On Thu, Jun 16, 2016 at 12:08:27PM +0200, Geert Uytterhoeven wrote: > > #ifdef CONFIG_RMW_INSNS > > > > +/* > > + * Am I reading these CAS loops right in that %2 is the old value and the first > > + * iteration uses an uninitialized value? > > + * > > + * Would it not make sense to add: tmp = atomic_read(v); to avoid this? > > + */ > > + > > #define ATOMIC_OP_RETURN(op, c_op, asm_op) \ > > static inline int atomic_##op##_return(int i, atomic_t *v) \ > > { \ > > Do we want the above comment in the code? I figured it would not hurt; is this indeed the case, do we want to fix it? I can do a follow up patch clarifying the situation. -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html