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-rw-r--r--net/ipv4/udp_offload.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index 06b3e2c1fcdc..9763464a75d7 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -224,6 +224,11 @@ struct sk_buff *__udp_gso_segment(struct sk_buff *gso_skb,
seg = segs;
uh = udp_hdr(seg);
+ /* preserve TX timestamp flags and TS key for first segment */
+ skb_shinfo(seg)->tskey = skb_shinfo(gso_skb)->tskey;
+ skb_shinfo(seg)->tx_flags |=
+ (skb_shinfo(gso_skb)->tx_flags & SKBTX_ANY_TSTAMP);
+
/* compute checksum adjustment based on old length versus new */
newlen = htons(sizeof(*uh) + mss);
check = csum16_add(csum16_sub(uh->check, uh->len), newlen);