From: Camelia Groza <camelia.groza@xxxxxxx>
[ Upstream commit 433dfc99aa3e0acbf655b961d98eb690162f758f ]
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@xxxxxxxxxxxxxx>
Signed-off-by: Camelia Groza <camelia.groza@xxxxxxx>
Acked-by: Madalin Bucur <madalin.bucur@xxxxxxxxxxx>
Acked-by: Jesper Dangaard Brouer <brouer@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20210218182106.22613-1-camelia.groza@xxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 6faa20bed4885..9905caeaeee3e 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;
--
2.27.0
