linux-kernel - Re: [RFC PATCH 1/4] tools/lib/thermal: Add a thermal library

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Date:   Wed, 16 Feb 2022 20:38:18 +0100
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     srinivas pandruvada <srinivas.pandruvada@...ux.intel.com>,
        rafael@...nel.org
Cc:     linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        Sasha Levin <sashal@...nel.org>,
        William Breathitt Gray <vilhelm.gray@...il.com>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: Re: [RFC PATCH 1/4] tools/lib/thermal: Add a thermal library


Hi Srinivas,

thanks for the review

On 16/02/2022 17:40, srinivas pandruvada wrote:
> On Mon, 2022-02-14 at 22:04 +0100, Daniel Lezcano wrote:
>> The thermal framework implements a netlink notification mechanism to
>> be used by the userspace to have a thermal configuration discovery,
>> trip point changes or violation, cooling device changes
>> notifications,
>> etc...
>>
>> This library provides a level of abstraction for the thermal netlink
>> notification allowing the userspace to connect to the notification
>> mechanism more easily. The library is callback oriented.
>>
> Some minor comments.
> May be better use some defines instead of returning "-1" for error
> conditions.

Do you suggest like an enum with different errors or just having -1 
replaced by eg. THERMAL_ERROR ?


[ ... ]

>> + * Low level netlink
>> + */
>> +extern int nl_subscribe_thermal(struct nl_sock *nl_sock, struct
>> nl_cb *nl_cb,
>> +                               const char *group);
>> +
> To complete API, don't we need nl_unsubscribe which calls
> nl_socket_drop_memberships()?
Ah, yes. I'll add it.

Thanks



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