Re: [PATCH 0/2] Allow bpf_user_ringbuf_drain() callbacks to return 1
From: patchwork-bot+netdevbpf
Date: Thu Oct 13 2022 - 11:42:27 EST
Hello:
This series was applied to bpf/bpf.git (master)
by Andrii Nakryiko <andrii@xxxxxxxxxx>:
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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