[PATCH] headers_check: remove <asm/timex.h> from user export

There's useful stuff in <linux/timex.h> but <asm/timex.h> has nothing for
userspace.  Stop exporting it, and include it only from within the existing
#ifdef __KERNEL__ part of <linux/timex.h>

This fixes a 'make headers_check' failure on i386 because asm-i386/timex.h
includes both asm-i386/tsc.h and asm-i386/processor.h, neither of which are
exported to userspace.  It's not entirely clear _why_ it includes either of
these, but it does.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/asm-generic/Kbuild.asm

@@ -2,7 +2,7 @@ unifdef-y += a.out.h auxvec.h byteorder.h errno.h fcntl.h ioctl.h	\
 	ioctls.h ipcbuf.h mman.h msgbuf.h param.h poll.h		\
 	posix_types.h ptrace.h resource.h sembuf.h shmbuf.h shmparam.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
+	statfs.h termbits.h termios.h types.h unistd.h user.h
 
 # These probably shouldn't be exported
 unifdef-y += elf.h page.h

include/linux/timex.h

@@ -57,7 +57,6 @@
 #include <linux/time.h>
 
 #include <asm/param.h>
-#include <asm/timex.h>
 
 /*
  * SHIFT_KG and SHIFT_KF establish the damping of the PLL and are chosen
@@ -191,6 +190,8 @@ struct timex {
 #define TIME_BAD	TIME_ERROR /* bw compat */
 
 #ifdef __KERNEL__
+#include <asm/timex.h>
+
 /*
  * kernel variables
  * Note: maximum error = NTP synch distance = dispersion + delay / 2;