On Tue, Oct 29, 2024 at 09:53:56PM +0530, Anuj Gupta wrote: > +/* flags for integrity meta */ > +typedef __u16 __bitwise uio_meta_flags_t; > + > +struct uio_meta { > + uio_meta_flags_t flags; .. this is a bitwise type > +/* flags for integrity meta */ > +#define IO_INTEGRITY_CHK_GUARD (1U << 0) /* enforce guard check */ > +#define IO_INTEGRITY_CHK_REFTAG (1U << 1) /* enforce ref check */ > +#define IO_INTEGRITY_CHK_APPTAG (1U << 2) /* enforce app check */ .. but these aren't. Leading to warnings like: CHECK block/bio-integrity.c block/bio-integrity.c:371:17: warning: restricted uio_meta_flags_t degrades to integer block/bio-integrity.c:373:17: warning: restricted uio_meta_flags_t degrades to integer block/bio-integrity.c:375:17: warning: restricted uio_meta_flags_t degrades to integer block/bio-integrity.c:402:33: warning: restricted uio_meta_flags_t degrades to integer from sparse. Given that the flags are uapi, the it's probably best to just drop the __bitwise annotation.