On Tue, 14 Aug 2018 10:06:18 -0700
"Paul E. McKenney" <[email protected]> wrote:
> > > #define __SRCU_STRUCT_INIT(name, pcpu_name)
> > > \
> > > - { \
> > > - .sda = &pcpu_name, \
> > > - .lock = __SPIN_LOCK_UNLOCKED(name.lock), \
> > > - .srcu_gp_seq_needed = 0 - 1, \
> > > - __SRCU_DEP_MAP_INIT(name) \
> > > - }
> > > +{
> > > \
> > > + .sda = &pcpu_name, \
> > > + .lock = __SPIN_LOCK_UNLOCKED(name.lock), \
> > > + .srcu_gp_seq_needed = 0 - 1, \
> >
> > Interesting initialization of -1. This was there before, but still
> > interesting none the less.
>
> If I recall correctly, this subterfuge suppresses compiler complaints
> about initializing an unsigned long with a negative number. :-/
Did you try:
.srcu_gp_seq_needed = -1UL,
?
-- Steve
