From: patchwork-bot+netdevbpf@kernel.org
To: Song Liu <song@kernel.org>
Cc: bpf@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org,
puranjay@kernel.org, xukuohai@huaweicloud.com,
kernel-team@meta.com, leitao@debian.org
Subject: Re: [PATCH bpf-next] bpf: arm64: Silent "UBSAN: negation-overflow" warning
Date: Sun, 23 Feb 2025 21:10:30 +0000 [thread overview]
Message-ID: <174034503027.2621534.7543015920062890065.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20250218080240.2431257-1-song@kernel.org>
Hello:
This patch was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov <ast@kernel.org>:
On Tue, 18 Feb 2025 00:02:40 -0800 you wrote:
> With UBSAN, test_bpf.ko triggers warnings like:
>
> UBSAN: negation-overflow in arch/arm64/net/bpf_jit_comp.c:1333:28
> negation of -2147483648 cannot be represented in type 's32' (aka 'int'):
>
> Silent these warnings by casting imm to u32 first.
>
> [...]
Here is the summary with links:
- [bpf-next] bpf: arm64: Silent "UBSAN: negation-overflow" warning
https://git.kernel.org/bpf/bpf-next/c/239860828f86
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
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prev parent reply other threads:[~2025-02-23 21:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-18 8:02 [PATCH bpf-next] bpf: arm64: Silent "UBSAN: negation-overflow" warning Song Liu
2025-02-20 12:34 ` Xu Kuohai
2025-02-20 16:05 ` Song Liu
2025-02-21 9:39 ` Breno Leitao
2025-02-23 21:10 ` patchwork-bot+netdevbpf [this message]
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