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authorMartin KaFai Lau2022-03-02 11:55:44 -0800
committerDavid S. Miller2022-03-03 14:38:48 +0000
commitd93376f503c7a586707925957592c0f16f4db0b1 (patch)
tree471448c84414795f0981f2f99997220dadbc2b40 /include
parent27942a15209f564ed8ee2a9e126cb7b105181355 (diff)
net: Clear mono_delivery_time bit in __skb_tstamp_tx()
In __skb_tstamp_tx(), it may clone the egress skb and queues the clone to the sk_error_queue. The outgoing skb may have the mono delivery_time while the (rcv) timestamp is expected for the clone, so the skb->mono_delivery_time bit needs to be cleared from the clone. This patch adds the skb->mono_delivery_time clearing to the existing __net_timestamp() and use it in __skb_tstamp_tx(). The __net_timestamp() fast path usage in dev.c is changed to directly call ktime_get_real() since the mono_delivery_time bit is not set at that point. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/skbuff.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 7e2d796ece80..8e8a4af4f9e2 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3981,6 +3981,7 @@ static inline void skb_get_new_timestampns(const struct sk_buff *skb,
static inline void __net_timestamp(struct sk_buff *skb)
{
skb->tstamp = ktime_get_real();
+ skb->mono_delivery_time = 0;
}
static inline ktime_t net_timedelta(ktime_t t)