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Date:   Wed, 20 Jul 2022 14:27:40 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     Ido Schimmel <idosch@...dia.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, kuba@...nel.org,
        petrm@...dia.com, pabeni@...hat.com, edumazet@...gle.com,
        mlxsw@...dia.com, saeedm@...dia.com, snelson@...sando.io
Subject: Re: [patch net-next v2 05/12] mlxsw: core_linecards: Expose HW
 revision and INI version

Wed, Jul 20, 2022 at 10:56:35AM CEST, idosch@...dia.com wrote:
>On Tue, Jul 19, 2022 at 08:48:40AM +0200, Jiri Pirko wrote:
>> +int mlxsw_linecard_devlink_info_get(struct mlxsw_linecard *linecard,
>> +				    struct devlink_info_req *req,
>> +				    struct netlink_ext_ack *extack)
>> +{
>> +	char buf[32];
>> +	int err;
>> +
>> +	mutex_lock(&linecard->lock);
>> +	if (WARN_ON(!linecard->provisioned)) {
>> +		err = 0;
>
>Why not:
>
>err = -EINVAL;
>
>?

Well, a) this should not happen. No need to push error to the user for
this as the rest of the info message is still fine.


>
>> +		goto unlock;
>> +	}
>> +
>> +	sprintf(buf, "%d", linecard->hw_revision);
>> +	err = devlink_info_version_fixed_put(req, "hw.revision", buf);
>> +	if (err)
>> +		goto unlock;
>> +
>> +	sprintf(buf, "%d", linecard->ini_version);
>> +	err = devlink_info_version_running_put(req, "ini.version", buf);
>> +	if (err)
>> +		goto unlock;
>> +
>> +unlock:
>> +	mutex_unlock(&linecard->lock);
>> +	return err;
>> +}
>> +
>>  static int
>>  mlxsw_linecard_provision_set(struct mlxsw_linecard *linecard, u8 card_type,
>>  			     u16 hw_revision, u16 ini_version)
>> -- 
>> 2.35.3
>> 

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