On Sun, 2018-07-08 at 12:42 -0600, Jason Gunthorpe wrote:
> On Sun, Jul 08, 2018 at 03:31:45PM +0000, Bart Van Assche wrote:
> > On Sun, 2018-07-08 at 13:38 +0300, Leon Romanovsky wrote:
> > > + * - 'a << s' sets the sign bit, if any, in '*d'
> >
> > Setting the highest bit is fine if a is unsigned.
>
> No, it isn't, it makes 'd' negative, which is to be considered an overflow.
How could an *unsigned* number ever be negative? Please clarify.
Thanks,
Bart.
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