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Commit 9c58726b authored by Naresh Gottumukkala's avatar Naresh Gottumukkala Committed by Roland Dreier
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RDMA/ocrdma: Don't allow zero/invalid sgid usage 



Signed-off-by: default avatarNaresh Gottumukkala <bgottumukkala@emulex.com>
Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
parent 1afc0454

drivers/infiniband/hw/ocrdma/ocrdma_hw.c

+7 −1
Original line number Diff line number Diff line
@@ -2124,9 +2124,10 @@ static int ocrdma_set_av_params(struct ocrdma_qp *qp, 
{

	int status;

	struct ib_ah_attr *ah_attr = &attrs->ah_attr;

	union ib_gid sgid;

	union ib_gid sgid, zgid;

	u32 vlan_id;

	u8 mac_addr[6];



	if ((ah_attr->ah_flags & IB_AH_GRH) == 0)

		return -EINVAL;

	cmd->params.tclass_sq_psn |=
@@ -2142,6 +2143,11 @@ static int ocrdma_set_av_params(struct ocrdma_qp *qp, 
			 ah_attr->grh.sgid_index, &sgid);

	if (status)

		return status;



	memset(&zgid, 0, sizeof(zgid));

	if (!memcmp(&sgid, &zgid, sizeof(zgid)))

		return -EINVAL;



	qp->sgid_idx = ah_attr->grh.sgid_index;

	memcpy(&cmd->params.sgid[0], &sgid.raw[0], sizeof(cmd->params.sgid));

	ocrdma_resolve_dgid(qp->dev, &ah_attr->grh.dgid, &mac_addr[0]);