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    SubjectRe: [PATCH] Fix corruption of CONFIG_X86_32 in 'make oldconfig'
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    On Mon, 2011-05-30 at 12:58 +0200, Ingo Molnar wrote:
    >
    > * Theodore Tso <tytso@MIT.EDU> wrote:
    >
    > > I'd think that "make ARCH=x86_64 oldconfig"
    > >
    > > ... where the old configuration contained CONFIG_X86_32
    > > should trigger a warning, if not an outright error that
    > > stops the build....
    >
    > That would be a rather sad regression for me: i use that command
    > regularly to transform .configs that came in bugreports into a config
    > suitable for a testbox that has a different bitness userspace
    > installed.

    And if it has a different SCSI or ATA controller? Then you need
    something like:

    'make CONFIG_SATA_MV=y oldconfig'

    to make your config actually useful.

    Which only goes to reinforce my point that CONFIG_64BIT *isn't* that
    special.

    Yes, we should fix the tools so that it's easy to *fix* certain settings
    when running randconfig/oldconfig/all*config. That addresses *all* your
    examples that you posted in a separate mail, doesn't it?

    Without being a dirty hack which only works for *one* setting
    (CONFIG_64BIT), and only works on *one* architecture (there is no
    equivalent ARCH= hack for setting CONFIG_64BIT on
    powerpc/mips/sparc/sh/parisc).

    --
    dwmw2



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