From: Yonghong Song <yonghong.song@linux.dev>
To: Andrii Nakryiko <andrii@kernel.org>,
bpf@vger.kernel.org, ast@kernel.org, daniel@iogearbox.net,
martin.lau@kernel.org
Cc: kernel-team@meta.com,
syzbot+148110ee7cf72f39f33e@syzkaller.appspotmail.com
Subject: Re: [PATCH v2 bpf-next 2/2] selftests/bpf: add fp-leaking precise subprog result tests
Date: Thu, 4 Apr 2024 17:51:49 -0700 [thread overview]
Message-ID: <f7fd3183-e305-44da-a39d-6cef4495e207@linux.dev> (raw)
In-Reply-To: <20240404214536.3551295-2-andrii@kernel.org>
On 4/4/24 2:45 PM, Andrii Nakryiko wrote:
> Add selftests validating that BPF verifier handles precision marking
> for SCALAR registers derived from r10 (fp) register correctly.
>
> Given `r0 = (s8)r10;` syntax is not supported by older Clang compilers,
> use the raw BPF instruction syntax to maximize compatibility.
>
> Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
next prev parent reply other threads:[~2024-04-05 0:51 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-04 21:45 [PATCH v2 bpf-next 1/2] bpf: prevent r10 register from being marked as precise Andrii Nakryiko
2024-04-04 21:45 ` [PATCH v2 bpf-next 2/2] selftests/bpf: add fp-leaking precise subprog result tests Andrii Nakryiko
2024-04-05 0:51 ` Yonghong Song [this message]
2024-04-05 0:34 ` [PATCH v2 bpf-next 1/2] bpf: prevent r10 register from being marked as precise Yonghong Song
2024-04-05 1:40 ` patchwork-bot+netdevbpf
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