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Date:   Fri, 8 May 2020 07:45:40 -0700
From:   Eric Dumazet <>
To:     Kelly Littlepage <>,
Subject: Re: [PATCH v3] net: tcp: fix rx timestamp behavior for tcp_recvmsg

On 5/8/20 7:23 AM, Kelly Littlepage wrote:
> The stated intent of the original commit is to is to "return the timestamp
> corresponding to the highest sequence number data returned." The current
> implementation returns the timestamp for the last byte of the last fully
> read skb, which is not necessarily the last byte in the recv buffer. This
> patch converts behavior to the original definition, and to the behavior of
> the previous draft versions of commit 98aaa913b4ed ("tcp: Extend
> SOF_TIMESTAMPING_RX_SOFTWARE to TCP recvmsg") which also match this
> behavior.
> Fixes: 98aaa913b4ed ("tcp: Extend SOF_TIMESTAMPING_RX_SOFTWARE to TCP recvmsg")
> Co-developed-by: Iris Liu <>
> Signed-off-by: Iris Liu <>
> Signed-off-by: Kelly Littlepage <>
> ---
> Reverted to the original subject line

SGTM, thanks.

Signed-off-by: Eric Dumazet <>

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