linux-kernel - Re: [PATCH] thermal/drivers/netlink: Add the temperature when crossing a trip point

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Message-ID: <2fa60fba-e904-62c1-9b9c-9e05a877c050@linaro.org>
Date:   Sun, 28 Mar 2021 22:54:07 +0200
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>
Cc:     rkumbako@...cinc.com, Zhang Rui <rui.zhang@...el.com>,
        Amit Kucheria <amitk@...nel.org>,
        "open list:THERMAL" <linux-pm@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:ABI/API" <linux-api@...r.kernel.org>
Subject: Re: [PATCH] thermal/drivers/netlink: Add the temperature when
 crossing a trip point

On 28/03/2021 21:31, Srinivas Pandruvada wrote:
> Hi Daniel,

[ ... ]

>> I don't see where is the problem. The protocol is still compatible
>> with
>> the previous version, so that does not break the existing AFAICT.
>> That
>> is done on purpose.
> 
> The size of netlink message is changed. This is not a good argument to
> just adding members at the end. The point I am trying that netlink now
> is an ABI, which should go through same process as we are
> adding/changing a sysfs attributes.
>  

Ok I understand your point. I will provide a description in
Documentation/ABI/testing, something I should have done before and take
the opportunity to provide a bigger update of the thermal netlink
messages with more commands.

Thanks
  -- Daniel

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