linux-kernel - Re: [PATCH v2] PM: runtime: Add support to disable wakeup sources

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 for Android: free password hash cracker in your pocket

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

Message-ID: <YwnPFdYL0W3e5E+n@kroah.com>
Date:   Sat, 27 Aug 2022 10:00:21 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Vimal Kumar <vimal.kumar32@...il.com>
Cc:     chinmoyghosh2001@...il.com, Mintu Patel <mintupatel89@...il.com>,
        Vishal Badole <badolevishal1116@...il.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH v2] PM: runtime: Add support to disable wakeup sources

On Thu, Aug 25, 2022 at 11:04:41PM +0530, Vimal Kumar wrote:
> User could find many wakeup sources available in the bsp, which
> they won't be using. Currently users can only get the status and
> list of enabled wakeup sources, but users can't disable it runtime.
> It's very difficult to find the driver for each wakeup sources from
> where it's getting enabled and make the changes for disabling it.
> 
> This will help users to disable any wakeup sources at runtime,
> avoiding any code change and re-compilation. A new class attribute
> "disable_ws" will be added in the wakeup calss. If user want to disable
> any wakeup sources, user need to find the wakeup dev node associated
> with the particular wakeup source and write the devnode name to the
> class attribute "disable_ws".
> 
> Example:
> Need to disable the wakeup source '1c08000.qcom,pcie'. The dev node
> associated with this wakeup source is:
> cat /sys/class/wakeup3/name ==> "1c08000.qcom,pcie", then for disabling
> this wakeup source :
> 	echo wakeup3 > /sys/class/wakeup/disable_ws
> 
> Co-developed-by: Mintu Patel <mintupatel89@...il.com>
> Signed-off-by: Mintu Patel <mintupatel89@...il.com>
> Co-developed-by: Vishal Badole <badolevishal1116@...il.com>
> Signed-off-by: Vishal Badole <badolevishal1116@...il.com>
> Signed-off-by: Vimal Kumar <vimal.kumar32@...il.com>
> ---
>  Documentation/ABI/testing/sysfs-class-wakeup | 16 +++++
>  drivers/base/power/wakeup_stats.c            | 65 +++++++++++++++++++-
>  2 files changed, 80 insertions(+), 1 deletion(-)

Based on previous discussions on the original submission that you seem
to have taken private, sorry but no, I can't even consider this
submission from you.

Please work on other portions of the kernel first to get used to the
development process.

Rafael, please don't worry about this.

greg k-h