Re: [RESEND PATCH] bpftool: Support use full prog name in prog subcommand

From: Tao Chen
Date: Wed Nov 02 2022 - 08:55:38 EST


在 2022/11/2 下午7:56, Quentin Monnet 写道:
2022-11-02 10:35 UTC+0800 ~ Tao Chen <chentao.kernel@xxxxxxxxxxxxxxxxx>
Now that the commit: <b662000aff84> ("bpftool: Adding support for BTF
program names") supported show the full prog name, we can also use
the full prog name more than 16 (BPF_OBJ_NAME_LEN) chars in prog
subcommand, such as "bpftool prog show name PROG_NAME".

Signed-off-by: Tao Chen <chentao.kernel@xxxxxxxxxxxxxxxxx>

Thanks! But you mean you want something like this, correct?

# ./bpftool prog pin \
name prog_with_a_very_long_name /sys/fs/bpf/foo

This is already possible since commit d55dfe587bc0 ("bpftool: Remove
BPF_OBJ_NAME_LEN restriction when looking up bpf program by name"). Your
first version of the patch was based on a version that didn't have this
commit, but bpftool from bpf-next already supports this.

Quentin
Yes, sorry my branch is a little behind,please ignore this patch, thank you for your reply!