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Date:   Mon, 18 Jul 2022 10:40:16 +0000
To:     Jakub Kicinski <>
Subject: Re: [PATCH net-next v2 00/11] tls: rx: avoid skb_cow_data()


This series was applied to netdev/net-next.git (master)
by David S. Miller <>:

On Thu, 14 Jul 2022 22:22:24 -0700 you wrote:
> TLS calls skb_cow_data() on the skb it received from strparser
> whenever it needs to hold onto the skb with the decrypted data.
> (The alternative being decrypting directly to a user space buffer
> in whic case the input skb doesn't get modified or used after.)
> TLS needs the decrypted skb:
>  - almost always with TLS 1.3 (unless the new NoPad is enabled);
>  - when user space buffer is too small to fit the record;
>  - when BPF sockmap is enabled.
> [...]

Here is the summary with links:
  - [net-next,v2,01/11] tls: rx: allow only one reader at a time
  - [net-next,v2,02/11] tls: rx: don't try to keep the skbs always on the list
  - [net-next,v2,03/11] tls: rx: don't keep decrypted skbs on ctx->recv_pkt
  - [net-next,v2,04/11] tls: rx: remove the message decrypted tracking
  - [net-next,v2,05/11] tls: rx: factor out device darg update
  - [net-next,v2,06/11] tls: rx: read the input skb from ctx->recv_pkt
  - [net-next,v2,07/11] tls: rx: return the decrypted skb via darg
  - [net-next,v2,08/11] tls: rx: async: adjust record geometry immediately
  - [net-next,v2,09/11] tls: rx: async: hold onto the input skb
  - [net-next,v2,10/11] tls: rx: async: don't put async zc on the list
  - [net-next,v2,11/11] tls: rx: decrypt into a fresh skb

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