netdev - Re: [PATCH v3 bpf-next 1/2] bpf: include sub program tags in bpf_prog

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Message-ID: <b9e3d094-4086-3edd-73a6-9a40efb14645@iogearbox.net>
Date:   Thu, 13 Dec 2018 12:26:15 +0100
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Song Liu <songliubraving@...com>, netdev@...r.kernel.org
Cc:     ast@...nel.org, kernel-team@...com
Subject: Re: [PATCH v3 bpf-next 1/2] bpf: include sub program tags in
 bpf_prog_info

On 12/12/2018 06:37 PM, Song Liu wrote:
> Changes v2 -> v3:
> 1. remove check for bpf_dump_raw_ok().
> 
> Changes v1 -> v2:
> 1. Fix error path as Martin suggested.
> 
> This patch adds nr_prog_tags and prog_tags to bpf_prog_info. This is a
> reliable way for user space to get tags of all sub programs. Before this
> patch, user space need to find sub program tags via kallsyms.
> 
> This feature will be used in BPF introspection, where user space queries
> information about BPF programs via sys_bpf.
> 
> Signed-off-by: Song Liu <songliubraving@...com>

Looks better, applied, thanks!