From: patchwork-bot+netdevbpf@kernel.org
To: Puranjay Mohan <puranjay@kernel.org>
Cc: bpf@vger.kernel.org, ast@kernel.org, daniel@iogearbox.net,
andrii@kernel.org, martin.lau@linux.dev, eddyz87@gmail.com,
memxor@gmail.com, song@kernel.org, yonghong.song@linux.dev
Subject: Re: [PATCH bpf-next v2 0/2] bpf: Fix loop detection for re-arming async callbacks
Date: Thu, 24 Sep 2026 21:30:08 +0000 [thread overview]
Message-ID: <179028540814.2209702.10043434568520924501.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260924162609.1746610-1-puranjay@kernel.org>
Hello:
This series was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov <ast@kernel.org>:
On Thu, 24 Sep 2026 09:26:05 -0700 you wrote:
> Changelog:
> v1: https://lore.kernel.org/all/20260923140152.4005097-1-puranjay@kernel.org/
> Changes in v2:
> - Patch 1: also fix push_callback_call(), which numbered a new entry
> from the caller frame. When the callback re-arms from a subprog that
> frame is not frame 0 and its count is 0, so every entry was numbered 1,
> is_state_visited() never saw a difference, and a loop in such a
> callback was still rejected.
> - Patch 2: loop_cb() now re-arms through a __noinline subprog, so the
> caller frame at bpf_timer_set_callback() is not the callback's own
> frame. The v1 test re-armed from frame 0 and passed without the
> push_callback_call() fix.
>
> [...]
Here is the summary with links:
- [bpf-next,v2,1/2] bpf: Look at frame 0 when telling async callback entries apart
https://git.kernel.org/bpf/bpf-next/c/e55220162aae
- [bpf-next,v2,2/2] selftests/bpf: Add timer tests for a re-arming callback with a loop
https://git.kernel.org/bpf/bpf-next/c/84bff37db2ad
You are awesome, thank you!
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prev parent reply other threads:[~2026-09-24 21:31 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-24 16:26 [PATCH bpf-next v2 0/2] bpf: Fix loop detection for re-arming async callbacks Puranjay Mohan
2026-09-24 16:26 ` [PATCH bpf-next v2 1/2] bpf: Look at frame 0 when telling async callback entries apart Puranjay Mohan
2026-09-24 17:09 ` bot+bpf-ci
2026-09-24 16:26 ` [PATCH bpf-next v2 2/2] selftests/bpf: Add timer tests for a re-arming callback with a loop Puranjay Mohan
2026-09-24 21:30 ` patchwork-bot+netdevbpf [this message]
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