On Friday, November 9, 2018 3:21:32 PM CET Heikki Krogerus wrote: > Hi, > > This is the second version of my proposal for "software nodes". There > was a "dereferencing freed memory" bug in patch 3/5 which is now > fixed. device_add_properties() and device_remove_properties() no > longer change places in the code as requested by Andy. > > The original RFC can be checked from here: > https://lkml.org/lkml/2018/10/12/518 > > The origin commit message: > > To continue the discussion started by Dmitry [1], this is my proposal > that I mentioned in my last mail. In short, the idea is that instead > of trying to extend the support for the currently used struct > property_set, I'm proposing that we introduce a completely new, > independent type of fwnode, and replace the struct property_set with > it. I'm calling the type "software node" here. > > The reason for a complete separation of the software nodes from the > generic property handling code is the need to be able to create the > nodes independently from the devices that they are bind to. > > The way this works is that every node that is created will have a > kobject registered. That will take care the ref counting for us, and > also allow us to for example display the properties in sysfs. > > There are a few more details in patch 3/5 about the software nodes in > the commit message. > > [1] https://lkml.org/lkml/2018/9/17/1067 > > -- > heikki > > > Heikki Krogerus (6): > driver core: platform: Remove duplicated device_remove_properties() > call > drivers core: Prepare support for multiple platform notifications > ACPI / glue: Add acpi_platform_notify() function > drivers: base: Introducing software nodes to the firmware node > framework > device property: Move device_add_properties() to swnode.c > device property: Remove struct property_set > > .../ABI/testing/sysfs-devices-software_node | 10 + > drivers/acpi/bus.c | 1 - > drivers/acpi/glue.c | 21 +- > drivers/acpi/internal.h | 1 - > drivers/base/Makefile | 2 +- > drivers/base/core.c | 34 +- > drivers/base/platform.c | 1 - > drivers/base/property.c | 511 +------------ > drivers/base/swnode.c | 678 ++++++++++++++++++ > include/linux/acpi.h | 10 + > include/linux/property.h | 12 + > 11 files changed, 768 insertions(+), 513 deletions(-) > create mode 100644 Documentation/ABI/testing/sysfs-devices-software_node > create mode 100644 drivers/base/swnode.c > > All [1-6/6] applied, thanks!
