linux-kernel - Re: [PATCH 2/2] platform/chrome: cros_ec_proto: check for missing EC_CMD_HOST_EVENT_GET_WAKE

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:   Wed, 22 Jul 2020 17:54:30 -0700
From:   Guenter Roeck <groeck@...gle.com>
To:     Brian Norris <briannorris@...omium.org>
Cc:     Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Benson Leung <bleung@...omium.org>,
        Guenter Roeck <groeck@...omium.org>,
        Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] platform/chrome: cros_ec_proto: check for missing EC_CMD_HOST_EVENT_GET_WAKE_MASK

On Wed, Jul 22, 2020 at 5:50 PM Brian Norris <briannorris@...omium.org> wrote:
>
> On Wed, Jul 22, 2020 at 5:43 PM Brian Norris <briannorris@...omium.org> wrote:
> > unless I got
> > refactor cros_ec_get_host_event_wake_mask() to use
> > cros_ec_cmd_xfer_status() instead of send_command(). I'm actually not
> > sure why we don't do that, now that I think about it...
>
> Ah, that would appear to be recursion (cros_ec_query_all() ->
> cros_ec_get_host_event_wake_mask() -> cros_ec_cmd_xfer_status() -> ...
> cros_ec_query_all()), although that could only happen if the first
> cros_ec_query_all() doesn't initialize 'proto_version' to something
> besides EC_PROTO_VERSION_UNKNOWN. That is only possible if the EC
> reports '0' back to us.
>
> I might skip out on that particular refactor for the moment.
>
Agreed, better not touch that. As for the order of changes, I agree
that they are independent. Best approach might be to submit yours, and
then we can clean up things a bit more later after my series is in the
tree.

Thanks,
Guenter

> Brian