Re: [PATCH] streamline_config.pl: add LOCALMODCONFIG_PRESERVE to preserve some kconfigs

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Hi, Steven,
On Sat, May 02, 2020 at 09:40:24AM -0400, Steven Rostedt wrote:
> On Sat, 2 May 2020 21:30:54 +0800
> Changbin Du <changbin.du@xxxxxxxxx> wrote:
> 
> > > > Sometimes it is useful to preserve batches of configs when making
> > > > localmodconfig. For example, I usually don't want any usb and fs
> > > > modules to be disabled. Now we can do it by:
> > > > 
> > > >  $ make LOCALMODCONFIG_PRESERVE="drivers/usb;fs" localmodconfig  
> > > 
> > > That's too much typing ;-) What about just "KEEP='drivers/usb;fs'"?
> > >  
> > I think we'd better use a long name since it will be passed to the entire kbuild.
> > And we alreay have one named LOCALMODCONFIG_DEBUG. The prefix LOCALMODCONFIG_
> > can help to avoid namespace pollution.
> 
> I politely disagree. Build options is not common. The
> LOCALMODCONFIG_DEBUG is an environment variable, which I couldn't just
> use DEBUG.
> 
This is what I am worried about since LOCALMODCONFIG_PRESERVE also is an
environment variable. A short name possibly overwrite internal kbuild
variables.

> If you absolutely require a prefix, shorten it to LMC_ or something. I
> already hate typing 'localmodconfig' once ;-)
> 
I undstand your pain. This why I never type 'localmodconfig' but copy it
from 'make help' :). Maybe we can get more inputs from others.

> -- Steve

-- 
Cheers,
Changbin Du



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