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From: Shmulik Ladkani <shmulik.ladkani@gmail.com>
To: Joanne Koong <joannelkoong@gmail.com>
Cc: bpf@vger.kernel.org, daniel@iogearbox.net, martin.lau@kernel.org,
	andrii@kernel.org, ast@kernel.org, Kernel-team@fb.com,
	Eyal Birger <eyal.birger@gmail.com>
Subject: Re: [PATCH bpf-next v1 5/8] bpf: Add bpf_dynptr_clone
Date: Sat, 10 Sep 2022 08:31:18 +0300	[thread overview]
Message-ID: <20220910083118.6591eca8@blondie> (raw)
In-Reply-To: <CAJnrk1a53F=LLaU+gdmXGcZBBeUR-anALT3iO6pyHKiZpD0cNw@mail.gmail.com>

On Fri, 9 Sep 2022 15:18:57 -0700 Joanne Koong <joannelkoong@gmail.com> wrote:

> I like the idea, where 'off' is an offset from ptr's offset and 'len'
> is the number of bytes to trim.

Actually parameters better be 'from' (inclusive) and 'to' (exclusive),
similar to slicing in most languages. Specifying a negative 'to' provides
the trimming functionality.

> Btw, I will be traveling for the next ~6 weeks and won't have access
> to a computer, so v2 will be sometime after that.

Enjoy

  reply	other threads:[~2022-09-10  5:31 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-08  0:02 [PATCH bpf-next v1 0/8] Dynptr convenience helpers Joanne Koong
2022-09-08  0:02 ` [PATCH bpf-next v1 1/8] bpf: Add bpf_dynptr_data_rdonly Joanne Koong
2022-09-09 15:29   ` Song Liu
2022-09-09 15:32     ` Alexei Starovoitov
2022-09-09 15:59       ` Song Liu
2022-09-09 15:51   ` Shmulik Ladkani
2022-09-08  0:02 ` [PATCH bpf-next v1 2/8] bpf: Add bpf_dynptr_trim and bpf_dynptr_advance Joanne Koong
2022-09-09 15:32   ` Song Liu
2022-09-09 16:16   ` Shmulik Ladkani
2022-09-28 22:14   ` Andrii Nakryiko
2022-09-08  0:02 ` [PATCH bpf-next v1 3/8] bpf: Add bpf_dynptr_is_null and bpf_dynptr_is_rdonly Joanne Koong
2022-09-09 15:46   ` Song Liu
2022-09-09 21:28     ` Joanne Koong
2022-09-09 23:17       ` Song Liu
2022-09-08  0:02 ` [PATCH bpf-next v1 4/8] bpf: Add bpf_dynptr_get_size and bpf_dynptr_get_offset Joanne Koong
2022-09-09 16:52   ` Shmulik Ladkani
2022-09-09 20:37     ` Joanne Koong
2022-09-08  0:02 ` [PATCH bpf-next v1 5/8] bpf: Add bpf_dynptr_clone Joanne Koong
2022-09-09 16:41   ` Shmulik Ladkani
2022-09-09 22:18     ` Joanne Koong
2022-09-10  5:31       ` Shmulik Ladkani [this message]
2022-09-28 22:34         ` Andrii Nakryiko
2022-09-28 22:29   ` Andrii Nakryiko
2022-09-08  0:02 ` [PATCH bpf-next v1 6/8] bpf: Add verifier support for custom callback return range Joanne Koong
2022-09-08  0:02 ` [PATCH bpf-next v1 7/8] bpf: Add bpf_dynptr_iterator Joanne Koong
2022-09-19  0:07   ` Kumar Kartikeya Dwivedi
2022-09-28 22:47     ` Andrii Nakryiko
2022-09-28 22:41   ` Andrii Nakryiko
2022-09-29  0:31     ` Kumar Kartikeya Dwivedi
2022-09-29  0:43       ` Andrii Nakryiko
2022-10-02 16:45         ` Kumar Kartikeya Dwivedi
2022-10-03 18:39           ` Andrii Nakryiko
2022-09-08  0:02 ` [PATCH bpf-next v1 8/8] selftests/bpf: Tests for dynptr convenience helpers Joanne Koong

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