netdev - Re: [PATCH bpf] bpf, sockmap: Fix map type error in sock_map_del

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Date: Mon, 31 Jul 2023 18:19:41 -0700
From: Martin KaFai Lau <martin.lau@...ux.dev>
To: Xu Kuohai <xukuohai@...weicloud.com>,
 John Fastabend <john.fastabend@...il.com>
Cc: bpf@...r.kernel.org, netdev@...r.kernel.org,
 Jakub Sitnicki <jakub@...udflare.com>, "David S . Miller"
 <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 Daniel Borkmann <daniel@...earbox.net>
Subject: Re: [PATCH bpf] bpf, sockmap: Fix map type error in sock_map_del_link

On 7/28/23 3:56 AM, Xu Kuohai wrote:
> sock_map_del_link() operates on both SOCKMAP and SOCKHASH, although
> both types have member named "progs", the offset of "progs" member in
> these two types is different, so "progs" should be accessed with the
> real map type.

The patch makes sense to me. Can a test be written to trigger it?

John, please review.