netdev - Re: [RFC v2 bpf-next 4/5] tools/bpf: bpftool, print strerror when map lookup error occurs

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Message-ID: <20181002100243.740dc5d6@cakuba.netronome.com>
Date:   Tue, 2 Oct 2018 10:02:43 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Prashant Bhole <bhole_prashant_q7@....ntt.co.jp>
Cc:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        "David S . Miller" <davem@...emloft.net>,
        Quentin Monnet <quentin.monnet@...ronome.com>,
        netdev@...r.kernel.org
Subject: Re: [RFC v2 bpf-next 4/5] tools/bpf: bpftool, print strerror when
 map lookup error occurs

On Tue,  2 Oct 2018 14:35:18 +0900, Prashant Bhole wrote:
> Since map lookup error can be ENOENT or EOPNOTSUPP, let's print
> strerror() as error message in normal and JSON output.
> 
> This patch adds helper function print_entry_error() to print
> entry from lookup error occurs
> 
> Example: Following example dumps a map which does not support lookup.
> 
...

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

Thank you!