linux-kernel - Re: [PATCH 0/2] Allow bpf_user_ringbuf

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Message-Id: <166567561608.22924.7276455354921254094.git-patchwork-notify@kernel.org>
Date:   Thu, 13 Oct 2022 15:40:16 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     David Vernet <void@...ifault.com>
Cc:     bpf@...r.kernel.org, andrii@...nel.org, ast@...nel.org,
        martin.lau@...ux.dev, daniel@...earbox.net, song@...nel.org,
        yhs@...com, john.fastabend@...il.com, kpsingh@...nel.org,
        sdf@...gle.com, haoluo@...gle.com, jolsa@...nel.org,
        linux-kernel@...r.kernel.org, kernel-team@...com
Subject: Re: [PATCH 0/2] Allow bpf_user_ringbuf_drain() callbacks to return 1

Hello:

This series was applied to bpf/bpf.git (master)
by Andrii Nakryiko <andrii@...nel.org>:

On Wed, 12 Oct 2022 18:20:13 -0500 you wrote:
> The bpf_user_ringbuf_drain() helper function allows a BPF program to
> specify a callback that is invoked when draining entries from a
> BPF_MAP_TYPE_USER_RINGBUF ring buffer map. The API is meant to allow the
> callback to return 0 if it wants to continue draining samples, and 1 if
> it's done draining. Unfortunately, bpf_user_ringbuf_drain() landed shortly
> after commit 1bfe26fb0827 ("bpf: Add verifier support for custom
> callback return range"), which changed the default behavior of callbacks
> to only support returning 0, and the corresponding necessary change to
> bpf_user_ringbuf_drain() callbacks was missed.
> 
> [...]

Here is the summary with links:
  - [1/2] bpf: Allow bpf_user_ringbuf_drain() callbacks to return 1
    https://git.kernel.org/bpf/bpf/c/c92a7a522438
  - [2/2] selftests/bpf: Make bpf_user_ringbuf_drain() selftest callback return 1
    https://git.kernel.org/bpf/bpf/c/6e44b9f375a3

You are awesome, thank you!
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