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of/platform: Don't create device links for default busses

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Default busses also have devices created for them. But there's no point
in creating device links for them. It's especially wasteful as it'll
cause the traversal of the entire device tree and also spend a lot of
time checking and figuring out that creating those links isn't allowed.
So check for default busses and skip trying to create device links for
them.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20190731221721.187713-8-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Saravana Kannan 2019-07-31 15:17:20 -07:00 committed by Greg Kroah-Hartman
parent 709fb82973
commit b3173c2292
1 changed files with 2 additions and 0 deletions
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2
drivers/of/platform.c
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@ -677,6 +677,8 @@ static int of_link_to_suppliers(struct device *dev)
return 0;
if (unlikely(!dev->of_node))
return 0;
if (of_match_node(of_default_bus_match_table, dev->of_node))
return 0;
return __of_link_to_suppliers(dev, dev->of_node);
}