Re: include/trace/events/nilfs2.h:191:1: sparse: sparse: cast to restricted blk_opf_t

[Bart Van Assche]

On 8/4/22 19:03, kernel test robot wrote:
> sparse warnings: (new ones prefixed by >>)
>     fs/nilfs2/segment.c: note: in included file (through include/trace/trace_events.h, include/trace/define_trace.h, include/trace/events/nilfs2.h):
> > > include/trace/events/nilfs2.h:191:1: sparse: sparse: cast to restricted blk_opf_t
> > > include/trace/events/nilfs2.h:191:1: sparse: sparse: cast to restricted blk_opf_t
> > > include/trace/events/nilfs2.h:191:1: sparse: sparse: restricted blk_opf_t degrades to integer
> > > include/trace/events/nilfs2.h:191:1: sparse: sparse: restricted blk_opf_t degrades to integer
>
> vim +191 include/trace/events/nilfs2.h

Hi Luc and Linus,

I think the above sparse warnings refer to the following macro:

#define is_signed_type(type)	(((type)(-1)) < (type)1)

Is the current plan still to modify sparse such that it stops 
complaining about the above macro?

See also 
https://lore.kernel.org/linux-sparse/20220626095814.7wtma47w4sph7dha@mail/

Thanks,

Bart.