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SubjectRe: RFC: Testing for kernel features in external modules
On Thursday 24 June 2004 22:35, Andreas Dilger wrote:
> Ideally, when people make an incompatible kernel API change like this
> they would just #define HAVE_REMAP_PAGE_RANGE_VMA in the header that
> declares remap_page_range() directly (e.g. KERNEL_AS_O_DIRECT was added
> for this reason) instead of external builds having to figure this out
> themselves. Adding the check script is no less work than just adding
> the #define to the appropriate header directly.

I disagree. I don't think we want to clutter the code with feature definitions
that have no known users. That doesn't age/scale very well. It's easy enough
to test for features in the external module.

Andreas Gruenbacher <>
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