From 2c8844431d065ae15a6b442f5769b60aeaaa07af Mon Sep 17 00:00:00 2001
From: Sindhu-Devale <sindhu.devale@intel.com>
Date: Tue, 6 Sep 2022 17:32:43 -0500
Subject: [PATCH 1/1] RDMA/irdma: Use s/g array in post send only when its
valid
Git-commit: 2c8844431d065ae15a6b442f5769b60aeaaa07af
Patch-mainline: v6.0
References: git-fixes
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 <sindhu.devale@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/20220906223244.1119-5-shiraz.saleem@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Acked-by: Nicolas Morey-Chaisemartin <nmoreychaisemartin@suse.com>
---
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 d003ad864ee4..a6e5d350a94c 100644
--- a/drivers/infiniband/hw/irdma/uk.c
+++ b/drivers/infiniband/hw/irdma/uk.c
@@ -497,7 +497,8 @@ int irdma_uk_send(struct irdma_qp_uk *qp, struct irdma_post_sq_info *info,
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;
}
--
2.38.0.1.gee35aeee4b76