Re: [PATCH] genirq/affinity: fix node generation from cpumask

[Thomas Gleixner]

On Thu, 15 Dec 2016, Gavin Shan wrote:
> > static int get_nodes_in_cpumask(const struct cpumask *mask, nodemask_t *nodemsk)
> > {
> >-	int n, nodes;
> >+	int n, nodes = 0;
> >
> > 	/* Calculate the number of nodes in the supplied affinity mask */
> >-	for (n = 0, nodes = 0; n < num_online_nodes(); n++) {
> >+	for_each_online_node(n)
> > 		if (cpumask_intersects(mask, cpumask_of_node(n))) {
> > 			node_set(n, *nodemsk);
> > 			nodes++;
> > 		}
> >-	}
> >+
> 
> It'd better to keep the brackets so that we needn't add them when adding
> more code into the block next time.

Removing the brackets is outright wrong. See:
  https://marc.info/?l=linux-kernel&m=147351236615103

I'll fix that up when applying the patch.

Thanks,

	tglx