netdev - [PATCH v2 net-next 01/15] net: enetc: simplify enetc_num_stack_tx

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Message-Id: <20230126125308.1199404-2-vladimir.oltean@nxp.com>
Date:   Thu, 26 Jan 2023 14:52:54 +0200
From:   Vladimir Oltean <vladimir.oltean@....com>
To:     netdev@...r.kernel.org
Cc:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Vinicius Costa Gomes <vinicius.gomes@...el.com>,
        Kurt Kanzenbach <kurt@...utronix.de>,
        Jacob Keller <jacob.e.keller@...el.com>
Subject: [PATCH v2 net-next 01/15] net: enetc: simplify enetc_num_stack_tx_queues()

We keep a pointer to the xdp_prog in the private netdev structure as
well; what's replicated per RX ring is done so just for more convenient
access from the NAPI poll procedure.

Simplify enetc_num_stack_tx_queues() by looking at priv->xdp_prog rather
than iterating through the information replicated per RX ring.

Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
---
v1->v2: patch is new

 drivers/net/ethernet/freescale/enetc/enetc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c
index 159ae740ba3c..3a80f259b17e 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc.c
@@ -28,11 +28,9 @@ EXPORT_SYMBOL_GPL(enetc_port_mac_wr);
 static int enetc_num_stack_tx_queues(struct enetc_ndev_priv *priv)
 {
 	int num_tx_rings = priv->num_tx_rings;
-	int i;
 
-	for (i = 0; i < priv->num_rx_rings; i++)
-		if (priv->rx_ring[i]->xdp.prog)
-			return num_tx_rings - num_possible_cpus();
+	if (priv->xdp_prog)
+		return num_tx_rings - num_possible_cpus();
 
 	return num_tx_rings;
 }
-- 
2.34.1