Re: [PATCH] PM: Hide CONFIG_PM from users

On Tue, Feb 08, 2011 at 01:44:32AM +1100, Stephen Rothwell wrote:

On Mon, 7 Feb 2011 14:18:29 +0000 Mark Brown [off-list ref] wrote:

quoted

Do you mean that these systems require CONFIG_PM be turned off, or just
that people tend not to turn it on?  If the latter would you expect any
ill effects from doing so?

I don't know the answer to either question without testing.  All I am
saying is that currently the default for CONFIG_PM is "off" and you are
changing it to be "on" and there may not have been any testing done of
that in some situations.   We don't know where it was explicitly
turned off any more since we shrank our defconfig files (which was done
automatically) ... since it is off by default, it doesn't need to be
mentioned in a defconfig unless it needs to be turned on.

My suspicion would be that it'll have been turned off by someone hitting
return through a config upgrade rather than through deliberate effort.
On the other hand if it is essential for some machines to have it
disabled they probably want to have somethnig in Kconfig.