linux-kernel - [PATCH 0/3] leds: trigger: Add led trigger for bpf

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Date: Fri, 22 Mar 2024 10:08:13 -0400
From: Daniel Hodges <hodges.daniel.scott@...il.com>
To: ast@...nel.org,
	pavel@....cz,
	lee@...nel.org,
	linux-leds@...r.kernel.org,
	daniel@...earbox.net,
	bpf@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Daniel Hodges <hodges.daniel.scott@...il.com>
Subject: [PATCH 0/3] leds: trigger: Add led trigger for bpf

This patch set adds a new led trigger that uses the bpf subsystem for
triggering leds. It is designed to be used in conjunction with a bpf
program(s) that can modify led state through the use of bpf kfuncs. This
is useful for providing a physical indication that a some event has
occurred. In the context of bpf this could range from handling a packet
to hitting a tracepoint.

Daniel Hodges (3):
  leds: trigger: legtrig-bpf: Add ledtrig-bpf module
  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            | 72 +++++++++++++++++++
 tools/testing/selftests/bpf/config            |  1 +
 .../testing/selftests/bpf/progs/ledtrig_bpf.c | 28 ++++++++
 7 files changed, 126 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

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2.43.0