net: export netdev_txq_to_tc to allow sch_mqprio to compile as module
In commit 32302902 ("mqprio: Reserve last 32 classid values for HW traffic classes and misc IDs") sch_mqprio started using netdev_txq_to_tc to find the correct tc instead of dev->tc_to_txq[] However, when mqprio is compiled as a module, it cannot resolve the symbol, leading to this error: ERROR: "netdev_txq_to_tc" [net/sched/sch_mqprio.ko] undefined! This adds an EXPORT_SYMBOL() since the other user in the kernel (netif_set_xps_queue) is also EXPORT_SYMBOL() (and not _GPL) or in a sysfs-callback. Cc: Alexander Duyck <alexander.h.duyck@intel.com> Cc: Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Henrik Austad <haustad@cisco.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Acked-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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