On Fri, Aug 12, 2022 at 2:54 PM Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote: > > And yes, on this latest case it was once again "struct io_cmd_data". Duh. I'm a nincompoop. I'm only looking at the BUG_ON(), but io_cmd_data is the *good* case that should cover it all, the "cmd_sz" is the problem case, and the problematic stricture name doesn't actually show up in the BUILD_BUG_ON() output. So you have to look at where it's inlined from and check them individually, and yeah, it seems to be 'struct io_rw' every time. Linus