Re: [PATCH v4 19/20] mips: Convert to GENERIC_CMDLINE

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On Tue, Apr 06, 2021 at 10:38:36AM -0700, Daniel Walker wrote:
> On Fri, Apr 02, 2021 at 03:18:21PM +0000, Christophe Leroy wrote:
> > -config CMDLINE_BOOL
> > -	bool "Built-in kernel command line"
> > -	help
> > -	  For most systems, it is firmware or second stage bootloader that
> > -	  by default specifies the kernel command line options.  However,
> > -	  it might be necessary or advantageous to either override the
> > -	  default kernel command line or add a few extra options to it.
> > -	  For such cases, this option allows you to hardcode your own
> > -	  command line options directly into the kernel.  For that, you
> > -	  should choose 'Y' here, and fill in the extra boot arguments
> > -	  in CONFIG_CMDLINE.
> > -
> > -	  The built-in options will be concatenated to the default command
> > -	  line if CMDLINE_OVERRIDE is set to 'N'. Otherwise, the default
> > -	  command line will be ignored and replaced by the built-in string.
> > -
> > -	  Most MIPS systems will normally expect 'N' here and rely upon
> > -	  the command line from the firmware or the second-stage bootloader.
> > -
> 
> 
> See how you complained that I have CMDLINE_BOOL in my changed, and you think it
> shouldn't exist.
> 
> Yet here mips has it, and you just deleted it with no feature parity in your
> changes for this.

AFAICT, CMDLINE_BOOL equates to a non-empty or empty CONFIG_CMDLINE. You 
seem to need it just because you have CMDLINE_PREPEND and 
CMDLINE_APPEND. If that's not it, what feature is missing? CMDLINE_BOOL 
is not a feature, but an implementation detail.

Rob



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