Messages in this thread | | | Date | Thu, 27 Jun 2013 10:18:45 +0200 | From | Heiko Carstens <> | Subject | Re: [PATCH v2] arch: s390: kernel: scan all present cpu forcely. |
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On Thu, Jun 27, 2013 at 10:43:02AM +0800, Chen Gang wrote: > 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);
I have no idea how the patch description is supposed to correlate with your patch. However your patch doesn't make sense anyway. We have initcall_debug for .. initcall debugging, which your patch would break in addition, since this function would now return 0 instead of the return code.
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