On Sat, 9 May 2020 21:05:48 +0200, Stephen Kitt <st...@sk2.org> wrote: > On Sat, 9 May 2020 10:59:14 -0700, Jakub Kicinski <k...@kernel.org> wrote: > > What if we went back to your original proposal of an empty struct but > > added in an extern in front? That way we should get linker error on > > pointer references. > > That silently fails to fail if any other link object provides a definition > for the symbol, even if the type doesn’t match...
And it breaks the build if INET_ADDR_COOKIE is used twice in the same unit, e.g. in inet_hashtables.c. Regards, Stephen
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