linux-kernel - [PATCH net-next] drivers/net/wan/x25_asy: Remove an unnecessary x25_type

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Message-Id: <20200912021807.365158-1-xie.he.0141@gmail.com>
Date:   Fri, 11 Sep 2020 19:18:07 -0700
From:   Xie He <xie.he.0141@...il.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Xie He <xie.he.0141@...il.com>, Martin Schiller <ms@....tdt.de>
Subject: [PATCH net-next] drivers/net/wan/x25_asy: Remove an unnecessary x25_type_trans call

x25_type_trans only needs to be called before we call netif_rx to pass
the skb to upper layers.

It does not need to be called before lapb_data_received. The LAPB module
does not need the fields that are set by calling it.

In the other two X.25 drivers - lapbether and hdlc_x25. x25_type_trans
is only called before netif_rx and not before lapb_data_received.

Cc: Martin Schiller <ms@....tdt.de>
Signed-off-by: Xie He <xie.he.0141@...il.com>
---
 drivers/net/wan/x25_asy.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/wan/x25_asy.c b/drivers/net/wan/x25_asy.c
index 5a7cf8bf9d0d..ab56a5e6447a 100644
--- a/drivers/net/wan/x25_asy.c
+++ b/drivers/net/wan/x25_asy.c
@@ -202,8 +202,7 @@ static void x25_asy_bump(struct x25_asy *sl)
 		return;
 	}
 	skb_put_data(skb, sl->rbuff, count);
-	skb->protocol = x25_type_trans(skb, sl->dev);
-	err = lapb_data_received(skb->dev, skb);
+	err = lapb_data_received(sl->dev, skb);
 	if (err != LAPB_OK) {
 		kfree_skb(skb);
 		printk(KERN_DEBUG "x25_asy: data received err - %d\n", err);
-- 
2.25.1