* Markus Elfring <[email protected]> [2019-07-06 16:05:17]: > From: Markus Elfring <[email protected]> > Date: Sat, 6 Jul 2019 16:00:13 +0200 > > Avoid an extra function call by using a ternary operator instead of > a conditional statement. > > This issue was detected by using the Coccinelle software. > > Signed-off-by: Markus Elfring <[email protected]> > --- > kernel/sched/topology.c | 6 +----- > 1 file changed, 1 insertion(+), 5 deletions(-) > > diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c > index f751ce0b783e..6190eb52c30a 100644 > --- a/kernel/sched/topology.c > +++ b/kernel/sched/topology.c > @@ -886,11 +886,7 @@ build_group_from_child_sched_domain(struct sched_domain > *sd, int cpu) > return NULL; > > sg_span = sched_group_span(sg); > - if (sd->child) > - cpumask_copy(sg_span, sched_domain_span(sd->child)); > - else > - cpumask_copy(sg_span, sched_domain_span(sd)); > - > + cpumask_copy(sg_span, sched_domain_span(sd->child ? sd->child : sd));
At runtime, Are we avoiding a function call? However I think we are avoiding a branch instead of a conditional, which may be beneficial. > atomic_inc(&sg->ref); > return sg; > } > -- > 2.22.0 > -- Thanks and Regards Srikar Dronamraju
