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Marek Behún 3e313b6c47 leds: trigger: tty: Do not use LED_ON/OFF constants, use led_blink_set_oneshot instead
[ Upstream commit 730094577e0c37e1bc40be37cbd41f71b0a8a2a4 ]

The tty LED trigger uses the obsolete LED_ON & LED_OFF constants when
setting LED brightness. This is bad because the LED_ON constant is equal
to 1, and so when activating the tty LED trigger on a LED class device
with max_brightness greater than 1, the LED is dimmer than it can be
(when max_brightness is 255, the LED is very dimm indeed; some devices
translate 1/255 to 0, so the LED is OFF all the time).

Instead of directly setting brightness to a specific value, use the
led_blink_set_oneshot() function from LED core to configure the blink.
This function takes the current configured brightness as blink
brightness if not zero, and max brightness otherwise.

This also changes the behavior of the TTY LED trigger. Previously if
rx/tx stats kept changing, the LED was ON all the time they kept
changing. With this patch the LED will blink on TTY activity.

Fixes: fd4a641ac8 ("leds: trigger: implement a tty trigger")
Signed-off-by: Marek Behún <kabel@kernel.org>
Link: https://lore.kernel.org/r/20230802090753.13611-1-kabel@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-09-13 09:42:58 +02:00
arch x86/speculation: Mark all Skylake CPUs as vulnerable to GDS 2023-09-13 09:42:57 +02:00
block block/mq-deadline: use correct way to throttling write requests 2023-09-13 09:42:42 +02:00
certs certs: Fix build error when PKCS#11 URI contains semicolon 2023-02-09 11:28:11 +01:00
crypto crypto: api - Use work queue in crypto_destroy_instance 2023-09-13 09:42:32 +02:00
Documentation docs: ABI: fix spelling/grammar in SBEFIFO timeout interface 2023-09-13 09:42:54 +02:00
drivers leds: trigger: tty: Do not use LED_ON/OFF constants, use led_blink_set_oneshot instead 2023-09-13 09:42:58 +02:00
fs Revert "f2fs: fix to do sanity check on extent cache correctly" 2023-09-13 09:42:56 +02:00
include scsi: core: Use 32-bit hostnum in scsi_host_lookup() 2023-09-13 09:42:56 +02:00
init sched/psi: Select KERNFS as needed 2023-09-13 09:42:28 +02:00
io_uring io_uring: fix drain stalls by invalid SQE 2023-09-13 09:42:43 +02:00
ipc ipc: fix memory leak in init_mqueue_fs() 2022-12-31 13:32:01 +01:00
kernel tracing: Fix race issue between cpu buffer write and swap 2023-09-13 09:42:57 +02:00
lib maple_tree: disable mas_wr_append() when other readers are possible 2023-08-30 16:11:13 +02:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm net-memcg: Fix scope of sockmem pressure indicators 2023-09-13 09:42:33 +02:00
net netrom: Deny concurrent connect(). 2023-09-13 09:42:35 +02:00
rust rust: allocator: Prevent mis-aligned allocation 2023-08-11 12:08:18 +02:00
samples samples/bpf: fix broken map lookup probe 2023-09-13 09:42:34 +02:00
scripts kbuild: rust_is_available: fix confusion when a version appears in the path 2023-09-13 09:42:32 +02:00
security smackfs: Prevent underflow in smk_set_cipso() 2023-09-13 09:42:42 +02:00
sound ALSA: ac97: Fix possible error value of *rac97 2023-09-13 09:42:44 +02:00
tools selftests/bpf: Clean up fmod_ret in bench_rename test script 2023-09-13 09:42:33 +02:00
usr usr/gen_init_cpio.c: remove unnecessary -1 values from int file 2022-10-03 14:21:44 -07:00
virt kvm/vfio: ensure kvg instance stays around in kvm_vfio_group_add() 2023-09-13 09:42:46 +02:00
.clang-format inet: ping: use hlist_nulls rcu iterator during lookup 2022-12-01 12:42:46 +01:00
.cocciconfig
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes
.gitignore Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
.mailmap 9 hotfixes. 6 for MM, 3 for other areas. Four of these patches address 2022-12-10 17:10:52 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING
CREDITS MAINTAINERS: Remove Michal Marek from Kbuild maintainers 2022-11-16 14:53:00 +09:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig
MAINTAINERS devlink: move code to a dedicated directory 2023-08-30 16:11:00 +02:00
Makefile kbuild: rust_is_available: remove -v option 2023-09-13 09:42:32 +02:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
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Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.