uml: delete unused code

Get rid of a bunch of unused stuff -
	cpu_feature had no users
	linux_prog is little-used, so its declaration is moved to the
user for easy deletion when the whole file goes away
	a long-unused debugging aid in helper.c is gone

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 7 deletions

diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c
index 685feaab65d2..7aa4c2a7a593 100644
--- a/arch/um/os-Linux/main.c
+++ b/arch/um/os-Linux/main.c
@@ -25,12 +25,7 @@
 #include "os.h"
 #include "um_malloc.h"
 
-/* Set in set_stklim, which is called from main and __wrap_malloc.
- * __wrap_malloc only calls it if main hasn't started.
- */
-unsigned long stacksizelim;
-
-/* Set in main */
+/* Set in main, unchanged thereafter */
 char *linux_prog;
 
 #define PGD_BOUND (4 * 1024 * 1024)
@@ -52,7 +47,6 @@ static void set_stklim(void)
                         exit(1);
                 }
         }
-        stacksizelim = (lim.rlim_cur + PGD_BOUND - 1) & ~(PGD_BOUND - 1);
 }
 
 static __init void do_uml_initcalls(void)