netdev - Re: [PATCH net] net: don't let netpoll invoke NAPI if in xmit context

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Date:   Sun, 02 Apr 2023 12:30:17 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     davem@...emloft.net, netdev@...r.kernel.org, edumazet@...gle.com,
        pabeni@...hat.com, roman.gushchin@...ux.dev, leitao@...ian.org,
        shemminger@...ux.foundation.org
Subject: Re: [PATCH net] net: don't let netpoll invoke NAPI if in xmit context

Hello:

This patch was applied to netdev/net.git (main)
by David S. Miller <davem@...emloft.net>:

On Thu, 30 Mar 2023 19:21:44 -0700 you wrote:
> Commit 0db3dc73f7a3 ("[NETPOLL]: tx lock deadlock fix") narrowed
> down the region under netif_tx_trylock() inside netpoll_send_skb().
> (At that point in time netif_tx_trylock() would lock all queues of
> the device.) Taking the tx lock was problematic because driver's
> cleanup method may take the same lock. So the change made us hold
> the xmit lock only around xmit, and expected the driver to take
> care of locking within ->ndo_poll_controller().
> 
> [...]

Here is the summary with links:
  - [net] net: don't let netpoll invoke NAPI if in xmit context
    https://git.kernel.org/netdev/net/c/275b471e3d2d

You are awesome, thank you!
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