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| author | Moni Shoua <monis@mellanox.com> | 2014-08-21 14:28:38 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-10-05 14:52:22 -0700 |
| commit | cb264bf0c428cb776a364a7f75122a6d40cbb7bd (patch) | |
| tree | a85c65ec519f4b9912f9f058fe85cb5094c66bfa /drivers | |
| parent | 3554cf91ce37c3d6e6ac3ad5f89a65a41c3852af (diff) | |
| download | linux-stable-cb264bf0c428cb776a364a7f75122a6d40cbb7bd.tar.gz linux-stable-cb264bf0c428cb776a364a7f75122a6d40cbb7bd.tar.bz2 linux-stable-cb264bf0c428cb776a364a7f75122a6d40cbb7bd.zip | |
IB/mlx4: Don't duplicate the default RoCE GID
commit f5c4834d9328c4ed9fe5dcbec6128d6da16db69a upstream.
When reading the IPv6 addresses from the net-device, make sure to
avoid adding a duplicate entry to the GID table because of equality
between the default GID we generate and the default IPv6 link-local
address of the device.
Fixes: acc4fccf4eff ("IB/mlx4: Make sure GID index 0 is always occupied")
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/main.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 22226a2354de..11f0606792bb 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1622,6 +1622,7 @@ static void mlx4_ib_get_dev_addr(struct net_device *dev, struct inet6_dev *in6_dev; union ib_gid *pgid; struct inet6_ifaddr *ifp; + union ib_gid default_gid; #endif union ib_gid gid; @@ -1642,12 +1643,15 @@ static void mlx4_ib_get_dev_addr(struct net_device *dev, in_dev_put(in_dev); } #if IS_ENABLED(CONFIG_IPV6) + mlx4_make_default_gid(dev, &default_gid); /* IPv6 gids */ in6_dev = in6_dev_get(dev); if (in6_dev) { read_lock_bh(&in6_dev->lock); list_for_each_entry(ifp, &in6_dev->addr_list, if_list) { pgid = (union ib_gid *)&ifp->addr; + if (!memcmp(pgid, &default_gid, sizeof(*pgid))) + continue; update_gid_table(ibdev, port, pgid, 0, 0); } read_unlock_bh(&in6_dev->lock); |