On Tue, 6 Apr 2010 17:22:38 -0400 Alexandre Bounine <aboun...@tundra.com> wrote:
>
> From: Alexandre Bounine <alexandre.boun...@idt.com>
>
> Add RapidIO Port-Write message handling in the context
> of Error Management Extensions Specification Rev.1.3.
>
> ...
>
> +static struct rio_dev *rio_get_comptag(u32 comp_tag, struct rio_dev *from)
> +{
> + struct list_head *n;
> + struct rio_dev *rdev;
> +
> + WARN_ON(in_interrupt());
The check should be unneeded - lockdep will warn about this.
> + spin_lock(&rio_global_list_lock);
> + n = from ? from->global_list.next : rio_devices.next;
> +
> + while (n && (n != &rio_devices)) {
> + rdev = rio_dev_g(n);
> + if (rdev->comp_tag == comp_tag)
> + goto exit;
> + n = n->next;
> + }
> + rdev = NULL;
> +exit:
> + spin_unlock(&rio_global_list_lock);
> + return rdev;
> +}
> +
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
