On Fri, Jun 19, 2026 at 09:45:18AM +0300, Andy Shevchenko wrote: > On Thu, Jun 18, 2026 at 08:47:34PM -0700, Kees Cook wrote: > > On Wed, Jun 17, 2026 at 01:12:36PM +0200, Andy Shevchenko wrote: > > > Convert size_add() to take variadic argument, so we can simplify users > > > with using a macro only once. > > > > Oh, this is fun. I like it. :) > > He-he :-) > > ... > > > > +#define __size_add4(addend1, addend2, addend3, addend4, addend5, ...) > > > \ > > > + __size_add(__size_add3(addend1, addend2, addend3, addend4), addend5) > > > > Is 4 the max seen in practice? > > In patch 2 there are 5! In cover letter I also mentioned a new user > (there are actually three). And I remember seeing 3 somewhere else.
I feel like we should allow size_mul() to work this way too, though I don't find any users that would need it, so I guess just size_add()? I'm fine for this to go via whatever tree is first to use it: Acked-by: Kees Cook <[email protected]> -- Kees Cook
