1 files changed, 16 insertions, 9 deletions

diff --git a/arch/x86/lib/delay_32.c b/arch/x86/lib/delay_32.c
index d710f2d167bb..ef691316f8b6 100644
--- a/arch/x86/lib/delay_32.c
+++ b/arch/x86/lib/delay_32.c
@@ -3,6 +3,7 @@
  *
  *      Copyright (C) 1993 Linus Torvalds
  *      Copyright (C) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
+ *      Copyright (C) 2008 Jiri Hladky <hladky _dot_ jiri _at_ gmail _dot_ com>
  *
  *      The __delay function must _NOT_ be inlined as its execution time
  *      depends wildly on alignment on many x86 processors. The additional
@@ -28,16 +29,22 @@
 /* simple loop based delay: */
 static void delay_loop(unsigned long loops)
 {
-        int d0;
-
         __asm__ __volatile__(
-                "\tjmp 1f\n"
-                ".align 16\n"
-                "1:\tjmp 2f\n"
-                ".align 16\n"
-                "2:\tdecl %0\n\tjns 2b"
-                :"=&a" (d0)
-                :"0" (loops));
+                "       test %0,%0      \n"
+                "       jz 3f           \n"
+                "       jmp 1f          \n"
+
+                ".align 16              \n"
+                "1:     jmp 2f          \n"
+
+                ".align 16              \n"
+                "2:     decl %0         \n"
+                "       jnz 2b          \n"
+                "3:     decl %0         \n"
+
+                : /* we don't need output */
+                :"a" (loops)
+        );
 }
 
 /* TSC based delay: */