Merge branch 'net-sched-taprio-fix-picos_per_byte-miscalculation'

Leandro Dorileo says:

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net/sched: taprio: fix picos_per_byte miscalculation

This set fixes miscalculations based on invalid link speed values.

Changes in v6:
 + Avoid locking a spinlock while calling __ethtool_get_link_ksettings()
   (suggested by: Cong Wang);

Changes in v5:
 + Don't iterate over all the net_device maintained list (suggested by: Florian Fainelli);

Changes in v4:
 + converted pr_info calls to netdev_dbg (suggested by: Florian Fainelli);

Changes in v3:
 + yet pr_info() format warnings;

Changes in v2:
 + fixed pr_info() format both on cbs and taprio patches;
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Signed-off-by: David S. Miller <davem@davemloft.net>