net: ena: Change return value of ena_calc_io_queue_size() to void

ena_calc_io_queue_size() always returns 0, therefore make it a
void function and update the calling function to stop checking
the return value.
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/amazon/ena/ena_netdev.c

@@ -4146,7 +4146,7 @@ static void ena_release_bars(struct ena_com_dev *ena_dev, struct pci_dev *pdev)
 }
 
 
-static int ena_calc_io_queue_size(struct ena_calc_queue_size_ctx *ctx)
+static void ena_calc_io_queue_size(struct ena_calc_queue_size_ctx *ctx)
 {
 	struct ena_admin_feature_llq_desc *llq = &ctx->get_feat_ctx->llq;
 	struct ena_com_dev *ena_dev = ctx->ena_dev;
@@ -4208,8 +4208,6 @@ static int ena_calc_io_queue_size(struct ena_calc_queue_size_ctx *ctx)
 	ctx->max_rx_queue_size = max_rx_queue_size;
 	ctx->tx_queue_size = tx_queue_size;
 	ctx->rx_queue_size = rx_queue_size;
-
-	return 0;
 }
 
 /* ena_probe - Device Initialization Routine
@@ -4320,8 +4318,8 @@ static int ena_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	ena_dev->intr_moder_rx_interval = ENA_INTR_INITIAL_RX_INTERVAL_USECS;
 	ena_dev->intr_delay_resolution = ENA_DEFAULT_INTR_DELAY_RESOLUTION;
 	max_num_io_queues = ena_calc_max_io_queue_num(pdev, ena_dev, &get_feat_ctx);
-	rc = ena_calc_io_queue_size(&calc_queue_ctx);
-	if (rc || !max_num_io_queues) {
+	ena_calc_io_queue_size(&calc_queue_ctx);
+	if (unlikely(!max_num_io_queues)) {
 		rc = -EFAULT;
 		goto err_device_destroy;
 	}