On Wed, 10 Aug 2022 15:57:33 +0300 Tariq Toukan wrote:

quoted

+		for_each_cpu(cpu, mask) {
+			cpus[i] = cpu;
+			if (++i == ncomp_eqs)
+				goto spread_done;
+		}
+	}
+spread_done:
+	rcu_read_unlock();
  	ret = mlx5_irqs_request_vectors(dev, cpus, ncomp_eqs, table->comp_irqs);
  	kfree(cpus);
  	if (ret < 0)  

This logic is typical. Other drivers would also want to use it.
It must be introduced as a service/API function, if not by the sched 
topology, then at least by the networking subsystem.
Jakub, WDYT?

Agreed, no preference where the helper would live tho.