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Re: [PATCH 11/12] slab: Remove __malloc attribute from realloc functions

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On Thu, Sep 22, 2022 at 11:23:46AM +0200, Miguel Ojeda wrote:
> On Thu, Sep 22, 2022 at 5:10 AM Kees Cook <keescook@xxxxxxxxxxxx> wrote:
> >
> > -#ifdef __alloc_size__
> > -# define __alloc_size(x, ...)  __alloc_size__(x, ## __VA_ARGS__) __malloc
> > -#else
> > -# define __alloc_size(x, ...)  __malloc
> > -#endif
> > +#define __alloc_size(x, ...)   __alloc_size__(x, ## __VA_ARGS__) __malloc
> > +#define __realloc_size(x, ...) __alloc_size__(x, ## __VA_ARGS__)
> 
> These look unconditional now, so we could move it to
> `compiler_attributes.h` in a later patch (or an independent series).

I wasn't sure if this "composite macro" was sane there, especially since
it would be using __malloc before it was defined, etc. Would you prefer
I move it?

-- 
Kees Cook



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