linux-kernel - Re: [PATCH bpf] Revert "bpf: program: Refuse non-O_RDWR flags in BPF_OBJ

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Date:   Tue, 22 Jun 2021 15:03:58 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Lorenz Bauer <lmb@...udflare.com>,
        Maciej Żenczykowski <zenczykowski@...il.com>
Cc:     Alexei Starovoitov <ast@...nel.org>,
        Linux Network Development Mailing List 
        <netdev@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        BPF Mailing List <bpf@...r.kernel.org>,
        "David S . Miller" <davem@...emloft.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Greg Kroah-Hartman <gregkh@...gle.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Lorenzo Colitti <lorenzo@...gle.com>
Subject: Re: [PATCH bpf] Revert "bpf: program: Refuse non-O_RDWR flags in
 BPF_OBJ_GET"

On 6/22/21 10:59 AM, Lorenz Bauer wrote:
> On Mon, 21 Jun 2021 at 22:37, Maciej Żenczykowski
> <zenczykowski@...il.com> wrote:
>>
>> Please revert immediately.  I've got better things to do.  I shouldn't
>> have to be thinking about this or arguing about this.
>> It already took me significantly more than a day simply to track this
>> down (arguably due to miscommunications with Greg, who'd earlier
>> actually found this in 5.12, but misunderstood the problem, but
>> still...).
> 
> You're barking up the wrong tree. I don't object to reverting the
> patch, you asked me for context and I gave it to you.

+1, this kind of barking was unnecessary and inappropriate.

I revamped the commit message a bit to have some more context for future
reference when we need to get back on this.

Anyway, applied.