Avoid unnecessary call to post_word_load();
make logbuf compile without POST
diff --git a/include/asm-ppc/global_data.h b/include/asm-ppc/global_data.h
index 19c7fd8..e3aa25d 100644
--- a/include/asm-ppc/global_data.h
+++ b/include/asm-ppc/global_data.h
@@ -70,7 +70,7 @@
#if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
unsigned long fb_base; /* Base address of framebuffer memory */
#endif
-#ifdef CONFIG_POST
+#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
unsigned long post_log_word; /* Record POST activities */
unsigned long post_init_f_time; /* When post_init_f started */
#endif