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[5.13,427/800] RDMA/hns: Fix wrong timer context buffer page size

Message ID 20210712061012.550086354@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH July 12, 2021, 6:07 a.m. UTC 
From: Xi Wang <wangxi11@huawei.com>

[ Upstream commit 5e6370d7cc75134b0eb5b15916aab40b628db9e1 ]

The HEM page size for QPC timer and CQC timer is always 4K and there's no
need to calculate a different size by the hns driver, otherwise the ROCEE
may access an invalid address.

Fixes: 719d13415f59 ("RDMA/hns: Remove duplicated hem page size config code")
Link: https://lore.kernel.org/r/1621589395-2435-4-git-send-email-liweihang@huawei.com
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 6 ------
 1 file changed, 6 deletions(-)
diff mbox series

Patch

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 49bb4f51466c..d7289b6587f1 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -2092,12 +2092,6 @@  static void set_hem_page_size(struct hns_roce_dev *hr_dev)
 	calc_pg_sz(caps->max_cqes, caps->cqe_sz, caps->cqe_hop_num,
 		   1, &caps->cqe_buf_pg_sz, &caps->cqe_ba_pg_sz, HEM_TYPE_CQE);
 
-	if (caps->cqc_timer_entry_sz)
-		calc_pg_sz(caps->num_cqc_timer, caps->cqc_timer_entry_sz,
-			   caps->cqc_timer_hop_num, caps->cqc_timer_bt_num,
-			   &caps->cqc_timer_buf_pg_sz,
-			   &caps->cqc_timer_ba_pg_sz, HEM_TYPE_CQC_TIMER);
-
 	/* SRQ */
 	if (caps->flags & HNS_ROCE_CAP_FLAG_SRQ) {
 		calc_pg_sz(caps->num_srqs, caps->srqc_entry_sz,