From: Vivien Didelot
Date: Wed, 15 Mar 2017 15:53:47 -0400
> The ageing time limits supported by DSA drivers vary depending on the
> switch model. If a driver returns -ERANGE for out-of-range values, the
> switchdev commit phase will fail with the following stacktrace:
...
> This patchset fixes
> This patchset fixes this by adding ageing_time_min and ageing_time_max
> fields to the dsa_switch structure, which can optionally be set by a DSA
> driver.
>
> If provided, the DSA core will check for out-of-range values in the
> SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME prepare phase and return -ERA
The ageing time limits supported by DSA drivers vary depending on the
switch model. If a driver returns -ERANGE for out-of-range values, the
switchdev commit phase will fail with the following stacktrace:
# brctl setageing br0 4
[ 8530.082179] WARNING: CPU: 0 PID: 910 at net/switchdev/swit
