From: Potnuri Bharat Teja <bharat@chelsio.com>
Date: Mon, 8 Jul 2019 15:22:00 +0530
Subject: [PATCH] nvme-tcp: Use protocol specific operations while reading
 socket
References: bsc#1156419,jsc#SLE-8281
Git-commit: 10407ec9b42d30a6ebc49f7f84e2bb2131438699
Patch-mainline: v5.4-rc1

Using socket specific read_sock() calls instead of directly calling
tcp_read_sock() helps lld module registered handlers if any, to be called
from nvme-tcp host.
This patch therefore replaces the tcp_read_sock() with socket specific
prot_ops.

Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com>
Acked-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
 drivers/nvme/host/tcp.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index 06393ea6a335..2744652171fe 100644
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -1018,14 +1018,15 @@ static int nvme_tcp_try_send(struct nvme_tcp_queue *queue)
 
 static int nvme_tcp_try_recv(struct nvme_tcp_queue *queue)
 {
-	struct sock *sk = queue->sock->sk;
+	struct socket *sock = queue->sock;
+	struct sock *sk = sock->sk;
 	read_descriptor_t rd_desc;
 	int consumed;
 
 	rd_desc.arg.data = queue;
 	rd_desc.count = 1;
 	lock_sock(sk);
-	consumed = tcp_read_sock(sk, &rd_desc, nvme_tcp_recv_skb);
+	consumed = sock->ops->read_sock(sk, &rd_desc, nvme_tcp_recv_skb);
 	release_sock(sk);
 	return consumed;
 }
-- 
2.16.4