linux-kernel - [PATCH 4.14 006/118] IB/srpt: Fix ACL lookup during login

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Date:   Mon, 15 Jan 2018 13:33:53 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Bart Van Assche <bart.vanassche@....com>,
        Jason Gunthorpe <jgg@...lanox.com>
Subject: [PATCH 4.14 006/118] IB/srpt: Fix ACL lookup during login

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Bart Van Assche <bart.vanassche@....com>

commit a1ffa4670cb97ae3a4b3e8535d88be5f643f7c3b upstream.

Make sure that the initiator port GUID is stored in ch->ini_guid.
Note: when initiating a connection sgid and dgid members in struct
sa_path_rec represent the source and destination GIDs. When accepting
a connection however sgid represents the destination GID and dgid the
source GID.

Fixes: commit 2bce1a6d2209 ("IB/srpt: Accept GUIDs as port names")
Signed-off-by: Bart Van Assche <bart.vanassche@....com>
Signed-off-by: Jason Gunthorpe <jgg@...lanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/infiniband/ulp/srpt/ib_srpt.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -1991,7 +1991,7 @@ static int srpt_cm_req_recv(struct ib_cm
 		goto destroy_ib;
 	}
 
-	guid = (__be16 *)&param->primary_path->sgid.global.interface_id;
+	guid = (__be16 *)&param->primary_path->dgid.global.interface_id;
 	snprintf(ch->ini_guid, sizeof(ch->ini_guid), "%04x:%04x:%04x:%04x",
 		 be16_to_cpu(guid[0]), be16_to_cpu(guid[1]),
 		 be16_to_cpu(guid[2]), be16_to_cpu(guid[3]));