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LWN - [$] Documenting counted-by relationships in kernel data structures


Neo

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The C language is expressive in many ways, but it still does not have ways to express many of the relationships between fields in a data structure. That gap can be at least partially filled, though, if one is willing to create and use non-standard extensions. The adoption of of those extensions, in the form of the __counted_by() macro, has been merged for the 6.5 kernel release, even though the compiler feature it depends on has not yet been finalized.

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