On Wed, Dec 02, 2020 at 04:54:24PM -0800, Dan Williams wrote: > From: Dave Ertman <david.m.ertman@xxxxxxxxx> > > Add support for the Auxiliary Bus, auxiliary_device and auxiliary_driver. > It enables drivers to create an auxiliary_device and bind an > auxiliary_driver to it. > > The bus supports probe/remove shutdown and suspend/resume callbacks. > Each auxiliary_device has a unique string based id; driver binds to > an auxiliary_device based on this id through the bus. > > Co-developed-by: Kiran Patil <kiran.patil@xxxxxxxxx> > Co-developed-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx> > Co-developed-by: Fred Oh <fred.oh@xxxxxxxxxxxxxxx> > Co-developed-by: Leon Romanovsky <leonro@xxxxxxxxxx> > Signed-off-by: Kiran Patil <kiran.patil@xxxxxxxxx> > Signed-off-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx> > Signed-off-by: Fred Oh <fred.oh@xxxxxxxxxxxxxxx> > Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxx> > Signed-off-by: Dave Ertman <david.m.ertman@xxxxxxxxx> > Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx> > Reviewed-by: Shiraz Saleem <shiraz.saleem@xxxxxxxxx> > Reviewed-by: Parav Pandit <parav@xxxxxxxxxxxx> > Reviewed-by: Dan Williams <dan.j.williams@xxxxxxxxx> > Reviewed-by: Martin Habets <mhabets@xxxxxxxxxxxxxx> > Link: https://lore.kernel.org/r/20201113161859.1775473-2-david.m.ertman@xxxxxxxxx > Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx> > --- > This patch is "To:" the maintainers that have a pending backlog of > driver updates dependent on this facility, and "Cc:" Greg. Greg, I > understand you have asked for more time to fully review this and apply > it to driver-core.git, likely for v5.12, but please consider Acking it > for v5.11 instead. It looks good to me and several other stakeholders. > Namely, stakeholders that have pressure building up behind this facility > in particular Mellanox RDMA, but also SOF, Intel Ethernet, and later on > Compute Express Link. > > I will take the blame for the 2 months of silence that made this awkward > to take through driver-core.git, but at the same time I do not want to > see that communication mistake inconvenience other parties that > reasonably thought this was shaping up to land in v5.11. > > I am willing to host this version at: > > git://git.kernel.org/pub/scm/linux/kernel/git/djbw/linux tags/auxiliary-bus-for-5.11 > > ...for all the independent drivers to have a common commit baseline. It > is not there yet pending Greg's Ack. Here is now a signed tag for everyone else to pull from and build on top of, for 5.11-rc1, that includes this patch, and the 3 others I sent in this series. Please let me know if anyone has any problems with this tag. I'll keep it around until 5.11-rc1 is released, after which it doesn't make any sense to be there. thanks, greg k-h --------------- The following changes since commit f8394f232b1eab649ce2df5c5f15b0e528c92091: Linux 5.10-rc3 (2020-11-08 16:10:16 -0800) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git tags/auxbus-5.11-rc1 for you to fetch changes up to 0d2bf11a6b3e275a526b8d42d8d4a3a6067cf953: driver core: auxiliary bus: minor coding style tweaks (2020-12-04 13:30:59 +0100) ---------------------------------------------------------------- Auxiliary Bus support tag for 5.11-rc1 This is a signed tag for other subsystems to be able to pull in the auxiliary bus support into their trees for the 5.11-rc1 merge. Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> ---------------------------------------------------------------- Dave Ertman (1): Add auxiliary bus support Greg Kroah-Hartman (3): driver core: auxiliary bus: move slab.h from include file driver core: auxiliary bus: make remove function return void driver core: auxiliary bus: minor coding style tweaks Documentation/driver-api/auxiliary_bus.rst | 234 ++++++++++++++++++++++++ Documentation/driver-api/index.rst | 1 + drivers/base/Kconfig | 3 + drivers/base/Makefile | 1 + drivers/base/auxiliary.c | 274 +++++++++++++++++++++++++++++ include/linux/auxiliary_bus.h | 77 ++++++++ include/linux/mod_devicetable.h | 8 + scripts/mod/devicetable-offsets.c | 3 + scripts/mod/file2alias.c | 8 + 9 files changed, 609 insertions(+) create mode 100644 Documentation/driver-api/auxiliary_bus.rst create mode 100644 drivers/base/auxiliary.c create mode 100644 include/linux/auxiliary_bus.h
