Re: [PATCH v3 1/4] array_size.h: Add ARRAY_END()

[Alejandro Colomar]

Hi Maciej,

On Sun, Nov 09, 2025 at 07:05:40PM +0000, Maciej W. Rozycki wrote:
> On Sun, 9 Nov 2025, Alejandro Colomar wrote:
> 
> > diff --git a/include/linux/array_size.h b/include/linux/array_size.h
> > index 06d7d83196ca..b5775b8f13de 100644
> > --- a/include/linux/array_size.h
> > +++ b/include/linux/array_size.h
> > @@ -10,4 +10,10 @@
> >   */
> >  #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
> >  
> > +/**
> > + * ARRAY_END - get a pointer to one past the last element in array @a
> > + * @a: array
> > + */
> > +#define ARRAY_END(a)  (&(a)[ARRAY_SIZE(a)])
> 
>  Why `a' rather than `arr' as with the other macro?

It's simpler, and equally informative.  I wish ARRAY_SIZE() would have
also used 'a'.  On the other hand, consistency is important.  I'll make
it 'arr'.

Thanks!


Have a lovely night!
Alex


> 
>   Maciej

-- 
<https://www.alejandro-colomar.es>
Use port 80 (that is, <...:80/>).

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