[PATCH net-next v3 01/14] net-timestamp: reorganize in skb_tstamp_tx_output()

[Jason Xing <kerneljasonxing@gmail.com>]

From: Jason Xing <kernelxing@tencent.com>

It's a prep for bpf print function later. This patch only puts the
original generating logic into one function, so that we integrate
bpf print easily. No functional changes here.

Signed-off-by: Jason Xing <kernelxing@tencent.com>
---
 net/core/skbuff.c | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 00afeb90c23a..1cf8416f4123 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -5539,18 +5539,15 @@ void skb_complete_tx_timestamp(struct sk_buff *skb,
 }
 EXPORT_SYMBOL_GPL(skb_complete_tx_timestamp);
 
-void __skb_tstamp_tx(struct sk_buff *orig_skb,
-		     const struct sk_buff *ack_skb,
-		     struct skb_shared_hwtstamps *hwtstamps,
-		     struct sock *sk, int tstype)
+static void skb_tstamp_tx_output(struct sk_buff *orig_skb,
+				 const struct sk_buff *ack_skb,
+				 struct skb_shared_hwtstamps *hwtstamps,
+				 struct sock *sk, int tstype)
 {
 	struct sk_buff *skb;
 	bool tsonly, opt_stats = false;
 	u32 tsflags;
 
-	if (!sk)
-		return;
-
 	tsflags = READ_ONCE(sk->sk_tsflags);
 	if (!hwtstamps && !(tsflags & SOF_TIMESTAMPING_OPT_TX_SWHW) &&
 	    skb_shinfo(orig_skb)->tx_flags & SKBTX_IN_PROGRESS)
@@ -5594,6 +5591,17 @@ void __skb_tstamp_tx(struct sk_buff *orig_skb,
 
 	__skb_complete_tx_timestamp(skb, sk, tstype, opt_stats);
 }
+
+void __skb_tstamp_tx(struct sk_buff *orig_skb,
+		     const struct sk_buff *ack_skb,
+		     struct skb_shared_hwtstamps *hwtstamps,
+		     struct sock *sk, int tstype)
+{
+	if (!sk)
+		return;
+
+	skb_tstamp_tx_output(orig_skb, ack_skb, hwtstamps, sk, tstype);
+}
 EXPORT_SYMBOL_GPL(__skb_tstamp_tx);
 
 void skb_tstamp_tx(struct sk_buff *orig_skb,
-- 
2.37.3