--- include/linux/mtd/compatmac.h.orig	Mon Aug 30 09:17:28 2004
+++ include/linux/mtd/compatmac.h	Mon Aug 30 11:22:18 2004
@@ -64,6 +64,22 @@
 
 #include <linux/sched.h>
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+/**
+ *   * __ffs - find first bit in word.
+ *     * @word: The word to search
+ *       *
+ *         * Undefined if no bit exists, so code should check against 0 first.
+ *           */
+static inline unsigned long __ffs(unsigned long word)
+{
+	__asm__("bsfl %1,%0"
+	:"=r" (word)
+	:"rm" (word));
+	return word;
+}
+#endif /* < 2.5.0 */
+
 #ifdef __rh_config_h__
 #define sigmask_lock sighand->siglock
 #define sig sighand