Re: [PATCH v3 2/2] checks: Improve i2c reg property checking

[Andy Shevchenko]

On Tue, Jun 2, 2020 at 11:03 AM Serge Semin
<Sergey.Semin@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Thu, May 28, 2020 at 06:26:50PM +0930, Joel Stanley wrote:

...

> > +#define I2C_TEN_BIT_ADDRESS  (1 << 31)
>
> As Andy neatly pointed out here:
> https://lore.kernel.org/lkml/20200527133656.GV1634618@xxxxxxxxxxxxxxxxxx/
> (1 << 31) is UB.

Thanks, Serge. Yes, we have to use 1U in the definitions (for 31 is
necessary, for the rest is for the sake of consistency).

-- 
With Best Regards,
Andy Shevchenko