[PATCH] net: ena: initialize dim_sample

[Tom Rix]

clang static analysis reports this problem
drivers/net/ethernet/amazon/ena/ena_netdev.c:1821:2: warning: Passed-by-value struct
  argument contains uninitialized data (e.g., field: 'comp_ctr') [core.CallAndMessage]
        net_dim(&ena_napi->dim, dim_sample);
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

net_dim can call dim_calc_stats() which uses the comp_ctr element,
so it must be initialized.

Fixes: 282faf61a053 ("net: ena: switch to dim algorithm for rx adaptive interrupt moderation")
Signed-off-by: Tom Rix <trix@xxxxxxxxxx>
---
 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 e8ad5ea31aff..938184465eae 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -1805,7 +1805,7 @@ static void ena_dim_work(struct work_struct *w)
 
 static void ena_adjust_adaptive_rx_intr_moderation(struct ena_napi *ena_napi)
 {
-	struct dim_sample dim_sample;
+	struct dim_sample dim_sample = {};
 	struct ena_ring *rx_ring = ena_napi->rx_ring;
 
 	if (!rx_ring->per_napi_packets)
-- 
2.27.0