drivers/net: Remove casts of void *

Unnecessary casts of void * clutter the code.

These are the remainder casts after several specific
patches to remove netdev_priv and dev_priv.

Done via coccinelle script (and a little editing):

$ cat cast_void_pointer.cocci
@@
type T;
T *pt;
void *pv;
@@

- pt = (T *)pv;
+ pt = pv;

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Acked-By: Chris Snook <chris.snook@gmail.com>
Acked-by: Jon Mason <jdmason@kudzu.us>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: David Dillow <dave@thedillows.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/benet/be_ethtool.c b/drivers/net/benet/be_ethtool.c
index 84e03a7..30c1386 100644
--- a/drivers/net/benet/be_ethtool.c
+++ b/drivers/net/benet/be_ethtool.c
@@ -408,7 +408,7 @@
 		}
 		status = be_cmd_get_phy_info(adapter, &phy_cmd);
 		if (!status) {
-			resp = (struct be_cmd_resp_get_phy_info *) phy_cmd.va;
+			resp = phy_cmd.va;
 			intf_type = le16_to_cpu(resp->interface_type);
 
 			switch (intf_type) {
@@ -712,7 +712,7 @@
 	status = be_cmd_get_seeprom_data(adapter, &eeprom_cmd);
 
 	if (!status) {
-		resp = (struct be_cmd_resp_seeprom_read *) eeprom_cmd.va;
+		resp = eeprom_cmd.va;
 		memcpy(data, resp->seeprom_data + eeprom->offset, eeprom->len);
 	}
 	dma_free_coherent(&adapter->pdev->dev, eeprom_cmd.size, eeprom_cmd.va,