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Commit 07607c54 authored by David S. Miller's avatar David S. Miller
Browse files

[SPARC64]: Fix domain-services port probing. 



We should only use ports underneath "domain-services", other DS ports
in the MDESC aren't for us to use.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a4aa2e86

arch/sparc64/kernel/vio.c

+26 −1
Original line number Diff line number Diff line
@@ -342,8 +342,33 @@ static struct mdesc_notifier_client vio_device_notifier = { 
	.node_name	= "virtual-device-port",

};



/* We are only interested in domain service ports under the

 * "domain-services" node.  On control nodes there is another port

 * under "openboot" that we should not mess with as aparently that is

 * reserved exclusively for OBP use.

 */

static void vio_add_ds(struct mdesc_handle *hp, u64 node)

{

	int found;

	u64 a;



	found = 0;

	mdesc_for_each_arc(a, hp, node, MDESC_ARC_TYPE_BACK) {

		u64 target = mdesc_arc_target(hp, a);

		const char *name = mdesc_node_name(hp, target);



		if (!strcmp(name, "domain-services")) {

			found = 1;

			break;

		}

	}



	if (found)

		(void) vio_create_one(hp, node, &root_vdev->dev);

}



static struct mdesc_notifier_client vio_ds_notifier = {

	.add		= vio_add,

	.add		= vio_add_ds,

	.remove		= vio_remove,

	.node_name	= "domain-services-port",

};