[PATCH net] dpaa_eth: fix the access method for the dpaa_napi_portal

-----Original Message-----
From: Camelia Alexandra Groza <redacted>
Sent: 18 February 2021 20:21
To: kuba@kernel.org; davem@davemloft.net; s.hauer@pengutronix.de
Cc: brouer@redhat.com; Madalin Bucur (OSS) <redacted>;
netdev@vger.kernel.org; Camelia Alexandra Groza [off-list ref]
Subject: [PATCH net] dpaa_eth: fix the access method for the
dpaa_napi_portal

The current use of container_of is flawed and unnecessary. Obtain
the dpaa_napi_portal reference from the private percpu data instead.

Fixes: a1e031ffb422 ("dpaa_eth: add XDP_REDIRECT support")
Reported-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Camelia Groza <redacted>
---
 drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c

b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
index 6faa20bed488..9905caeaeee3 100644

--- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
+++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c

@@ -2672,7 +2672,6 @@ static enum qman_cb_dqrr_result

rx_default_dqrr(struct qman_portal *portal,
 	u32 hash;
 	u64 ns;

-	np = container_of(&portal, struct dpaa_napi_portal, p);
 	dpaa_fq = container_of(fq, struct dpaa_fq, fq_base);
 	fd_status = be32_to_cpu(fd->status);
 	fd_format = qm_fd_get_format(fd);

@@ -2687,6 +2686,7 @@ static enum qman_cb_dqrr_result

rx_default_dqrr(struct qman_portal *portal,

 	percpu_priv = this_cpu_ptr(priv->percpu_priv);
 	percpu_stats = &percpu_priv->stats;
+	np = &percpu_priv->np;

 	if (unlikely(dpaa_eth_napi_schedule(percpu_priv, portal,
sched_napi)))
 		return qman_cb_dqrr_stop;
--
2.17.1