Re: RFC: out-of-tree tty driver breakage (changing ASYNC_ bits)

[Peter Hurley]

On 01/11/2016 07:53 AM, Grant Edwards wrote:
> On 2016-01-11, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
>> On Sun, Jan 10, 2016 at 01:42:44PM -0800, Peter Hurley wrote:
>>
>>> This will break out-of-tree drivers but I don't really see a
>>> realistic alternative. Also, I think the new symbol prefix ASY_ isn't
>>> great and I'd like to get some suggestions.
>>
>> Don't worry about breaking out-of-tree drivers, that's fine.
> 
> One request from this maintainer of several out-of-tree drivers: if
> you break something, break it such that it won't compile.  It would be
> nice to avoid changes that break functionality but still compile
> without warning.

I was in the process of writing how I can't remove ASYNC_INITIALIZED, et.al
from the uapi header, when I realized that I can just guard them with
#ifndef _KERNEL_ which will trigger the requisite out-of-tree build
break.

Regards,
Peter Hurley