[PATCH RFC] 2.5.73 zlib #2 codefold

[Jörn Engel]

This patch folds three calls to memmove_update into one.  This is the
same structure that was in the 1.1.3 version of the zlib as well.  The
change towards 1.1.4 was mixed with a real bugfix, so it slipped
through my brain.

Jörn

-- 
When you close your hand, you own nothing. When you open it up, you
own the whole world.
-- Li Mu Bai in Tiger & Dragon

--- linux-2.5.73/lib/zlib_inflate/inffast.c~zlib_codefold	2003-06-30 03:57:31.000000000 +0200
+++ linux-2.5.73/lib/zlib_inflate/inffast.c	2003-06-30 04:11:37.000000000 +0200
@@ -99,28 +99,18 @@
             /* do the copy */
             m -= c;
             r = q - d;
-            if (r < s->window)                  /* wrap if needed */
-            {
-              do {
+            if (r < s->window) {                /* wrap if needed */
+	      while (r < s->window) {
                 r += s->end - s->window;        /* force pointer in window */
-              } while (r < s->window);          /* covers invalid distances */
+              }                                 /* covers invalid distances */
               e = s->end - r;
-              if (c > e)
-              {
+              if (c > e) {
                 c -= e;                         /* wrapped copy */
 		memmove_update(&q, &r, &e);
                 r = s->window;
-		memmove_update(&q, &r, &c);
-              }
-              else                              /* normal copy */
-              {
-		memmove_update(&q, &r, &c);
               }
             }
-            else                                /* normal copy */
-            {
-              memmove_update(&q, &r, &c);
-            }
+            memmove_update(&q, &r, &c);
             break;
           }
           else if ((e & 64) == 0)