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From: Leon Hwang <leon.hwang@linux.dev>
To: Tiezhu Yang <yangtiezhu@loongson.cn>,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Andrii Nakryiko <andrii@kernel.org>
Cc: Puranjay Mohan <puranjay@kernel.org>,
	loongarch@lists.linux.dev, bpf@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH bpf-next v2] bpf: Fix unaligned interpreter panic on JIT fallback path
Date: Thu, 11 Jun 2026 18:23:42 +0800	[thread overview]
Message-ID: <aede5a4b-7325-47fc-8947-1c8307f10665@linux.dev> (raw)
In-Reply-To: <20260611101216.30153-1-yangtiezhu@loongson.cn>

On 11/6/26 18:12, Tiezhu Yang wrote:
[...]
> +/* Fix up helper call offsets for inlined helpers on JIT fallback path. */
> +static void bpf_fixup_fallback_inline_helpers(struct bpf_verifier_env *env, struct bpf_prog *fp)
> +{
> +	struct bpf_insn *insn = fp->insnsi;
> +	const struct bpf_func_proto *fn;
> +	int i;
> +
> +	if (!env || !env->ops->get_func_proto)
> +		return;
> +
> +	for (i = 0; i < fp->len; i++, insn++) {
> +		if (insn->code == (BPF_JMP | BPF_CALL) && insn->src_reg == 0) {

NIT: better to use bpf_helper_call() here.

Other than that, lgtm:

Acked-by: Leon Hwang <leon.hwang@linux.dev>

> [...]

  reply	other threads:[~2026-06-11 10:23 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-11 10:12 [PATCH bpf-next v2] bpf: Fix unaligned interpreter panic on JIT fallback path Tiezhu Yang
2026-06-11 10:23 ` Leon Hwang [this message]
2026-06-11 10:54 ` bot+bpf-ci
2026-06-11 11:28   ` Tiezhu Yang

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