From: David S. Miller Date: Thu, 4 Oct 2007 04:08:11 +0000 (-0700) Subject: [SPARC64]: Fix domain-services port probing. X-Git-Tag: v2.6.23~28^2~4 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=07607c5492f836923c2ab9eb1cd1d39be7dace49;p=linux-2.6-omap-h63xx.git [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: David S. Miller --- diff --git a/arch/sparc64/kernel/vio.c b/arch/sparc64/kernel/vio.c index 1550ac5673d..830dc88c19c 100644 --- a/arch/sparc64/kernel/vio.c +++ b/arch/sparc64/kernel/vio.c @@ -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", };