This patch set adds a led trigger that interfaces with the bpf subsystem. It allows for BPF programs to control LED activity using bpf kfuncs. This functionality is useful in giving users a physical indication that a BPF program has performed an operation such as handling a packet or probe point. V1: https://lore.kernel.org/bpf/cover.1711113657.git.hodges.daniel.scott@xxxxxxxxx/ Changes in V2: - Change kfunc to trigger based on LED name. - Fix kfunc registration of BPF_PROG_TYPE_UNSPEC. - Use new kfunc helpers off bpf-next branch. Daniel Hodges (3): leds: trigger: legtrig-bpf: Add ledtrig-bpf trigger selftests/bpf: Add selftests for bpf led programs leds: trigger: Add documentation for ledtrig-bpf Documentation/leds/index.rst | 1 + Documentation/leds/ledtrig-bpf.rst | 13 ++++ drivers/leds/trigger/Kconfig | 10 +++ drivers/leds/trigger/Makefile | 1 + drivers/leds/trigger/ledtrig-bpf.c | 73 +++++++++++++++++++ tools/testing/selftests/bpf/config | 1 + .../testing/selftests/bpf/progs/ledtrig_bpf.c | 32 ++++++++ 7 files changed, 131 insertions(+) create mode 100644 Documentation/leds/ledtrig-bpf.rst create mode 100644 drivers/leds/trigger/ledtrig-bpf.c create mode 100644 tools/testing/selftests/bpf/progs/ledtrig_bpf.c -- 2.43.2
