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* [PATCH net] dpaa_eth: fix the access method for the dpaa_napi_portal
@ 2021-02-18 18:21 Camelia Groza
  2021-02-19 10:14 ` Madalin Bucur (OSS)
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Camelia Groza @ 2021-02-18 18:21 UTC (permalink / raw)
  To: kuba, davem, s.hauer; +Cc: brouer, madalin.bucur, netdev, Camelia Groza

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 <camelia.groza@nxp.com>
---
 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


^ permalink raw reply	[flat|nested] 4+ messages in thread

* RE: [PATCH net] dpaa_eth: fix the access method for the dpaa_napi_portal
  2021-02-18 18:21 [PATCH net] dpaa_eth: fix the access method for the dpaa_napi_portal Camelia Groza
@ 2021-02-19 10:14 ` Madalin Bucur (OSS)
  2021-02-19 13:40 ` Jesper Dangaard Brouer
  2021-02-23  2:50 ` patchwork-bot+netdevbpf
  2 siblings, 0 replies; 4+ messages in thread
From: Madalin Bucur (OSS) @ 2021-02-19 10:14 UTC (permalink / raw)
  To: Camelia Alexandra Groza, kuba, davem, s.hauer
  Cc: brouer, Madalin Bucur (OSS), netdev

> -----Original Message-----
> From: Camelia Alexandra Groza <camelia.groza@nxp.com>
> Sent: 18 February 2021 20:21
> To: kuba@kernel.org; davem@davemloft.net; s.hauer@pengutronix.de
> Cc: brouer@redhat.com; Madalin Bucur (OSS) <madalin.bucur@oss.nxp.com>;
> netdev@vger.kernel.org; Camelia Alexandra Groza <camelia.groza@nxp.com>
> 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 <camelia.groza@nxp.com>
> ---
>  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

Acked-by: Madalin Bucur <madalin.bucur@oss.nxp.com>

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH net] dpaa_eth: fix the access method for the dpaa_napi_portal
  2021-02-18 18:21 [PATCH net] dpaa_eth: fix the access method for the dpaa_napi_portal Camelia Groza
  2021-02-19 10:14 ` Madalin Bucur (OSS)
@ 2021-02-19 13:40 ` Jesper Dangaard Brouer
  2021-02-23  2:50 ` patchwork-bot+netdevbpf
  2 siblings, 0 replies; 4+ messages in thread
From: Jesper Dangaard Brouer @ 2021-02-19 13:40 UTC (permalink / raw)
  To: Camelia Groza; +Cc: kuba, davem, s.hauer, madalin.bucur, netdev, brouer

On Thu, 18 Feb 2021 20:21:06 +0200
Camelia Groza <camelia.groza@nxp.com> wrote:

> 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 <camelia.groza@nxp.com>
> ---
>  drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

LGTM

Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>

-- 
Best regards,
  Jesper Dangaard Brouer
  MSc.CS, Principal Kernel Engineer at Red Hat
  LinkedIn: http://www.linkedin.com/in/brouer


^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH net] dpaa_eth: fix the access method for the dpaa_napi_portal
  2021-02-18 18:21 [PATCH net] dpaa_eth: fix the access method for the dpaa_napi_portal Camelia Groza
  2021-02-19 10:14 ` Madalin Bucur (OSS)
  2021-02-19 13:40 ` Jesper Dangaard Brouer
@ 2021-02-23  2:50 ` patchwork-bot+netdevbpf
  2 siblings, 0 replies; 4+ messages in thread
From: patchwork-bot+netdevbpf @ 2021-02-23  2:50 UTC (permalink / raw)
  To: Camelia Groza; +Cc: kuba, davem, s.hauer, brouer, madalin.bucur, netdev

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Thu, 18 Feb 2021 20:21:06 +0200 you wrote:
> 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 <camelia.groza@nxp.com>
> 
> [...]

Here is the summary with links:
  - [net] dpaa_eth: fix the access method for the dpaa_napi_portal
    https://git.kernel.org/netdev/net/c/433dfc99aa3e

You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html



^ permalink raw reply	[flat|nested] 4+ messages in thread

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Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-02-18 18:21 [PATCH net] dpaa_eth: fix the access method for the dpaa_napi_portal Camelia Groza
2021-02-19 10:14 ` Madalin Bucur (OSS)
2021-02-19 13:40 ` Jesper Dangaard Brouer
2021-02-23  2:50 ` patchwork-bot+netdevbpf

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