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From: patchwork-bot+netdevbpf@kernel•org
To: Philo Lu <lulie@linux•alibaba.com>
Cc: bpf@vger•kernel.org, edumazet@google•com, rostedt@goodmis•org,
	mhiramat@kernel•org, mathieu.desnoyers@efficios•com,
	martin.lau@linux•dev, ast@kernel•org, daniel@iogearbox•net,
	andrii@kernel•org, eddyz87@gmail•com, song@kernel•org,
	yonghong.song@linux•dev, john.fastabend@gmail•com,
	kpsingh@kernel•org, sdf@fomichev•me, haoluo@google•com,
	jolsa@kernel•org, davem@davemloft•net, kuba@kernel•org,
	pabeni@redhat•com, mykolal@fb•com, shuah@kernel•org,
	mcoquelin.stm32@gmail•com, alexandre.torgue@foss•st.com,
	thinker.li@gmail•com, juntong.deng@outlook•com, jrife@google•com,
	alan.maguire@oracle•com, davemarchevsky@fb•com, dxu@dxuuu•xyz,
	vmalik@redhat•com, cupertino.miranda@oracle•com,
	mattbobrowski@google•com, xuanzhuo@linux•alibaba.com,
	netdev@vger•kernel.org, linux-trace-kernel@vger•kernel.org
Subject: Re: [PATCH bpf-next v3 0/5] bpf: Allow skb dynptr for tp_btf
Date: Wed, 11 Sep 2024 17:30:32 +0000	[thread overview]
Message-ID: <172607583276.994220.12802097721316207371.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20240911033719.91468-1-lulie@linux.alibaba.com>

Hello:

This series was applied to bpf/bpf-next.git (net)
by Martin KaFai Lau <martin.lau@kernel•org>:

On Wed, 11 Sep 2024 11:37:14 +0800 you wrote:
> This makes bpf_dynptr_from_skb usable for tp_btf, so that we can easily
> parse skb in tracepoints. This has been discussed in [0], and Martin
> suggested to use dynptr (instead of helpers like bpf_skb_load_bytes).
> 
> For safety, skb dynptr shouldn't be used in fentry/fexit. This is achieved
> by add KF_TRUSTED_ARGS flag in bpf_dynptr_from_skb defination, because
> pointers passed by tracepoint are trusted (PTR_TRUSTED) while those of
> fentry/fexit are not.
> 
> [...]

Here is the summary with links:
  - [bpf-next,v3,1/5] bpf: Support __nullable argument suffix for tp_btf
    https://git.kernel.org/bpf/bpf-next/c/8aeaed21befc
  - [bpf-next,v3,2/5] selftests/bpf: Add test for __nullable suffix in tp_btf
    https://git.kernel.org/bpf/bpf-next/c/2060f07f861a
  - [bpf-next,v3,3/5] tcp: Use skb__nullable in trace_tcp_send_reset
    https://git.kernel.org/bpf/bpf-next/c/edd3f6f7588c
  - [bpf-next,v3,4/5] bpf: Allow bpf_dynptr_from_skb() for tp_btf
    https://git.kernel.org/bpf/bpf-next/c/ffc83860d8c0
  - [bpf-next,v3,5/5] selftests/bpf: Expand skb dynptr selftests for tp_btf
    https://git.kernel.org/bpf/bpf-next/c/83dff601715b

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html



      parent reply	other threads:[~2024-09-11 17:30 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-11  3:37 [PATCH bpf-next v3 0/5] bpf: Allow skb dynptr for tp_btf Philo Lu
2024-09-11  3:37 ` [PATCH bpf-next v3 1/5] bpf: Support __nullable argument suffix " Philo Lu
2024-09-11 17:30   ` Martin KaFai Lau
2024-09-11  3:37 ` [PATCH bpf-next v3 2/5] selftests/bpf: Add test for __nullable suffix in tp_btf Philo Lu
2024-09-11  3:37 ` [PATCH bpf-next v3 3/5] tcp: Use skb__nullable in trace_tcp_send_reset Philo Lu
2024-09-11  3:37 ` [PATCH bpf-next v3 4/5] bpf: Allow bpf_dynptr_from_skb() for tp_btf Philo Lu
2024-09-11  3:37 ` [PATCH bpf-next v3 5/5] selftests/bpf: Expand skb dynptr selftests " Philo Lu
2024-09-11 17:33   ` Martin KaFai Lau
2024-09-11 17:30 ` patchwork-bot+netdevbpf [this message]

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