Hello,
I am sending the first non-RFC version of the series adding support
for offloading LED triggers to HW, with the netdev trigger being the
first user.
I have addressed the issues with the RFC version from October.
This version only implements the offloading API and adds support for
offloading to the netdev trigger. In the RFC I also added one user of
this API (Marvell ethernet PHY driver). I plan to continue the work on
those patches once the offloading API is finally merged.
Also, there is now other possible user for this API: leds-nuc driver
by Mauro.
Changes since RFC:
- split the patch adding HW offloading support to netdev trigger into
several separate patches (suggested by Pavel):
1. move trigger data structure to include/linux/ledtrig.h
2. support HW offloading
3. change spinlock to mutex
- fixed bug where the .offloaded variable was not set to false when
offloading was disabled (suggested by Pavel)
- removed the code saving one call to set_baseline_state() on the
NETDEV_CHANGE event. It is not needed, the trigger_offload() method
can handle this situation on its own (suggested by Pavel)
- documentation now explicitly says that when offloading is being
disabled, the function must return 0 (no error) (suggested by Pavel)
Marek Behún (5):
leds: trigger: netdev: don't explicitly zero kzalloced data
leds: trigger: add API for HW offloading of triggers
leds: trigger: netdev: move trigger data structure to global include
dir
leds: trigger: netdev: support HW offloading
leds: trigger: netdev: change spinlock to mutex
Documentation/leds/leds-class.rst | 22 +++++++++++++
drivers/leds/led-triggers.c | 1 +
drivers/leds/trigger/ledtrig-netdev.c | 47 ++++++++-------------------
include/linux/leds.h | 29 +++++++++++++++++
include/linux/ledtrig.h | 40 +++++++++++++++++++++++
5 files changed, 105 insertions(+), 34 deletions(-)
create mode 100644 include/linux/ledtrig.h
--
2.26.3
