diff --git a/Documentation/ide/ide.txt b/Documentation/ide/ide.txt
index 829a618..8209033 100644
--- a/Documentation/ide/ide.txt
+++ b/Documentation/ide/ide.txt
@@ -217,11 +217,6 @@
 			  As for VLB, it is safest to not specify it.
 			  Bigger values are safer than smaller ones.
 
- "idex=serialize"	: do not overlap operations on idex. Please note
-			  that you will have to specify this option for
-			  both the respective primary and secondary channel
-			  to take effect.
-
  "idex=reset"		: reset interface after probe
 
  "ide=doubler"		: probe/support IDE doublers on Amiga
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 6cd112c..3cac96f 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -995,7 +995,7 @@
 		 * (-8, -9, -10) are reserved to ease the hardcoding.
 		 */
 		static const char *ide_words[] = {
-			"minus1", "serialize", "minus3", "minus4",
+			"minus1", "minus2", "minus3", "minus4",
 			"reset", "minus6", "ata66", "minus8", "minus9",
 			"minus10", "four", "qd65xx", "ht6560b", "cmd640_vlb",
 			"dtc2278", "umc8672", "ali14xx", NULL };
@@ -1076,12 +1076,7 @@
 			case -5: /* "reset" */
 				hwif->reset = 1;
 				goto obsolete_option;
-			case -2: /* "serialize" */
-				hwif->mate = &ide_hwifs[hw^1];
-				hwif->mate->mate = hwif;
-				hwif->serialized = hwif->mate->serialized = 1;
-				goto obsolete_option;
-
+			case -2:
 			case -1:
 			case 0:
 			case 1: