* Arnd Bergmann:
Should we just remove __kernel_fd_set from the exported headers and
define the internal fd_set directly in include/linux/types.h? (Adding the
folks from the old thread to Cc).
The type is used in the sanitizers, but incorrectly. They assume that
FD_SETSIZE is always 1024. (The existence of __kernel_fd_set is
itself somewhat questionable because it leads to such bugs.) Moving
around the type could cause a build failure in the sanitizers, but I'm
not entirely clear how the UAPI headers are included there.
Otherwise, I couldn't find any uses.