[Libguestfs] [PATCH libnbd 0/5] generator: Add attribute((nonnull)) annotations

This patch series adds nonnull annotations for parameters which should be non-NULL. There was much discussion on IRC about whether this is a good idea, pointing in particular to the bug below which is still present in modern GCC. It's better to have these discussions on list so they're archived. https://bugzilla.redhat.com/show_bug.cgi?id=1041336 There's a possible follow-up patch which *removes* all the pointer == NULL tests added in the final patch, again something for discussion. See my view on this topic here (and Eric's follow up): https://listman.redhat.com/archives/libguestfs/2022-September/029966.html Rich.