Messages in this thread | | | Subject | Re: [PATCH 0/2] Allow bpf_user_ringbuf_drain() callbacks to return 1 | From | patchwork-bot+netdevbpf@kernel ... | Date | Thu, 13 Oct 2022 15:40:16 +0000 |
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Hello:
This series was applied to bpf/bpf.git (master) by Andrii Nakryiko <andrii@kernel.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
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