diff options
| author | Doug Berger <opendmb@gmail.com> | 2024-04-25 15:27:19 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-05-17 12:15:03 +0200 |
| commit | 6ce3c8a960c8a9db5bac1e3c0af953e2664c929c (patch) | |
| tree | 8728624509af90fb8de84ab680843d5ee258ffac /lib/dynamic_debug.c | |
| parent | 2c994151c8a69c8f15b5f861e28e5bc0dc0d9d1c (diff) | |
net: bcmgenet: synchronize EXT_RGMII_OOB_CTRL access
commit d85cf67a339685beae1d0aee27b7f61da95455be upstream.
The EXT_RGMII_OOB_CTRL register can be written from different
contexts. It is predominantly written from the adjust_link
handler which is synchronized by the phydev->lock, but can
also be written from a different context when configuring the
mii in bcmgenet_mii_config().
The chances of contention are quite low, but it is conceivable
that adjust_link could occur during resume when WoL is enabled
so use the phydev->lock synchronizer in bcmgenet_mii_config()
to be sure.
Fixes: afe3f907d20f ("net: bcmgenet: power on MII block for all MII modes")
Cc: stable@vger.kernel.org
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/dynamic_debug.c')
0 files changed, 0 insertions, 0 deletions