diff --git a/[refs] b/[refs]
index 6d4398a1156e..6effe9077c50 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 61d79a8eb362f826a002d3d14c4f9a070a818542
+refs/heads/master: 4bca3286433585b5f1c3e7d8ac37a2f4b3def9ca
diff --git a/trunk/drivers/ata/libata-scsi.c b/trunk/drivers/ata/libata-scsi.c
index d1718a1f278a..342316064e9f 100644
--- a/trunk/drivers/ata/libata-scsi.c
+++ b/trunk/drivers/ata/libata-scsi.c
@@ -2142,13 +2142,14 @@ static unsigned int ata_scsiop_inq_89(struct ata_scsi_args *args, u8 *rbuf)
 
 static unsigned int ata_scsiop_inq_b1(struct ata_scsi_args *args, u8 *rbuf)
 {
+	int form_factor = ata_id_form_factor(args->id);
+	int media_rotation_rate = ata_id_rotation_rate(args->id);
+
 	rbuf[1] = 0xb1;
 	rbuf[3] = 0x3c;
-	if (ata_id_major_version(args->id) > 7) {
-		rbuf[4] = args->id[217] >> 8;
-		rbuf[5] = args->id[217];
-		rbuf[7] = args->id[168] & 0xf;
-	}
+	rbuf[4] = media_rotation_rate >> 8;
+	rbuf[5] = media_rotation_rate;
+	rbuf[7] = form_factor;
 
 	return 0;
 }
diff --git a/trunk/include/linux/ata.h b/trunk/include/linux/ata.h
index cb79b7a208e1..915da43edee1 100644
--- a/trunk/include/linux/ata.h
+++ b/trunk/include/linux/ata.h
@@ -730,6 +730,34 @@ static inline int ata_id_has_unload(const u16 *id)
 	return 0;
 }
 
+static inline int ata_id_form_factor(const u16 *id)
+{
+	u16 val = id[168];
+
+	if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff)
+		return 0;
+
+	val &= 0xf;
+
+	if (val > 5)
+		return 0;
+
+	return val;
+}
+
+static inline int ata_id_rotation_rate(const u16 *id)
+{
+	u16 val = id[217];
+
+	if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff)
+		return 0;
+
+	if (val > 1 && val < 0x401)
+		return 0;
+
+	return val;
+}
+
 static inline int ata_id_has_trim(const u16 *id)
 {
 	if (ata_id_major_version(id) >= 7 &&