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author | David S. Miller <davem@sunset.davemloft.net> | 2007-10-04 04:08:11 (GMT) |
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committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-04 04:08:11 (GMT) |
commit | 07607c5492f836923c2ab9eb1cd1d39be7dace49 (patch) | |
tree | 9fe2ba73b293afe2530c7172487b84ff8027aade /arch | |
parent | a4aa2e867c5d696c0f249ad8d63d0d983b4ffaf9 (diff) | |
download | linux-07607c5492f836923c2ab9eb1cd1d39be7dace49.tar.xz |
[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 <davem@davemloft.net>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/sparc64/kernel/vio.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/arch/sparc64/kernel/vio.c b/arch/sparc64/kernel/vio.c index 1550ac5..830dc88 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", }; |