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Date:   Fri, 13 May 2022 11:30:13 +0000
To:     Robert Hancock <>
Subject: Re: [PATCH net-next v7 1/2] net: axienet: Be more careful about updating


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

On Thu, 12 May 2022 11:18:52 -0600 you wrote:
> The axienet_start_xmit function was updating the tx_bd_tail variable
> multiple times, with potential rollbacks on error or invalid
> intermediate positions, even though this variable is also used in the
> TX completion path. Use READ_ONCE where this variable is read and
> WRITE_ONCE where it is written to make this update more atomic, and
> move the write before the MMIO write to start the transfer, so it is
> protected by that implicit write barrier.
> [...]

Here is the summary with links:
  - [net-next,v7,1/2] net: axienet: Be more careful about updating tx_bd_tail
  - [net-next,v7,2/2] net: axienet: Use NAPI for TX completion path

You are awesome, thank you!
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