linux-kernel - Re: [Intel-gfx] [PATCH v3 3/9] drm: Add Content Protection property

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

Date:   Tue, 05 Dec 2017 15:40:47 +0000
From:   Chris Wilson <chris@...is-wilson.co.uk>
To:     Daniel Vetter <daniel@...ll.ch>,
        "Sean Paul" <seanpaul@...omium.org>
Cc:     seanpaul@...gle.com, "David Airlie" <airlied@...ux.ie>,
        intel-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, daniel.vetter@...el.com
Subject: Re: [Intel-gfx] [PATCH v3 3/9] drm: Add Content Protection property

Quoting Daniel Vetter (2017-12-05 15:34:36)
> Two bits missing imo:
> - Should explain that userspace should poll this property to detect a
>   change from ENABLED to DESIRED (and take adequate actions and e.g. stop
>   the stream). No uevent will be sent out because the HDCP specs require
>   polling anyway.

What's more polling than poll()? :-p
-Chris