Merge branch 'net-add-retry-mechanism-to-ndo_set_rx_mode_async'

Stanislav Fomichev says:

====================
net: add retry mechanism to ndo_set_rx_mode_async

Original async ndo_set_rx_mode work left one place where we do netdev_WARN
in response to a ENOMEM. The intent was to see whether actual real
users can hit that (adding uc/mc under memory pressure seems like a
very unlikely thing to do). However, it was quickly triggered by
syzbot's failslab. Add a retry mechanism and downgrade netdev_WARN
to netdev_err. The retry logic is a typical exponential backoff:
1, 2, 4, 8 seconds, 15 in total, hopefully enough for a system to resolve
memory pressure.
====================

Link: https://patch.msgid.link/20260608154014.227538-1-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>