Re: [patch] 2.6.10-rc2-mm2: MTD_XIP dependencies

From: Nicolas Pitre
Date: Thu Nov 18 2004 - 21:08:24 EST


On Fri, 19 Nov 2004, Adrian Bunk wrote:

> On Thu, Nov 18, 2004 at 05:31:32PM -0500, Nicolas Pitre wrote:
> >...
> > Can we make it conditional on CONFIG_XIP_KERNEL instead?
> > It would be less messy IMHO.
>
> I copied the dependency from the #ifdef before the #error.
>
> The #error should either go or be the same than the Kconfig dependency.

And on what basis? This just doesn't make sense.

CONFIG_MTD_XIP is there to be compatible with kernels which are made
XIP. This currently means _all_ ARM flavours the kernel currently
supports. Yet there is only SA11x0 and PXA2xx which have proper MTD_XIP
primitives ence the #error.

My position is therefore that the CONFIG_MTD_XIP should depend on
CONFIG_XIP_KERNEL since this is what it is for, and the #error stay as
is. If ever you make x86 kernel XIPable you'll need to add the missing
bits guarded by the #error anyway.

And no, allyesconfig makes little sense on ARM as it has been discussed
on lkml before.


Nicolas
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