Re: [PATCH 2/6] bitmap: move some macros from linux/bitmap.h to linux/bitops.h

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On Wed, Jan 20, 2021 at 04:06:26PM -0800, Yury Norov wrote:
> In the following patches of the series they are used by
> find_bit subsystem.

s/subsystem/API/

...

> --- a/include/linux/bitops.h
> +++ b/include/linux/bitops.h
> @@ -7,6 +7,17 @@
>  
>  #include <uapi/linux/kernel.h>
>  
> +#define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) & (BITS_PER_LONG - 1)))
> +#define BITMAP_LAST_WORD_MASK(nbits) (~0UL >> (-(nbits) & (BITS_PER_LONG - 1)))

Hmm... Naming here is not in the bitops namespace.
I would expect BITS rather than BITMAP for these two.

So, we have at least the following options:
 - split to a separate header, like bitmap_macros.h
 - s/BITMAP/BITS/ and either define BITMAP_* as respective BITS_* or rename it
   everywhere in bitmap.*
 - your variant
 - ...???...


-- 
With Best Regards,
Andy Shevchenko





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