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RDMA/ocrdma: Don't allow zero/invalid sgid usage 

Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Naresh Gottumukkala 2013-08-07 12:52:34 +05:30 committed by Roland Dreier
parent 1afc0454b6
commit 9c58726ba9
1 changed files with 7 additions and 1 deletions
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8
drivers/infiniband/hw/ocrdma/ocrdma_hw.c
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@ -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]);