On Mon, 12 Aug 2019 16:01:25 -0400
Joel Fernandes <joel@xxxxxxxxxxxxxxxxx> wrote:
> > some/header/file.h:
> >
> > #ifdef CONFIG_DEBUG_LOCK_ALLOC
> > # define CHECK_DEVICE_LINKS_READ_LOCK_HELD() WARN_ON_ONCE(!defice_links_read_lock_held())
> > #else
> > # define CHECK_DEVICE_LINKS_READ_LOCK_HELD() do { } while (0)
> > #endif
> >
> > And just use CHECK_DEVICE_LINK_READ_LOCK_HELD() in those places. I
> > agree with Greg. "device_links_read_lock_heald()" should *never*
> > blindly return 1. It's confusing.
>
> Ok, then I will update the patch to do:
>
> #ifdef CONFIG_DEBUG_LOCK_ALLOC
> int device_links_read_lock_held(void)
> {
> return lock_is_held(&device_links_lock);
> }
> #endif
>
> That will also solve the build error. And callers can follow the above pattern you shared.
Sounds good!
-- Steve
