macsec: no longer rely on RTNL in macsec_fill_info()

Add READ_ONCE()/WRITE_ONCE() annotations on fields that can be
changed concurrently in macsec_changelink() and macsec_update_offload():

- secy->key_len
- secy->xpn
- tx_sc->encoding_sa
- tx_sc->encrypt
- secy->protect_frames
- tx_sc->send_sci
- tx_sc->end_station
- tx_sc->scb
- secy->replay_protect
- secy->validate_frames
- secy->replay_window
- macsec->offload

This allows macsec_fill_info() to run locklessly without RTNL.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Sabrina Dubroca <sd@queasysnail.net>
Cc: Andrew Lunn <andrew+netdev@lunn.ch>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link/20260701094341.3218199-1-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

0 files changed, 0 insertions, 0 deletions