[PATCH v3 08/18] net/bnxt: refactor Rx doorbell during Rx flush

[Ajit Khaparde]

Ring the Rx doorbell during the Rx ring flush processing only if
there is a valid completion.

Signed-off-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
Reviewed-by: Damodharam Ammepalli <damodharam.ammepalli at broadcom.com>
---
 drivers/net/bnxt/bnxt_rxr.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/net/bnxt/bnxt_rxr.c b/drivers/net/bnxt/bnxt_rxr.c
index c5c9f9e6e6..d0706874a6 100644
--- a/drivers/net/bnxt/bnxt_rxr.c
+++ b/drivers/net/bnxt/bnxt_rxr.c
@@ -1713,10 +1713,11 @@ int bnxt_flush_rx_cmp(struct bnxt_cp_ring_info *cpr)
 		nb_rx++;
 	} while (nb_rx < ring_mask);
 
-	cpr->cp_raw_cons = raw_cons;
-
-	/* Ring the completion queue doorbell. */
-	bnxt_db_cq(cpr);
+	if (nb_rx) {
+		cpr->cp_raw_cons = raw_cons;
+		/* Ring the completion queue doorbell. */
+		bnxt_db_cq(cpr);
+	}
 
 	return 0;
 }
-- 
2.39.2 (Apple Git-143)

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