net/mlx4: fix sparse warnings on wrong type for RSS keys
authorYevgeny Petrilin <yevgenyp@mellanox.co.il>
Tue, 6 Mar 2012 04:04:07 +0000 (04:04 +0000)
committerDavid S. Miller <davem@davemloft.net>
Tue, 6 Mar 2012 20:19:17 +0000 (15:19 -0500)
The keys used for the hardware RSS topelitz hash are of type __be32
where the values provided by the driver are from array of u32,
this triggered sparse warning on incorrect type in assignment as of different base types.
Since these values are picked randomly,
the fix is to transform the key to __be32 by executing cpu_to_be_32()

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/mellanox/mlx4/en_rx.c

index c881712b749288ab3254f3e4404707c02f5e6a57..9adbd53da525ba59b5d9f1378e347b029533f0d7 100644 (file)
@@ -910,7 +910,7 @@ int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv)
        rss_context->flags = rss_mask;
        rss_context->hash_fn = MLX4_RSS_HASH_TOP;
        for (i = 0; i < 10; i++)
-               rss_context->rss_key[i] = rsskey[i];
+               rss_context->rss_key[i] = cpu_to_be32(rsskey[i]);
 
        err = mlx4_qp_to_ready(mdev->dev, &priv->res.mtt, &context,
                               &rss_map->indir_qp, &rss_map->indir_state);