GitHub-Mirror/linux-bl808
2
0
Fork 0
mirror of https://github.com/Fishwaldo/linux-bl808.git synced 2025-06-17 20:25:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

[PATCH] make smp_prepare_cpu to a weak function

Browse source 
I really wish smp_prepare_cpu() would disappear eventually.  In the interim
this is ideally a weak function, so we dont end up changing several places
to define this dummy in headers.

Today since the dummy declaration is done only in drivers/base/cpu.c but
the function is called in kernel/power/smp.c i get undefined reference in
my cpu hotplug code for x86_64 under development.

Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ashok Raj 2005-06-25 14:54:57 -07:00 • committed by Linus Torvalds
parent e1367daf3e
commit 52a119feaa
3 changed files with 6 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

1
include/linux/cpu.h
View file

@ -69,6 +69,7 @@ extern struct semaphore cpucontrol;
register_cpu_notifier(&fn##_nb); \
}
int cpu_down(unsigned int cpu);
extern int __attribute__((weak)) smp_prepare_cpu(int cpu);
#define cpu_is_offline(cpu) unlikely(!cpu_online(cpu))
#else
#define lock_cpu_hotplug() do { } while (0)