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linux-sg2042
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cpu: fix section mismatch warnings in *cpu_down 

Fix following warnings:
WARNING: vmlinux.o(.text+0x75c8d): Section mismatch in reference from the function take_cpu_down() to the variable .cpuinit.data:cpu_chain
WARNING: vmlinux.o(.text+0x75d2a): Section mismatch in reference from the function _cpu_down() to the variable .cpuinit.data:cpu_chain
WARNING: vmlinux.o(.text+0x75d4d): Section mismatch in reference from the function _cpu_down() to the variable .cpuinit.data:cpu_chain
WARNING: vmlinux.o(.text+0x75de4): Section mismatch in reference from the function _cpu_down() to the variable .cpuinit.data:cpu_chain
WARNING: vmlinux.o(.text+0x75e33): Section mismatch in reference from the function _cpu_down() to the variable .cpuinit.data:cpu_chain

cpu_down is only used from code surrounded by HOTPLUG_CPU so any references to
__cpuinit is OK.

Add a few __ref to tech modpost to ignore the references.

This is just papering over the fact that the cpu hotplug code is fragile with
respect to use of HOTPLUG_CPU and in many cases rely on __cpuinit to get rid
of code when HOTPLUG_CPU is not enabled.  For now this is the least invasive
change.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Sam Ravnborg 2008-04-29 00:58:50 -07:00 committed by Linus Torvalds
parent 9647155ffb
commit 514a20a5da
1 changed files with 3 additions and 3 deletions
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6
kernel/cpu.c
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@ -180,7 +180,7 @@ struct take_cpu_down_param {
};
/* Take this CPU down. */
static int take_cpu_down(void *_param)
static int __ref take_cpu_down(void *_param)
{
struct take_cpu_down_param *param = _param;
int err;
@ -199,7 +199,7 @@ static int take_cpu_down(void *_param)
}
/* Requires cpu_add_remove_lock to be held */
static int _cpu_down(unsigned int cpu, int tasks_frozen)
static int __ref _cpu_down(unsigned int cpu, int tasks_frozen)
{
int err, nr_calls = 0;
struct task_struct *p;
@ -274,7 +274,7 @@ out_release:
return err;
}
int cpu_down(unsigned int cpu)
int __ref cpu_down(unsigned int cpu)
{
int err = 0;