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Re: [PATCH V3 2/8] drivers: boot_constraint: Add boot_constraints_disable kernel parameter

From Viresh Kumar <viresh.kumar@linaro.org>
Newsgroups linux.kernel
Subject Re: [PATCH V3 2/8] drivers: boot_constraint: Add boot_constraints_disable kernel parameter
Date 2017-08-29 12:10 +0200
Message-ID <ujLD3-1hQ-13@gated-at.bofh.it> (permalink)
References <u9BEZ-1GX-3@gated-at.bofh.it> <u9BOG-1MA-9@gated-at.bofh.it> <ujIlQ-7yN-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 29-08-17, 08:37, Greg Kroah-Hartman wrote:
> On Tue, Aug 01, 2017 at 02:53:43PM +0530, Viresh Kumar wrote:
> > +	boot_constraints_disable
> > +			Do not set any boot constraints for devices.
> 
> Shouldn't that be the default?  As really, that is what the situation is
> today, why force everyone to always enable the disable value?  And
> enabling a value to disable something is usually a sign of bad naming...

I will explain once again how it is getting used and then will do whatever you
suggest.

- Platforms that don't need boot constraints should not enable the CONFIG in the
  first place. Though we use the same kernel image on multiple hardware types
  many times.
- If a platform doesn't have a platform-specific driver that adds constraints at
  boot, then the boot constraint core wouldn't get into picture at all and it is
  as good as being disabled.
- And the above boot-argument (boot_constraints_disable) is used ONLY in the
  case where the platform driver is adding boot constraints at runtime.

So, the boot-constraints are disabled by default for everyone even if the
configuration is enabled. And that's why I named it the way it is right now.

Do you still feel that it needs to be renamed? 

-- 
viresh

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Thread

Re: [PATCH V3 2/8] drivers: boot_constraint: Add  boot_constraints_disable kernel parameter Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-08-29 08:40 +0200
  Re: [PATCH V3 2/8] drivers: boot_constraint: Add boot_constraints_disable kernel parameter Jani Nikula <jani.nikula@linux.intel.com> - 2017-08-29 08:50 +0200
  Re: [PATCH V3 2/8] drivers: boot_constraint: Add  boot_constraints_disable kernel parameter Viresh Kumar <viresh.kumar@linaro.org> - 2017-08-29 12:10 +0200
    Re: [PATCH V3 2/8] drivers: boot_constraint: Add  boot_constraints_disable kernel parameter Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-08-29 14:00 +0200

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