[RFC PATCH 2/5] net: lorawan: Remove unused lrw_dev_hard_header function

[Jian-Hong Pan <starnight@g.ncu.edu.tw>]

The lorawan module is an abastraction layer over the LoRaWAN soft and
hard MAC.  It passes the original buffer to the real MAC layer.  So,
this patch removes the lrw_dev_hard_header function.

Signed-off-by: Jian-Hong Pan <starnight@g.ncu.edu.tw>
---
 net/lorawan/socket.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/net/lorawan/socket.c b/net/lorawan/socket.c
index 0ec2d2bf1682..9c0722379e25 100644
--- a/net/lorawan/socket.c
+++ b/net/lorawan/socket.c
@@ -115,14 +115,6 @@ dgram_bind(struct sock *sk, struct sockaddr *uaddr, int len)
 	return ret;
 }
 
-static int
-lrw_dev_hard_header(struct sk_buff *skb, struct net_device *ndev,
-		    const u32 src_devaddr, size_t len)
-{
-	/* TODO: Prepare the LoRaWAN sending header here */
-	return 0;
-}
-
 static int
 dgram_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
 {
@@ -176,10 +168,6 @@ dgram_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
 	skb_reserve(skb, hlen);
 	skb_reset_network_header(skb);
 
-	ret = lrw_dev_hard_header(skb, ndev, 0, size);
-	if (ret < 0)
-		goto dgram_sendmsg_no_skb;
-
 	ret = memcpy_from_msg(skb_put(skb, size), msg, size);
 	if (ret > 0)
 		goto dgram_sendmsg_err_skb;
-- 
2.20.1