On Thu, Apr 12, 2018 at 03:16:23PM -0600, Ross Zwisler wrote: > On Thu, Apr 12, 2018 at 3:10 PM, Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote: > > On Thu, Apr 12, 2018 at 02:59:32PM -0600, Ross Zwisler wrote: > >> This is causing build breakage in the radix tree test suite in the > >> current linux/master: > >> > >> ./linux/../../../../include/linux/idr.h: In function ‘idr_init_base’: > >> ./linux/../../../../include/linux/radix-tree.h:129:2: warning: > >> implicit declaration of function ‘spin_lock_init’; did you mean > >> ‘spinlock_t’? [-Wimplicit-function-declaration] > > > > Argh. That was added two patches later in > > "xarray: Add definition of struct xarray": > > > > diff --git a/tools/include/linux/spinlock.h b/tools/include/linux/spinlock.h > > index b21b586b9854..4ec4d2cbe27a 100644 > > --- a/tools/include/linux/spinlock.h > > +++ b/tools/include/linux/spinlock.h > > @@ -6,8 +6,9 @@ > > #include <stdbool.h> > > > > #define spinlock_t pthread_mutex_t > > -#define DEFINE_SPINLOCK(x) pthread_mutex_t x = PTHREAD_MUTEX_INITIALIZER; > > +#define DEFINE_SPINLOCK(x) pthread_mutex_t x = PTHREAD_MUTEX_INITIALIZER > > #define __SPIN_LOCK_UNLOCKED(x) (pthread_mutex_t)PTHREAD_MUTEX_INITIALIZER > > +#define spin_lock_init(x) pthread_mutex_init(x, NULL) > > > > #define spin_lock_irqsave(x, f) (void)f, pthread_mutex_lock(x) > > #define spin_unlock_irqrestore(x, f) (void)f, pthread_mutex_unlock(x) > > > > I didn't pick up that it was needed this early on in the patch series. > > Hmmm..I don't know if it's a patch ordering issue, because this > happens with the current linux/master where presumably all the patches > are present? No, Andrew only merged the first 8 or so because of lack of review of the remaining patches. Even though I cc'd people as hard as I could. Including you. :-P You could, for example, review the DAX patches ...