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Date: Sat, 23 Oct 2021 06:05:22 +0000 From: "zhudi (E)" <zhudi2@...wei.com> To: Alexei Starovoitov <alexei.starovoitov@...il.com> CC: "David S. Miller" <davem@...emloft.net>, Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, Andrii Nakryiko <andrii@...nel.org>, Martin KaFai Lau <kafai@...com>, Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>, John Fastabend <john.fastabend@...il.com>, KP Singh <kpsingh@...nel.org>, Jakub Sitnicki <jakub@...udflare.com>, bpf <bpf@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org> Subject: Re: [PATCH] bpf: support BPF_PROG_QUERY for progs attached to sockmap > On Fri, Oct 22, 2021 at 3:34 AM Di Zhu <zhudi2@...wei.com> wrote: > > > > Right now there is no way to query whether BPF programs are > > attached to a sockmap or not. > > > > we can use the standard interface in libbpf to query, such as: > > bpf_prog_query(mapFd, BPF_SK_SKB_STREAM_PARSER, 0, NULL, ...); > > the mapFd is the fd of sockmap. > > > > Signed-off-by: Di Zhu <zhudi2@...wei.com> > > The feature looks fine, but it needs a selftest. I will add it in my patch, thanks
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