From b9b39f7332c538ff12f4c31ad497060c9d6fcb52 Mon Sep 17 00:00:00 2001 From: Sindhu-Devale Date: Tue, 6 Sep 2022 17:32:43 -0500 Subject: [PATCH] RDMA/irdma: Use s/g array in post send only when its valid commit 2c8844431d065ae15a6b442f5769b60aeaaa07af upstream. Send with invalidate verb call can pass in an uninitialized s/g array with 0 sge's which is filled into irdma WQE and causes a HW asynchronous event. Fix this by using the s/g array in irdma post send only when its valid. Fixes: 551c46e ("RDMA/irdma: Add user/kernel shared libraries") Signed-off-by: Sindhu-Devale Signed-off-by: Shiraz Saleem Link: https://lore.kernel.org/r/20220906223244.1119-5-shiraz.saleem@intel.com Signed-off-by: Leon Romanovsky Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/hw/irdma/uk.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/irdma/uk.c b/drivers/infiniband/hw/irdma/uk.c index 7e6c3ba..aecd64a 100644 --- a/drivers/infiniband/hw/irdma/uk.c +++ b/drivers/infiniband/hw/irdma/uk.c @@ -501,7 +501,8 @@ enum irdma_status_code irdma_uk_send(struct irdma_qp_uk *qp, FIELD_PREP(IRDMAQPSQ_IMMDATA, info->imm_data)); i = 0; } else { - qp->wqe_ops.iw_set_fragment(wqe, 0, op_info->sg_list, + qp->wqe_ops.iw_set_fragment(wqe, 0, + frag_cnt ? op_info->sg_list : NULL, qp->swqe_polarity); i = 1; } -- 2.7.4