hi, Sorry for being so late to reply to this: it's been busy. On Fri, 16 May 2025 at 11:07, Miklos Szeredi <miklos@xxxxxxxxxx> wrote: > Okay, let's add it to fuse_init_in as uint8_t. Is this to help save a few bytes? I'm not sure it's worth it, for a few reasons: - there are 11 reserved fields here, which is still quite a lot of room - even if we reduce this to a single byte, we need to add 3 extra bytes of padding, which is a bit awkward. We also only get to use this if we have something else that fits into a u8 or u16, otherwise it's wasted - we might imagine some sort of a beautiful future where the kernel figures out a way to increase this restriction considerably (ie: > 256). I'm not sure how that would look, but it seems foolish to not consider it. I'm happy to redo the patch if you're sure this is right (since I want to update the commit message a bit anyway), but how should I call the 3 extra bytes in that case? unused2? reserved? Thanks lis