Commit 6f3badea authored by Mika Westerberg's avatar Mika Westerberg
Browse files

thunderbolt: Hide authorized attribute if router does not support PCIe tunnels 



With USB4 devices PCIe tunneling is optional so for device routers
without PCIe upstream adapter it does not make much sense to expose the
authorized attribute. For this reason hide it if PCIe tunneling is not
supported by the device router.

Signed-off-by: default avatarMika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 2f608ba1

drivers/thunderbolt/switch.c

+14 −1
Original line number Diff line number Diff line
@@ -1746,6 +1746,18 @@ static struct attribute *switch_attrs[] = { 
	NULL,

};



static bool has_port(const struct tb_switch *sw, enum tb_port_type type)

{

	const struct tb_port *port;



	tb_switch_for_each_port(sw, port) {

		if (!port->disabled && port->config.type == type)

			return true;

	}



	return false;

}



static umode_t switch_attr_is_visible(struct kobject *kobj,

				      struct attribute *attr, int n)

{
@@ -1754,7 +1766,8 @@ static umode_t switch_attr_is_visible(struct kobject *kobj, 


	if (attr == &dev_attr_authorized.attr) {

		if (sw->tb->security_level == TB_SECURITY_NOPCIE ||

		    sw->tb->security_level == TB_SECURITY_DPONLY)

		    sw->tb->security_level == TB_SECURITY_DPONLY ||

		    !has_port(sw, TB_TYPE_PCIE_UP))

			return 0;

	} else if (attr == &dev_attr_device.attr) {

		if (!sw->device)