On Fri, Sep 2, 2022 at 3:29 PM Benjamin Tissoires benjamin.tissoires@redhat.com wrote:
Hi,
here comes the v10 of the HID-BPF series.
Again, for a full explanation of HID-BPF, please refer to the last patch in this series (23/23).
Hopefully we are getting closer to merging the bpf-core changes that are pre-requesite of the HID work.
This revision of the series focused on those bpf-core changes with a hopefully proper way of fixing access to ctx pointers, and a few more selftests to cover those changes.
Once those bpf changes are in, the HID changes are pretty much self consistent, which is a good thing, but I still wonder how we are going to merge the selftests. I'd rather have the selftests in the bpf tree to prevent any regression on bpf-core changes, but that might require some coordination between the HID and bpf trees.
Anyway, let's hope we are getting closer to the end of those revisions :)
FWIW, I have now applied the HID patches 8, 9, and 10 to hid.git. They are independent of the bpf work and given how close we are to 6.1, we can take them just now. Patch 11 is having a conflict with the HID tree, so I'll need to handle it in v11 for the HID part.
The first few patches have already been applied in the bpf-next tree, as part of the v11 subset of those patches.
The plan is now to wait for all of these to land in 6.1-rc1, and then submit only the HID changes as a followup series for 6.2.
Cheers, Benjamin
Cheers, Benjamin
Benjamin Tissoires (23): selftests/bpf: regroup and declare similar kfuncs selftests in an array bpf: split btf_check_subprog_arg_match in two bpf/verifier: allow all functions to read user provided context selftests/bpf: add test for accessing ctx from syscall program type bpf/btf: bump BTF_KFUNC_SET_MAX_CNT bpf/verifier: allow kfunc to return an allocated mem selftests/bpf: Add tests for kfunc returning a memory pointer HID: core: store the unique system identifier in hid_device HID: export hid_report_type to uapi HID: convert defines of HID class requests into a proper enum HID: Kconfig: split HID support and hid-core compilation HID: initial BPF implementation selftests/bpf: add tests for the HID-bpf initial implementation HID: bpf: allocate data memory for device_event BPF programs selftests/bpf/hid: add test to change the report size HID: bpf: introduce hid_hw_request() selftests/bpf: add tests for bpf_hid_hw_request HID: bpf: allow to change the report descriptor selftests/bpf: add report descriptor fixup tests selftests/bpf: Add a test for BPF_F_INSERT_HEAD samples/bpf: HID: add new hid_mouse example samples/bpf: HID: add Surface Dial example Documentation: add HID-BPF docs
Documentation/hid/hid-bpf.rst | 513 +++++++++ Documentation/hid/index.rst | 1 + drivers/Makefile | 2 +- drivers/hid/Kconfig | 20 +- drivers/hid/Makefile | 2 + drivers/hid/bpf/Kconfig | 17 + drivers/hid/bpf/Makefile | 11 + drivers/hid/bpf/entrypoints/Makefile | 93 ++ drivers/hid/bpf/entrypoints/README | 4 + drivers/hid/bpf/entrypoints/entrypoints.bpf.c | 66 ++ .../hid/bpf/entrypoints/entrypoints.lskel.h | 682 ++++++++++++ drivers/hid/bpf/hid_bpf_dispatch.c | 526 ++++++++++ drivers/hid/bpf/hid_bpf_dispatch.h | 28 + drivers/hid/bpf/hid_bpf_jmp_table.c | 577 ++++++++++ drivers/hid/hid-core.c | 49 +- include/linux/bpf.h | 11 +- include/linux/bpf_verifier.h | 2 + include/linux/btf.h | 10 + include/linux/hid.h | 38 +- include/linux/hid_bpf.h | 148 +++ include/uapi/linux/hid.h | 26 +- include/uapi/linux/hid_bpf.h | 25 + kernel/bpf/btf.c | 149 ++- kernel/bpf/verifier.c | 66 +- net/bpf/test_run.c | 37 + samples/bpf/.gitignore | 2 + samples/bpf/Makefile | 27 + samples/bpf/hid_mouse.bpf.c | 134 +++ samples/bpf/hid_mouse.c | 161 +++ samples/bpf/hid_surface_dial.bpf.c | 161 +++ samples/bpf/hid_surface_dial.c | 232 ++++ tools/include/uapi/linux/hid.h | 62 ++ tools/include/uapi/linux/hid_bpf.h | 25 + tools/testing/selftests/bpf/Makefile | 2 +- tools/testing/selftests/bpf/config | 3 + tools/testing/selftests/bpf/prog_tests/hid.c | 990 ++++++++++++++++++ .../selftests/bpf/prog_tests/kfunc_call.c | 182 +++- tools/testing/selftests/bpf/progs/hid.c | 206 ++++ .../selftests/bpf/progs/kfunc_call_fail.c | 160 +++ .../selftests/bpf/progs/kfunc_call_test.c | 71 ++ 40 files changed, 5416 insertions(+), 105 deletions(-) create mode 100644 Documentation/hid/hid-bpf.rst create mode 100644 drivers/hid/bpf/Kconfig create mode 100644 drivers/hid/bpf/Makefile create mode 100644 drivers/hid/bpf/entrypoints/Makefile create mode 100644 drivers/hid/bpf/entrypoints/README create mode 100644 drivers/hid/bpf/entrypoints/entrypoints.bpf.c create mode 100644 drivers/hid/bpf/entrypoints/entrypoints.lskel.h create mode 100644 drivers/hid/bpf/hid_bpf_dispatch.c create mode 100644 drivers/hid/bpf/hid_bpf_dispatch.h create mode 100644 drivers/hid/bpf/hid_bpf_jmp_table.c create mode 100644 include/linux/hid_bpf.h create mode 100644 include/uapi/linux/hid_bpf.h create mode 100644 samples/bpf/hid_mouse.bpf.c create mode 100644 samples/bpf/hid_mouse.c create mode 100644 samples/bpf/hid_surface_dial.bpf.c create mode 100644 samples/bpf/hid_surface_dial.c create mode 100644 tools/include/uapi/linux/hid.h create mode 100644 tools/include/uapi/linux/hid_bpf.h create mode 100644 tools/testing/selftests/bpf/prog_tests/hid.c create mode 100644 tools/testing/selftests/bpf/progs/hid.c create mode 100644 tools/testing/selftests/bpf/progs/kfunc_call_fail.c
-- 2.36.1