[PATCH] net: ena: fix gcc-4.8 missing-braces warning

[Arnd Bergmann]

Older compilers warn about initializers with incorrect curly
braces:

drivers/net/ethernet/amazon/ena/ena_netdev.c: In function 'ena_xdp_xmit_buff':
drivers/net/ethernet/amazon/ena/ena_netdev.c:311:2: error: expected ',' or ';' before 'struct'
  struct ena_tx_buffer *tx_info;
  ^~~~~~
drivers/net/ethernet/amazon/ena/ena_netdev.c:321:2: error: 'tx_info' undeclared (first use in this function)
  tx_info = &xdp_ring->tx_buffer_info[req_id];
  ^~~~~~~
drivers/net/ethernet/amazon/ena/ena_netdev.c:321:2: note: each undeclared identifier is reported only once for each function it appears in

Use the GNU empty initializer extension to avoid this.

Fixes: 31aa9857f173 ("net: ena: enable negotiating larger Rx ring size")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
 drivers/net/ethernet/amazon/ena/ena_netdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 2cc765df8da3..ad385652ca24 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -307,7 +307,7 @@ static int ena_xdp_xmit_buff(struct net_device *dev,
 			     struct ena_rx_buffer *rx_info)
 {
 	struct ena_adapter *adapter = netdev_priv(dev);
-	struct ena_com_tx_ctx ena_tx_ctx = {0};
+	struct ena_com_tx_ctx ena_tx_ctx = { };
 	struct ena_tx_buffer *tx_info;
 	struct ena_ring *xdp_ring;
 	u16 next_to_use, req_id;
-- 
2.26.0