dpaa2-eth: Add flow steering support without masking

Hello Ioana Ciocoi Radulescu,

The patch 2d6802374c69: "dpaa2-eth: Add flow steering support without masking" from Apr 16, 2019, leads to the following static checker warning:

drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c:503 do_cls_rule()
warn: was expecting a 64 bit value instead of '0'

drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
486 static int do_cls_rule(struct net_device *net_dev,
487 struct ethtool_rx_flow_spec *fs,
488 bool add)
489 {

   490          struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
   491          struct device *dev = net_dev->dev.parent;
   492          struct dpni_rule_cfg rule_cfg = { 0 };
   493          struct dpni_fs_action_cfg fs_act = { 0 };
   494          dma_addr_t key_iova;
   495          u64 fields = 0;
   496          void *key_buf;
   497          int err;
   498  
   499          if (fs->ring_cookie != RX_CLS_FLOW_DISC &&
   500              fs->ring_cookie >= dpaa2_eth_queue_count(priv))
   501                  return -EINVAL;
   502  
   503          rule_cfg.key_size = dpaa2_eth_cls_key_size(DPAA2_ETH_DIST_ALL);
                                                           ^^^^^^^^^^^^^^^^^^

This is UINT_MAX but we probably wanted to pass U64_MAX.

504

   505          /* allocate twice the key size, for the actual key and for mask */
   506          key_buf = kzalloc(rule_cfg.key_size * 2, GFP_KERNEL);
   507          if (!key_buf)

508 return -ENOMEM;

See also:
drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c:2870 dpaa2_eth_set_default_cls() warn: was expecting a 64 bit value instead of '0'

regards,
dan carpenter