diff options
| -rw-r--r-- | drivers/infiniband/hw/irdma/verbs.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/irdma/verbs.c b/drivers/infiniband/hw/irdma/verbs.c index 1dd4a48c268d..81593bb1917e 100644 --- a/drivers/infiniband/hw/irdma/verbs.c +++ b/drivers/infiniband/hw/irdma/verbs.c @@ -1138,8 +1138,12 @@ static int irdma_create_qp(struct ib_qp *ibqp, init_completion(&iwqp->free_qp); if (udata) { - /* GEN_1 legacy support with libi40iw does not have expanded uresp struct */ - if (udata->outlen < sizeof(uresp)) { + /* GEN_1 legacy support with libi40iw does not have expanded + * uresp struct. Check for the exact legacy size (20 bytes) to + * ensure that newer expanded uresp structs don't accidentally + * trigger the legacy fallback. + */ + if (udata->outlen == IRDMA_CREATE_QP_MIN_RESP_LEN) { uresp.lsmm = 1; uresp.push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX_GEN_1; } else { |