cache_shrink((unsigned long)hcpu, 0);
return NOTIFY_OK;
}
#endif /* CONFIG_HOTPLUG_CPU */
static int __init flow_cache_init(void)
{