netdev - Re: [PATCH net v2 1/2] net/sched: Return NULL when htb_lookup

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Message-Id: 
 <175276442550.1962379.12116815931515333407.git-patchwork-notify@kernel.org>
Date: Thu, 17 Jul 2025 15:00:25 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: William Liu <will@...lsroot.io>
Cc: netdev@...r.kernel.org, jhs@...atatu.com, xiyou.wangcong@...il.com,
 pabeni@...hat.com, kuba@...nel.org, savy@...t3mfailure.io, jiri@...nulli.us,
 davem@...emloft.net, edumazet@...gle.com, horms@...nel.org
Subject: Re: [PATCH net v2 1/2] net/sched: Return NULL when htb_lookup_leaf
 encounters an empty rbtree

Hello:

This series was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Thu, 17 Jul 2025 02:28:38 +0000 you wrote:
> htb_lookup_leaf has a BUG_ON that can trigger with the following:
> 
> tc qdisc del dev lo root
> tc qdisc add dev lo root handle 1: htb default 1
> tc class add dev lo parent 1: classid 1:1 htb rate 64bit
> tc qdisc add dev lo parent 1:1 handle 2: netem
> tc qdisc add dev lo parent 2:1 handle 3: blackhole
> ping -I lo -c1 -W0.001 127.0.0.1
> 
> [...]

Here is the summary with links:
  - [net,v2,1/2] net/sched: Return NULL when htb_lookup_leaf encounters an empty rbtree
    https://git.kernel.org/netdev/net/c/0e1d5d9b5c59
  - [net,v2,2/2] selftests/tc-testing: Test htb_dequeue_tree with deactivation and row emptying
    https://git.kernel.org/netdev/net/c/88b06e4fb4bf

You are awesome, thank you!
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