From: patchwork-bot+netdevbpf@kernel.org
To: Chen Pei <cp0613@linux.alibaba.com>
Cc: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org,
memxor@gmail.com, bjorn@kernel.org, puranjay@kernel.org,
ihor.solodrai@linux.dev, eddyz87@gmail.com, martin.lau@linux.dev,
song@kernel.org, yonghong.song@linux.dev, jolsa@kernel.org,
emil@etsalapatis.com, pulehui@huawei.com, pjw@kernel.org,
palmer@dabbelt.com, shuah@kernel.org, guoren@kernel.org,
bpf@vger.kernel.org, linux-riscv@lists.infradead.org,
linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH bpf-next v3 0/2] bpf, riscv: Add support for signed arena loads
Date: Tue, 25 Aug 2026 13:30:09 +0000 [thread overview]
Message-ID: <178766460914.3460835.2556196507996630304.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <cover.1787140923.git.cp0613@linux.alibaba.com>
Hello:
This series was applied to bpf/bpf-next.git (master)
by Kumar Kartikeya Dwivedi <memxor@gmail.com>:
On Wed, 19 Aug 2026 20:09:22 +0800 you wrote:
> Hi,
>
> Signed loads from arena memory are currently unsupported on riscv64:
> bpf_jit_supports_insn() rejects BPF_MEMSX loads when in_arena is set,
> so the verifier fails such programs with "sign extending loads from
> arena are not supported yet". The x86 and arm64 JITs gained support
> for them in v6.18 (a91ae3c89311, eab2a71f3a6a). Since compilers are
> free to generate signed loads into arena memory (e.g. GCC-14 was
> reported to do so), otherwise valid BPF programs fail to load on
> riscv64.
>
> [...]
Here is the summary with links:
- [bpf-next,v3,1/2] bpf, riscv: Add support for signed arena loads
https://git.kernel.org/bpf/bpf-next/c/b4757714cc63
- [bpf-next,v3,2/2] selftests/bpf: Enable arena LDSX tests for riscv64
https://git.kernel.org/bpf/bpf-next/c/8f2087a1b43b
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
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prev parent reply other threads:[~2026-08-25 13:31 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-19 12:09 Chen Pei
2026-08-19 12:09 ` [PATCH bpf-next v3 1/2] " Chen Pei
2026-08-20 4:12 ` Pu Lehui
2026-08-19 12:09 ` [PATCH bpf-next v3 2/2] selftests/bpf: Enable arena LDSX tests for riscv64 Chen Pei
2026-08-20 4:12 ` Pu Lehui
2026-08-25 13:16 ` [PATCH bpf-next v3 0/2] bpf, riscv: Add support for signed arena loads Björn Töpel
2026-08-25 13:30 ` patchwork-bot+netdevbpf [this message]
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