linux-kernel - Re: [PATCH v2 bpf-next 1/2] tools/bpftool: use version from the kernel source tree

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Message-ID: <20171222130352.3c177d54@cakuba.netronome.com>
Date:   Fri, 22 Dec 2017 13:03:52 -0800
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Roman Gushchin <guro@...com>
Cc:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <kernel-team@...com>, Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>
Subject: Re: [PATCH v2 bpf-next 1/2] tools/bpftool: use version from the
 kernel source tree

On Fri, 22 Dec 2017 16:11:51 +0000, Roman Gushchin wrote:
> Bpftool determines it's own version based on the kernel
> version, which is picked from the linux/version.h header.
> 
> It's strange to use the version of the installed kernel
> headers, and makes much more sense to use the version
> of the actual source tree, where bpftool sources are.
> 
> Fix this by building kernelversion target and use
> the resulting string as bpftool version.
> 
> Example:
> before:
> 
> $ bpftool version
> bpftool v4.14.6
> 
> after:
> $ bpftool version
> bpftool v4.15.0-rc3
> 
> $bpftool version --json
> {"version":"4.15.0-rc3"}
> 
> Signed-off-by: Roman Gushchin <guro@...com>
> Cc: Jakub Kicinski <jakub.kicinski@...ronome.com>
> Cc: Alexei Starovoitov <ast@...nel.org>
> Cc: Daniel Borkmann <daniel@...earbox.net>

Reviewed-by: Jakub Kicinski <jakub.kicinski@...ronome.com>

Thanks Roman!