[PATCH] hdrinstall: remove asm/io.h from user visibility

There's no excuse for userspace abusing this kernel header -- the kernel's
headers are not intended to provide a library of helper routines for
userspace.  Using <asm/io.h> from userspace is broken on most architectures
anyway.  Just say 'no'.
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

include/asm-generic/Kbuild.asm

@@ -4,8 +4,5 @@ unifdef-y += a.out.h auxvec.h byteorder.h errno.h fcntl.h ioctl.h	\
 	sigcontext.h siginfo.h signal.h socket.h sockios.h stat.h	\
 	statfs.h termbits.h termios.h timex.h types.h unistd.h user.h
 
-# These really shouldn't be exported
-unifdef-y += io.h
-
 # These probably shouldn't be exported
 unifdef-y += elf.h page.h