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Date: Tue, 8 Jul 2025 16:30:09 -0700
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Subject: Re: [PATCH v4 bpf-next 02/12] bpf: tcp: Make sure iter->batch always
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From: Martin KaFai Lau <martin.lau@linux.dev>
To: Jordan Rife <jordan@jrife.io>
Cc: Daniel Borkmann <daniel@iogearbox.net>,
 Willem de Bruijn <willemdebruijn.kernel@gmail.com>,
 Kuniyuki Iwashima <kuniyu@google.com>,
 Alexei Starovoitov <alexei.starovoitov@gmail.com>,
 Stanislav Fomichev <stfomichev@gmail.com>, netdev@vger.kernel.org,
 bpf@vger.kernel.org
References: <20250707155102.672692-1-jordan@jrife.io>
 <20250707155102.672692-3-jordan@jrife.io>
 <88507f09-b422-4991-90a8-1b8cedc07d86@linux.dev>
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On 7/8/25 4:16 PM, Martin KaFai Lau wrote:
> 
> How about directly figuring out the next start_sk here?
> The next start_sk should be the sk_nulls_next() of the
> iter->batch[iter->end_sk - 1]?

I take it back. iter->batch[iter->end_sk - 1] is not enough. It still needs to 
do the seq_sk_match() test. I can't think of a better way. Agree to keep your 
current approach.