From: Amir Vadai <redacted>
Date: Sun, 10 May 2015 12:38:57 +0300

+int mlx5_rename_eq(struct mlx5_core_dev *dev, int eq_ix, char *name)
+{
+	struct mlx5_priv *priv = &dev->priv;
+	struct mlx5_eq_table *table = &priv->eq_table;
+	struct mlx5_eq *eq;
+	int err = -ENOENT;
+
+	spin_lock(&table->lock);
+	list_for_each_entry(eq, &table->comp_eqs_list, list) {
+		if (eq->index == eq_ix) {
+			snprintf(priv->irq_info[eq_ix].name, MLX5_MAX_IRQ_NAME,
+				 "%s-%d", name, eq_ix);
+			err = 0;
+			break;
+		}
+	}
+	spin_unlock(&table->lock);
+
+	return err;
+}

You have to be very careful with this.

If you change these names after the request_irq() call(s), the new name string
will not propagate to /proc/interrupts output etc.

Looking at your later patches, this seems to be invoked very late in
mlx5e_open_locked(), so I am concerned.