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| author | Saravana Kannan <saravanak@google.com> | 2019-07-31 15:17:20 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-08-01 16:04:14 +0200 |
| commit | b3173c2292fbaf24ff7062d366830b012ed04269 (patch) | |
| tree | 8c17236a76c30fe2088c1653c149572dc2b33fe9 /drivers/of | |
| parent | 709fb8297358f08a125b770d1518a95d03b541db (diff) | |
| download | linux-stable-b3173c2292fbaf24ff7062d366830b012ed04269.tar.gz linux-stable-b3173c2292fbaf24ff7062d366830b012ed04269.tar.bz2 linux-stable-b3173c2292fbaf24ff7062d366830b012ed04269.zip | |
of/platform: Don't create device links for default busses
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>
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/platform.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/of/platform.c b/drivers/of/platform.c index 52590fb20422..21838226d68a 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -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); } |