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xsk: simplify xdp_clear_umem_at_qid implementation

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As we now do not allow ethtool to deactivate the queue id we are
running an AF_XDP socket on, we can simplify the implementation of
xdp_clear_umem_at_qid().

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Magnus Karlsson 2018-10-01 14:51:37 +02:00 • committed by Daniel Borkmann
parent 1661d34662
commit a41b4f3c58
1 changed files with 2 additions and 5 deletions
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7
net/xdp/xdp_umem.c
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@ -68,12 +68,9 @@ struct xdp_umem *xdp_get_umem_from_qid(struct net_device *dev,
static void xdp_clear_umem_at_qid(struct net_device *dev, u16 queue_id) static void xdp_clear_umem_at_qid(struct net_device *dev, u16 queue_id)
{ {
/* Zero out the entry independent on how many queues are configured if (queue_id < dev->real_num_rx_queues)
* at this point in time, as it might be used in the future.
*/
if (queue_id < dev->num_rx_queues)
dev->_rx[queue_id].umem = NULL; dev->_rx[queue_id].umem = NULL;
if (queue_id < dev->num_tx_queues) if (queue_id < dev->real_num_tx_queues)
dev->_tx[queue_id].umem = NULL; dev->_tx[queue_id].umem = NULL;
} }