netdev - Re: [PATCH net-next 5/7] net: bonding: Add extack messages for some enslave failures

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Date:   Wed, 4 Oct 2017 20:39:35 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     David Ahern <dsahern@...il.com>
Cc:     netdev@...r.kernel.org, j.vosburgh@...il.com, vfalico@...il.com,
        andy@...yhouse.net, jiri@...lanox.com, idosch@...lanox.com,
        davem@...emloft.net, bridge@...ts.linux-foundation.org
Subject: Re: [PATCH net-next 5/7] net: bonding: Add extack messages for some
 enslave failures

Wed, Oct 04, 2017 at 08:06:16PM CEST, dsahern@...il.com wrote:
>On 10/4/17 11:04 AM, Jiri Pirko wrote:
>> Wed, Oct 04, 2017 at 05:35:46PM CEST, dsahern@...il.com wrote:
>>> On 10/3/17 11:38 PM, Jiri Pirko wrote:
>>>> Wed, Oct 04, 2017 at 06:58:52AM CEST, dsahern@...il.com wrote:
>>>>> A number of bond_enslave errors are logged using the netdev_err API.
>>>>> Return those messages to userspace via the extack facility.
>>>>>
>>>>> Signed-off-by: David Ahern <dsahern@...il.com>
>>>>> ---
>>>>> drivers/net/bonding/bond_main.c | 12 ++++++++++++
>>>>> 1 file changed, 12 insertions(+)
>>>>>
>>>>> diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
>>>>> index bc92307c2082..6688dc9154e0 100644
>>>>> --- a/drivers/net/bonding/bond_main.c
>>>>> +++ b/drivers/net/bonding/bond_main.c
>>>>> @@ -1348,12 +1348,15 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
>>>>>
>>>>> 	/* already in-use? */
>>>>> 	if (netdev_is_rx_handler_busy(slave_dev)) {
>>>>> +		NL_SET_ERR_MSG(extack,
>>>>> +			       "Device is in use and cannot be enslaved");
>>>>
>>>> Please don't do this kind of wrapping. Just let the string be on the
>>>> same line.
>>>>
>>>
>>> Ok, I will do that for bonding only since it is the existing style.
>> 
>> I don't believe you need to do this wrap for any code. Just don't wrap.
>> General code stype says no wrap for strings :)
>> 
>
>I do not break / wrap strings; they need to be searchable. I assumed you
>meant this is preferred for bonding:
>
>NL_SET_ERR_MSG(extack, "Device is in use and cannot be enslaved");

Yep.

>
>
>over what I have done:
>
>NL_SET_ERR_MSG(extack,
>	       "Device is in use and cannot be enslaved");