Re: [PATCH] mailbox: zynqmp: setup IPI for each valid child node

[Michal Simek <michal.simek@amd.com>]

On 11/12/24 18:06, Tanmay Shah wrote:
> As per zynqmp-ipi bindings, zynqmp IPI node can have multiple child nodes.
> Current IPI setup function is set only for first child node. If IPI node
> has multiple child nodes in the device-tree, then IPI setup fails for
> child nodes other than first child node. In such case kernel will crash.
> Fix this crash by registering IPI setup function for each available child
> node.
> 
> Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>
> ---
>   drivers/mailbox/zynqmp-ipi-mailbox.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/mailbox/zynqmp-ipi-mailbox.c b/drivers/mailbox/zynqmp-ipi-mailbox.c
> index 521d08b9ab47..815e0492f029 100644
> --- a/drivers/mailbox/zynqmp-ipi-mailbox.c
> +++ b/drivers/mailbox/zynqmp-ipi-mailbox.c
> @@ -940,10 +940,10 @@ static int zynqmp_ipi_probe(struct platform_device *pdev)
>   	pdata->num_mboxes = num_mboxes;
>   
>   	mbox = pdata->ipi_mboxes;
> -	mbox->setup_ipi_fn = ipi_fn;
> -
>   	for_each_available_child_of_node(np, nc) {
>   		mbox->pdata = pdata;
> +		mbox->setup_ipi_fn = ipi_fn;
> +
>   		ret = zynqmp_ipi_mbox_probe(mbox, nc);
>   		if (ret) {
>   			of_node_put(nc);
> 
> base-commit: 28955f4fa2823e39f1ecfb3a37a364563527afbc

I think you should add Fixed tag and also cc stable@kernel.org

With that fixed feel free to add
Reviewed-by: Michal Simek <michal.simek@amd.com>

Thanks,
Michal