Re: [PATCH v4 05/11] media: rockchip: add a driver for the rockchip camera interface

[Markus Elfring]

…
> +++ b/drivers/media/platform/rockchip/rkcif/rkcif-stream.c
> @@ -0,0 +1,622 @@
…
> +static void rkcif_stream_push_buffer(struct rkcif_stream *stream,
> +				     struct rkcif_buffer *buffer)
> +{
> +	unsigned long lock_flags;
> +
> +	spin_lock_irqsave(&stream->driver_queue_lock, lock_flags);
> +	list_add_tail(&buffer->queue, &stream->driver_queue);
> +	spin_unlock_irqrestore(&stream->driver_queue_lock, lock_flags);
> +}
…

Under which circumstances would you become interested to apply a statement
like “guard(spinlock_irqsave)(&stream->driver_queue_lock);”?
https://elixir.bootlin.com/linux/v6.14-rc3/source/include/linux/spinlock.h#L572

Regards,
Markus