netdev - Re: [PATCH bpf-next v4 3/3] bpf: btf: print map dump and lookup with btf info

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Message-ID: <20180711130456.5bbb8eb7@cakuba.lan>
Date:   Wed, 11 Jul 2018 13:04:56 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Okash Khawaja <osk@...com>
Cc:     Daniel Borkmann <daniel@...earbox.net>,
        Martin KaFai Lau <kafai@...com>,
        Alexei Starovoitov <ast@...nel.org>,
        Yonghong Song <yhs@...com>,
        Quentin Monnet <quentin.monnet@...ronome.com>,
        "David S. Miller" <davem@...emloft.net>, <netdev@...r.kernel.org>,
        <kernel-team@...com>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH bpf-next v4 3/3] bpf: btf: print map dump and lookup
 with btf info

On Tue, 10 Jul 2018 20:21:11 -0700, Okash Khawaja wrote:
> +	if (err || btf_info.btf_size > last_size) {
> +		err = errno;

errno may not be set in case btf_info.btf_size > last_size

errno is positive, while other error return codes are negative.

> +		goto exit_free;
> +	}