The members_count field size is 24 bits so mask it properly when reading it.
Signed-off-by: Eli Cohen <e...@mellanox.co.il>
---
Changes: Handle mlx4_multicast_detach too
drivers/net/mlx4/mcg.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
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;
--
1.7.3.2
--
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