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| author | Saravana Kannan <saravanak@google.com> | 2019-10-28 15:00:23 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-02 18:05:17 +0100 |
| commit | bcbbcfd57247f4c2976055995e5760fb576aae1e (patch) | |
| tree | cb6db68c1ef8083ff8eb7899b2fd6d1a1dbce94c /include | |
| parent | 05ef983e0d65a31b370a4e1b93c1efd490ae778f (diff) | |
| download | linux-stable-bcbbcfd57247f4c2976055995e5760fb576aae1e.tar.gz linux-stable-bcbbcfd57247f4c2976055995e5760fb576aae1e.tar.bz2 linux-stable-bcbbcfd57247f4c2976055995e5760fb576aae1e.zip | |
driver core: Allow a device to wait on optional suppliers
Before this change, if a device is waiting on suppliers, it's assumed
that all those suppliers are needed for the device to probe
successfully. This change allows marking a devices as waiting only on
optional suppliers. This allows a device to wait on suppliers (and link
to them as soon as they are available) without preventing the device
from being probed.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20191028220027.251605-3-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/device.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index 82890e1b8f08..d1bcc8f122f6 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -1155,6 +1155,8 @@ enum dl_dev_state { * @consumers: List of links to consumer devices. * @needs_suppliers: Hook to global list of devices waiting for suppliers. * @defer_sync: Hook to global list of devices that have deferred sync_state. + * @need_for_probe: If needs_suppliers is on a list, this indicates if the + * suppliers are needed for probe or not. * @status: Driver status information. */ struct dev_links_info { @@ -1162,6 +1164,7 @@ struct dev_links_info { struct list_head consumers; struct list_head needs_suppliers; struct list_head defer_sync; + bool need_for_probe; enum dl_dev_state status; }; |