[PATCH v2] arch: s390: kernel: scan all present cpu forcely.

[Chen Gang <gang.chen@asianux.com>]

The architectures which may support 'hotpluggable', can scan all cpus
during subsys_initcall().  the upper caller will skip the return value.

It also can initialize hotpluggable flag of all cpus in time, no matter
whether any cpus fail or not.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
---
 arch/s390/kernel/smp.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index d386c4e..75a118f 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -1064,8 +1064,9 @@ static int __init s390_smp_init(void)
 #endif
 	for_each_present_cpu(cpu) {
 		rc = smp_add_present_cpu(cpu);
-		if (rc)
-			return rc;
+		if (unlikely(rc))
+			printk(KERN_WARNING "%s: add cpu %d failed (%d)\n",
+			       __func__, cpu, rc);
 	}
 	return 0;
 }
-- 
1.7.7.6