Greg,
These four patches update the component helper by: * Removing the legacy matching code with the .add_components method in the master's operation structure. Nothing in -rc1 appears to be using the legacy functions or method, according to my git greps.
* A slight code reorganisation which results in slightly easier to read code.
* Switch to tracking components via an array rather than a list, which allows us to keep the matching and matched components together, and more importantly allows us to reduce the amount of matching - with this structure, we can incrementally add the component devices as they become available, rather than re-running the list of matches each time something changes.
* Fix the lack of match release functionality, which Liviu Dudau reminded me was missing. This allows people who want to pass device_node structures in to (correctly) retain the reference to the node, and drop the node when the need to do matches is no longer required.
The first three patches have been well tested over the last year as I've had them in my tree that long. I hadn't considered them important enough to send as they're only removing and cleaning up functionality. However, with the need to fix something, it now makes sense to get them merged.
The last patch has been tested with etnaviv DRM to prove that the match release works by unloading the module. On unload, the release function is correctly called.
This is intended for the next merge window. Please apply.
drivers/base/component.c | 281 ++++++++++++++++++++++++---------------------- include/linux/component.h | 33 ++++-- 2 files changed, 167 insertions(+), 147 deletions(-)