Re: [PATCH] kernel.h: Skip single-eval logic on literals in min()/max()
From: Ian Campbell
Date: Thu Mar 08 2018 - 17:17:48 EST
On Thu, 2018-03-08 at 13:40 -0800, Kees Cook wrote:
>
> +#define __min(t1, t2, x, y) \
> + __builtin_choose_expr(__builtin_constant_p(x) && \
> + __builtin_constant_p(y) && \
> + __builtin_types_compatible_p(t1, t2), \
> + (t1)(x) < (t2)(y) ? (t1)(x) : (t2)(y), \
> + __single_eval_min(t1, t2, \
> + __UNIQUE_ID(max1_), \
> + __UNIQUE_ID(max2_), \
min1_ etc?
Ian.