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assigning a dummy value of 'clock_id' to avoid cancellation of the cycle
timer before its initialization was a temporary solution, and we still
need to handle the case where act_gate timer parameters are changed by
commands like the following one:
# tc action replace action gate <parameters>
the fix consists in the following items:
1) remove the workaround assignment of 'clock_id', and init the list of
entries before the first error path after IDR atomic check/allocation
2) validate 'clock_id' earlier: there is no need to do IDR atomic
check/allocation if we know that 'clock_id' is a bad value
3) use a dedicated function, 'gate_setup_timer()', to ensure that the
timer is cancelled and re-initialized on action overwrite, and also
ensure we initialize the timer in the error path of tcf_gate_init()
v3: improve comment in the error path of tcf_gate_init() (thanks to
Vladimir Oltean)
v2: avoid 'goto' in gate_setup_timer (thanks to Cong Wang)
CC: Ivan Vecera <ivecera@redhat.com>
Fixes: a01c245438c5 ("net/sched: fix a couple of splats in the error path of tfc_gate_init()")
Fixes: a51c328df310 ("net: qos: introduce a gate control flow action")
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
c362a06e96