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SubjectRe: Fix UDF-FS potentially dereferencing null
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> Hi,
>
> is it maybe a good idea to map this to gcc's "nonnull" attribute in some
> way? That way both sparse and the compiler get this explicit
> knowledge.... (afaics gcc will then also just optimize out the null ptr
> checks)

eh scratch that idea; the nonnull attribute appears to be quite useless
(and unused by gcc)
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