Re: [PATCH V3] remoteproc: imx_rproc: Ignore create mem entry for resource table

From: Mathieu Poirier
Date: Thu Apr 14 2022 - 12:39:28 EST


On Thu, Mar 31, 2022 at 04:40:07PM +0800, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@xxxxxxx>
>
> Resource table is used by Linux to get information pubished by

s/pubished/published

> remote processor. It should be not be used for memory allocation, so
> not create rproc mem entry.
>
> Fixes: b29b4249f8f0 ("remoteproc: imx_rproc: add i.MX specific parse fw hook")
> Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
> ---
>
> V3:
> Update commit log
> Update Fixes tag
>
> V2:
> Add Fixes tag
> Separate the patch from https://patchwork.kernel.org/project/linux-remoteproc/patch/20220111033333.403448-7-peng.fan@xxxxxxxxxxx/
> Address typo
>
> drivers/remoteproc/imx_rproc.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
> index 7a096f1891e6..f2bfc9077c19 100644
> --- a/drivers/remoteproc/imx_rproc.c
> +++ b/drivers/remoteproc/imx_rproc.c
> @@ -423,6 +423,9 @@ static int imx_rproc_prepare(struct rproc *rproc)
> if (!strcmp(it.node->name, "vdev0buffer"))
> continue;
>
> + if (!strncmp(it.node->name, "rsc-table", strlen("rsc-table")))
> + continue;
> +

Any reason the handling of vdev0buffer is using strcmp() and the resource table
strncmp()?

Thanks,
Mathieu

> rmem = of_reserved_mem_lookup(it.node);
> if (!rmem) {
> dev_err(priv->dev, "unable to acquire memory-region\n");
> --
> 2.25.1
>