[v2] mlx4: properly mask MGM entry members count

Commit Message

Eli Cohen Nov. 16, 2010, 6:15 p.m. UTC

None

Patch

diff --git a/drivers/net/mlx4/mcg.c b/drivers/net/mlx4/mcg.c
index c4f88b7..5a89631 100644
--- a/drivers/net/mlx4/mcg.c
+++ b/drivers/net/mlx4/mcg.c
@@ -187,7 +187,7 @@  int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
 		memcpy(mgm->gid, gid, 16);
 	}
 
-	members_count = be32_to_cpu(mgm->members_count);
+	members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
 	if (members_count == MLX4_QP_PER_MGM) {
 		mlx4_err(dev, "MGM at index %x is full.\n", index);
 		err = -ENOMEM;
@@ -270,7 +270,7 @@  int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16])
 		goto out;
 	}
 
-	members_count = be32_to_cpu(mgm->members_count);
+	members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
 	for (loc = -1, i = 0; i < members_count; ++i)
 		if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qp->qpn)
 			loc = i;