From: Mathieu Poirier <mathieu.poirier@linaro.org>
To: Tanmay Shah <tanmay.shah@amd.com>
Cc: andersson@kernel.org, linux-remoteproc@vger.kernel.org,
linux-kernel@vger.kernel.org, Tarak Reddy <tarak.reddy@amd.com>
Subject: Re: [PATCH v2 2/2] remoteproc: enhance rproc_put() for clusters
Date: Wed, 22 Mar 2023 10:05:37 -0600 [thread overview]
Message-ID: <20230322160537.GB2821487@p14s> (raw)
In-Reply-To: <20230322040933.924813-3-tanmay.shah@amd.com>
Hi Tanmay,
On Tue, Mar 21, 2023 at 09:09:36PM -0700, Tanmay Shah wrote:
> This patch enhances rproc_put() to support remoteproc clusters
> with multiple child nodes as in rproc_get_by_phandle().
>
> Signed-off-by: Tarak Reddy <tarak.reddy@amd.com>
> Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>
> ---
> drivers/remoteproc/remoteproc_core.c | 13 +++++++++++++
> 1 file changed, 13 insertions(+)
>
> diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
> index a3e7c8798381..e7e451012615 100644
> --- a/drivers/remoteproc/remoteproc_core.c
> +++ b/drivers/remoteproc/remoteproc_core.c
> @@ -2560,6 +2560,19 @@ EXPORT_SYMBOL(rproc_free);
> void rproc_put(struct rproc *rproc)
> {
> module_put(rproc->dev.parent->driver->owner);
There is something wrong here - this should have been removed.
> + struct platform_device *cluster_pdev;
> +
> + if (rproc->dev.parent) {
This condition is not needed, please remove.
> + if (rproc->dev.parent->driver) {
> + module_put(rproc->dev.parent->driver->owner);
> + } else {
> + cluster_pdev = of_find_device_by_node(rproc->dev.parent->of_node->parent);
> + if (cluster_pdev) {
> + module_put(cluster_pdev->dev.driver->owner);
> + put_device(&cluster_pdev->dev);
> + }
> + }
> + }
Some in-lined documentation, the way I did in patch 1/2 would be appreciated.
Otherwize I think the above enhancement make sense.
Thanks,
Mathieu
> put_device(&rproc->dev);
> }
> EXPORT_SYMBOL(rproc_put);
> --
> 2.25.1
>
next prev parent reply other threads:[~2023-03-22 16:05 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-22 4:09 [PATCH v2 0/2] remoteproc: get rproc devices for clusters Tanmay Shah
2023-03-22 4:09 ` [PATCH v2 1/2] remoteproc: Make rproc_get_by_phandle() work " Tanmay Shah
2023-03-22 4:09 ` [PATCH v2 2/2] remoteproc: enhance rproc_put() " Tanmay Shah
2023-03-22 6:20 ` kernel test robot
2023-03-22 7:31 ` kernel test robot
2023-03-22 11:52 ` Dan Carpenter
2023-03-22 16:05 ` Mathieu Poirier [this message]
2023-03-22 17:34 ` Tanmay Shah
2023-03-23 22:45 ` Mathieu Poirier
2023-03-22 14:12 ` [PATCH v2 0/2] remoteproc: get rproc devices " Bjorn Andersson
2023-03-22 16:11 ` Mathieu Poirier
2023-03-22 17:37 ` Tanmay Shah
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