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Fri, 18 Sep 2026 10:51:01 -0700 (PDT) Content-Type: text/plain; charset=UTF-8 Date: Fri, 18 Sep 2026 17:51:01 +0000 Message-Id: Cc: "Yonghong Song" , "Quentin Monnet" , "Martin KaFai Lau" , "Song Liu" , "Jiri Olsa" , "Emil Tsalapatis" , "Ihor Solodrai" , "Shuah Khan" , , Subject: Re: [PATCH bpf 1/3] bpf: Report BPF_F_PREORDER in cgroup program queries From: "Alexei Starovoitov" To: "Hui Su" , , "Daniel Borkmann" , "Andrii Nakryiko" , "Eduard Zingerman" , "Kumar Kartikeya Dwivedi" In-Reply-To: <20260918172407.3459188-2-sh_def@163.com> References: <20260918172407.3459188-1-sh_def@163.com> <20260918172407.3459188-2-sh_def@163.com> X-Mailer: mkdraft (claude review draft; edit before sending) Content-Transfer-Encoding: 8bit Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Sat, Sep 19, 2026 at 02:24 AM Hui Su wrote: > As a result, user space tools and query callers cannot distinguish > pre-ordered programs from standard multi-prog attachments via > BPF_PROG_QUERY. [...] > Fixes: 4b82b181a26c ("bpf: Allow pre-ordering for bpf cgroup progs") That's not a fix. Nothing is broken. The patch changes what BPF_PROG_QUERY returns to user space and existing bpftool will start printing "unknown(42)" for such progs. That shouldn't go to stable. Drop the Fixes tag and resend the series for bpf-next. pw-bot: cr