linux-kernel - Re: [PATCH 1/2] drm/vkms: Use index instead of 0 in possible crtc

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <CADKXj+4R=J0mEs3hYGiMS_iK+yhAZyXi_xOg-nRMtTAvSuCz2Q@mail.gmail.com>
Date:   Tue, 18 Jun 2019 18:51:17 -0300
From:   Rodrigo Siqueira <rodrigosiqueiramelo@...il.com>
To:     Simon Ser <contact@...rsion.fr>
Cc:     Brian Starkey <brian.starkey@....com>,
        Liviu Dudau <liviu.dudau@....com>,
        Haneen Mohammed <hamohammed.sa@...il.com>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] drm/vkms: Use index instead of 0 in possible crtc

On Tue, Jun 18, 2019 at 2:18 AM Simon Ser <contact@...rsion.fr> wrote:
>
> On Tuesday, June 18, 2019 5:19 AM, Rodrigo Siqueira <rodrigosiqueiramelo@...il.com> wrote:
> > I made the patch, but when I started to write the commit message, I just
> > realized that I did not understand why possible_crtcs should not be
> > equal zero. Why can we not use zero?
>
> Hi,
>
> possible_crtcs is a bitfield. If it's zero, it means the plane cannot
> be attached to any CRTC, which makes it rather useless.

Hi,

Thank you very much for your explanation. I'll try to finish the patch.

> Thanks,
>
> Simon



-- 

Rodrigo Siqueira
https://siqueira.tech