On Wed, 2008-08-06 at 15:48 -0700, H. Peter Anvin wrote:
> Tim Bird wrote:
> > 
> > One difficulty is that the other arches' command lines
> > are not currently "broken", so there's no real incentive
> > to change them.
> > 
> > The only thing novel thing I'm adding here is the addition of
> > the leading '!' to allow for an override.  This is needed
> > in some x86 cases I'm familiar with, but I've haven't seen
> > any cases where it would be useful for other arches.
> > (not to say they don't exist - I just haven't seen them.)
> > 
> Note that it could just as easily be done with a CONFIG_CMDLINE_OVERRIDE 
> option, since the initial reason for a magic character was to be able to 
> provide both prefix and suffix splicing.

You're right, I had forgotten about the suffix splicing and my brain is
a bit foggy on what motivated it.

> CONFIG_CMDLINE_OVERRIDE is probably more palatable to other architectures.

Yes, though I doubt we're in danger of introducing any real backwards
compatibility issues with the magic '!' at the beginning.

Mathematics is the supreme nostalgia of our time.

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