enic: misc cleanup items:

Clarrify reading PBA has no side-effect (clearing).
Add missing GPL license text.

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/enic/vnic_intr.h

@@ -78,7 +78,7 @@ static inline void vnic_intr_return_credits(struct vnic_intr *intr,
 
 static inline u32 vnic_intr_legacy_pba(u32 __iomem *legacy_pba)
 {
-	/* get and ack interrupt in one read (clear-and-ack-on-read) */
+	/* read PBA without clearing */
 	return ioread32(legacy_pba);
 }
 

drivers/net/enic/vnic_resource.h

@@ -38,7 +38,7 @@ enum vnic_res_type {
 	RES_TYPE_INTR_CTRL,		/* Interrupt ctrl table */
 	RES_TYPE_INTR_TABLE,		/* MSI/MSI-X Interrupt table */
 	RES_TYPE_INTR_PBA,		/* MSI/MSI-X PBA table */
-	RES_TYPE_INTR_PBA_LEGACY,	/* Legacy intr status, r2c */
+	RES_TYPE_INTR_PBA_LEGACY,	/* Legacy intr status */
 	RES_TYPE_RSVD6,
 	RES_TYPE_RSVD7,
 	RES_TYPE_DEVCMD,		/* Device command region */

drivers/net/enic/vnic_rss.h

@@ -1,6 +1,19 @@
 /*
  * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
  */
 
 #ifndef _VNIC_RSS_H_