On Wed, 18 Mar 2009 16:40:01 -0600 Alex Chiang <achiang@xxxxxx> wrote:
> +#ifdef CONFIG_HOTPLUG
> +static DEFINE_MUTEX(pci_remove_rescan_mutex);
> +static ssize_t bus_rescan_store(struct bus_type *bus, const char *buf,
> + size_t count)
> +{
> + unsigned long val;
> + struct pci_bus *b = NULL;
> +
> + if (strict_strtoul(buf, 0, &val) < 0)
> + return -EINVAL;
> +
> + if (!capable(CAP_SYS_ADMIN))
> + return -EPERM;
> +
> + if (val) {
> + mutex_lock(&pci_remove_rescan_mutex);
> + while ((b = pci_find_next_bus(b)) != NULL)
> + pci_rescan_bus(b);
> + mutex_unlock(&pci_remove_rescan_mutex);
> + }
> + return count;
> +}
> +
> +struct bus_attribute pci_bus_attrs[] = {
> + __ATTR(rescan, S_IWUSR, NULL, bus_rescan_store),
> + __ATTR_NULL
> +};
> +#endif
Why CONFIG_HOTPLUG rather than CONFIG_HOTPLUG_PCI (or similar)?
--
To unsubscribe from this list: send the line "unsubscribe linux-pci" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
