netdev - [PATCH rdma-next v4 8/8] RDMA/rxe: Replace l

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Date:   Sun, 23 Apr 2023 22:48:22 +0800
From:   Zhu Yanjun <yanjun.zhu@...el.com>
To:     jgg@...pe.ca, leon@...nel.org, zyjzyj2000@...il.com,
        linux-rdma@...r.kernel.org, parav@...dia.com,
        netdev@...r.kernel.org, rain.1986.08.12@...il.com
Cc:     Zhu Yanjun <yanjun.zhu@...ux.dev>
Subject: [PATCH rdma-next v4 8/8] RDMA/rxe: Replace l_sk6 with sk6 in net namespace

From: Zhu Yanjun <yanjun.zhu@...ux.dev>

The net namespace variable sk6 can be used. As such, l_sk6 can be
replaced with it.

Tested-by: Rain River <rain.1986.08.12@...il.com>
Signed-off-by: Zhu Yanjun <yanjun.zhu@...ux.dev>
---
 drivers/infiniband/sw/rxe/rxe.c       |  1 -
 drivers/infiniband/sw/rxe/rxe_net.c   | 20 +-------------------
 drivers/infiniband/sw/rxe/rxe_verbs.h |  1 -
 3 files changed, 1 insertion(+), 21 deletions(-)

diff --git a/drivers/infiniband/sw/rxe/rxe.c b/drivers/infiniband/sw/rxe/rxe.c
index 96841c56ff3a..b1dfba2fdf15 100644
--- a/drivers/infiniband/sw/rxe/rxe.c
+++ b/drivers/infiniband/sw/rxe/rxe.c
@@ -75,7 +75,6 @@ static void rxe_init_device_param(struct rxe_dev *rxe)
 			rxe->ndev->dev_addr);
 
 	rxe->max_ucontext			= RXE_MAX_UCONTEXT;
-	rxe->l_sk6				= NULL;
 }
 
 /* initialize port attributes */
diff --git a/drivers/infiniband/sw/rxe/rxe_net.c b/drivers/infiniband/sw/rxe/rxe_net.c
index 28d8171a36e8..812a0731bece 100644
--- a/drivers/infiniband/sw/rxe/rxe_net.c
+++ b/drivers/infiniband/sw/rxe/rxe_net.c
@@ -50,24 +50,6 @@ static struct dst_entry *rxe_find_route6(struct rxe_qp *qp,
 {
 	struct dst_entry *ndst;
 	struct flowi6 fl6 = { { 0 } };
-	struct rxe_dev *rdev;
-
-	rdev = rxe_get_dev_from_net(ndev);
-	if (!rdev->l_sk6) {
-		struct sock *sk;
-
-		rcu_read_lock();
-		sk = udp6_lib_lookup(dev_net(ndev), NULL, 0, &in6addr_any,
-				     htons(ROCE_V2_UDP_DPORT), 0);
-		rcu_read_unlock();
-		if (!sk) {
-			pr_info("file: %s +%d, error\n", __FILE__, __LINE__);
-			return (struct dst_entry *)sk;
-		}
-		__sock_put(sk);
-		rdev->l_sk6 = sk->sk_socket;
-	}
-
 
 	memset(&fl6, 0, sizeof(fl6));
 	fl6.flowi6_oif = ndev->ifindex;
@@ -76,7 +58,7 @@ static struct dst_entry *rxe_find_route6(struct rxe_qp *qp,
 	fl6.flowi6_proto = IPPROTO_UDP;
 
 	ndst = ipv6_stub->ipv6_dst_lookup_flow(dev_net(ndev),
-					       rdev->l_sk6->sk, &fl6,
+					       rxe_ns_pernet_sk6(dev_net(ndev)), &fl6,
 					       NULL);
 	if (IS_ERR(ndst)) {
 		rxe_dbg_qp(qp, "no route to %pI6\n", daddr);
diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.h b/drivers/infiniband/sw/rxe/rxe_verbs.h
index 0aa3817770a5..26a20f088692 100644
--- a/drivers/infiniband/sw/rxe/rxe_verbs.h
+++ b/drivers/infiniband/sw/rxe/rxe_verbs.h
@@ -382,7 +382,6 @@ struct rxe_dev {
 
 	struct rxe_port		port;
 	struct crypto_shash	*tfm;
-	struct socket		*l_sk6;
 };
 
 static inline void rxe_counter_inc(struct rxe_dev *rxe, enum rxe_counters index)
-- 
2.27.0