[PATCH 08/27] cpu: fix section mismatch warning in reference to register_cpu_notifier

From: Sam Ravnborg
Date: Sun Feb 17 2008 - 07:23:52 EST


Fix following warnings:
WARNING: vmlinux.o(.text+0xc60): Section mismatch in reference from the function kvm_init() to the function .cpuinit.text:register_cpu_notifier()
WARNING: vmlinux.o(.text+0x33869a): Section mismatch in reference from the function xfs_icsb_init_counters() to the function .cpuinit.text:register_cpu_notifier()
WARNING: vmlinux.o(.text+0x5556a1): Section mismatch in reference from the function acpi_processor_install_hotplug_notify() to the function .cpuinit.text:register_cpu_notifier()
WARNING: vmlinux.o(.text+0xfe6b28): Section mismatch in reference from the function cpufreq_register_driver() to the function .cpuinit.text:register_cpu_notifier()

register_cpu_notifier() are only really defined when HOTPLUG_CPU
is enabled. So references to the function are OK.
Annotate it with __ref so we do not get warnings from
callers and do not get warnings for the functions/data
used by register_cpu_notifier().

Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: Gautham R Shenoy <ego@xxxxxxxxxx>
---
kernel/cpu.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/cpu.c b/kernel/cpu.c
index 74827bf..329fdcb 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -136,7 +136,7 @@ static void cpu_hotplug_done(void)
mutex_unlock(&cpu_hotplug.lock);
}
/* Need to know about CPUs going up/down? */
-int __cpuinit register_cpu_notifier(struct notifier_block *nb)
+int __ref register_cpu_notifier(struct notifier_block *nb)
{
int ret;
cpu_maps_update_begin();
--
1.5.4.rc3.14.g44397

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