linux-kernel - [PATCH 5.7 132/265] RDMA/efa: Set maximum pkeys device attribute

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Message-Id: <20200629151818.2493727-133-sashal@kernel.org>
Date:   Mon, 29 Jun 2020 11:16:05 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Gal Pressman <galpress@...zon.com>,
        Firas JahJah <firasj@...zon.com>,
        Yossi Leybovich <sleybo@...zon.com>,
        Jason Gunthorpe <jgg@...lanox.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.7 132/265] RDMA/efa: Set maximum pkeys device attribute

From: Gal Pressman <galpress@...zon.com>

[ Upstream commit 0133654d8eb8607eacc96badfe49bf992155f4cb ]

The max_pkeys device attribute was not set in query device verb, set it to
one in order to account for the default pkey (0xffff). This information is
exposed to userspace and can cause malfunction

Fixes: 40909f664d27 ("RDMA/efa: Add EFA verbs implementation")
Link: https://lore.kernel.org/r/20200614103534.88060-1-galpress@amazon.com
Reviewed-by: Firas JahJah <firasj@...zon.com>
Reviewed-by: Yossi Leybovich <sleybo@...zon.com>
Signed-off-by: Gal Pressman <galpress@...zon.com>
Signed-off-by: Jason Gunthorpe <jgg@...lanox.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/infiniband/hw/efa/efa_verbs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/hw/efa/efa_verbs.c b/drivers/infiniband/hw/efa/efa_verbs.c
index 5c57098a4aee5..3420c77424861 100644
--- a/drivers/infiniband/hw/efa/efa_verbs.c
+++ b/drivers/infiniband/hw/efa/efa_verbs.c
@@ -209,6 +209,7 @@ int efa_query_device(struct ib_device *ibdev,
 	props->max_send_sge = dev_attr->max_sq_sge;
 	props->max_recv_sge = dev_attr->max_rq_sge;
 	props->max_sge_rd = dev_attr->max_wr_rdma_sge;
+	props->max_pkeys = 1;
 
 	if (udata && udata->outlen) {
 		resp.max_sq_sge = dev_attr->max_sq_sge;
-- 
2.25.1