diff options
| author | Oleksij Rempel <o.rempel@pengutronix.de> | 2025-09-08 13:26:19 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-09-19 16:37:30 +0200 |
| commit | 2878c584b192377cd52743fe21ea18614c57da87 (patch) | |
| tree | 421c0e35719114c013ecd480785867f42408863d /kernel/power/hibernate.c | |
| parent | 782369a022f920bbccd407fe8fbfd0e359b93790 (diff) | |
net: usb: asix: ax88772: drop phylink use in PM to avoid MDIO runtime PM wakeups
commit 5537a4679403423e0b49c95b619983a4583d69c5 upstream.
Drop phylink_{suspend,resume}() from ax88772 PM callbacks.
MDIO bus accesses have their own runtime-PM handling and will try to
wake the device if it is suspended. Such wake attempts must not happen
from PM callbacks while the device PM lock is held. Since phylink
{sus|re}sume may trigger MDIO, it must not be called in PM context.
No extra phylink PM handling is required for this driver:
- .ndo_open/.ndo_stop control the phylink start/stop lifecycle.
- ethtool/phylib entry points run in process context, not PM.
- phylink MAC ops program the MAC on link changes after resume.
Fixes: e0bffe3e6894 ("net: asix: ax88772: migrate to phylink")
Reported-by: Hubert Wiśniewski <hubert.wisniewski.25632@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Tested-by: Hubert Wiśniewski <hubert.wisniewski.25632@gmail.com>
Tested-by: Xu Yang <xu.yang_2@nxp.com>
Link: https://patch.msgid.link/20250908112619.2900723-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/power/hibernate.c')
0 files changed, 0 insertions, 0 deletions