netdev - Re: [PATCH net-next v12 2/5] netvsc: refactor notifier/event handling code to use the failover framework

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Message-ID: <cffe3c66-ae31-ae13-27ce-55f9be2d53d4@intel.com>
Date:   Sat, 26 May 2018 00:22:18 -0700
From:   "Samudrala, Sridhar" <sridhar.samudrala@...el.com>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     mst@...hat.com, davem@...emloft.net, netdev@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        virtio-dev@...ts.oasis-open.org, jesse.brandeburg@...el.com,
        alexander.h.duyck@...el.com, kubakici@...pl, jasowang@...hat.com,
        loseweigh@...il.com, jiri@...nulli.us, aaron.f.brown@...el.com,
        anjali.singhai@...el.com
Subject: Re: [PATCH net-next v12 2/5] netvsc: refactor notifier/event handling
 code to use the failover framework

On 5/25/2018 4:28 PM, Stephen Hemminger wrote:
> On Fri, 25 May 2018 16:11:47 -0700
> "Samudrala, Sridhar" <sridhar.samudrala@...el.com> wrote:
>
>> On 5/25/2018 3:34 PM, Stephen Hemminger wrote:
>>> On Thu, 24 May 2018 09:55:14 -0700
>>> Sridhar Samudrala <sridhar.samudrala@...el.com> wrote:
>>>   
>>>> --- a/drivers/net/hyperv/Kconfig
>>>> +++ b/drivers/net/hyperv/Kconfig
>>>> @@ -2,5 +2,6 @@ config HYPERV_NET
>>>>    	tristate "Microsoft Hyper-V virtual network driver"
>>>>    	depends on HYPERV
>>>>    	select UCS2_STRING
>>>> +	select FAILOVER
>>> When I take a working kernel config, add the patches then do
>>> make oldconfig
>>>
>>> It is not autoselecting FAILOVER, it prompts me for it. This means
>>> if user says no then a non-working netvsc device is made.
>> I see
>>      Generic failover module (FAILOVER) [M/y/?] (NEW)
>>
>> So the user is given an option to either build as a Module or part of the
>> kernel. 'n' is not an option.
> With most libraries there is no prompt at all.

Not sure what you meant by this.
Without any patches applied, i had a .config file with HYPERV_NET configured
as a module.
Then after applying the first 2 patches in this series, i did a
   make oldconfig
and i see the above prompt.

Are you saying that on some distros, 'make oldconfig creates a .config
file without any prompt and FAILOVER is not getting selected even when HYPERV_NET
is enabled?