Re: [PATCH] lib: count_zeros: unify count_{leading,trailing}_zeros()

[Andy Shevchenko]

On Mon, Mar 23, 2026 at 01:00:32PM -0400, Yury Norov wrote:
> The 'leading' helper returns BITS_PER_LONG if x == 0, while 'trailing'
> one returns COUNT_TRAILING_ZEROS_0, which turns to be -1.
> 
> None of the current users explicitly check the returned value for
> COUNT_TRAILING_ZEROS_0, except the loongarch, which tests implicitly
> for the '>= 0'.
> 
> So, align count_trailing_zeros() with the count_leading_zeros(), and
> simplify the loongarch handling.

Makes sense,
Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxx>

-- 
With Best Regards,
Andy Shevchenko