On Mon, Feb 10, 2025 at 04:56:46PM -0800, Keith Busch wrote: > +static __cold int io_rsrc_buffer_alloc(struct io_buf_table *table, unsigned nr) > +{ > + const int imu_cache_size = struct_size_t(struct io_mapped_ubuf, bvec, > + IO_CACHED_BVECS_SEGS); > + int ret; > + > + BUILD_BUG_ON(imu_cache_size != 512); This isn't accurate for 32-bit machines.