net: ethernet: ti: cpsw: drop CPSW_HEADROOM define

Since commit 1771afd4 ("net: cpsw: avoid alignment faults by taking
NET_IP_ALIGN into account") the TI CPSW driver was switched to use correct
define CPSW_HEADROOM_NA to avoid alignment faults, but there are two places
left where CPSW_HEADROOM is still used (without causing issues).

Hence, completely drop CPSW_HEADROOM define and use CPSW_HEADROOM_NA
everywhere to avoid further mistakes in code.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/ti/cpsw.c

@@ -335,7 +335,7 @@ static void cpsw_ndo_set_rx_mode(struct net_device *ndev)
 
 static unsigned int cpsw_rxbuf_total_len(unsigned int len)
 {
-	len += CPSW_HEADROOM;
+	len += CPSW_HEADROOM_NA;
 	len += SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
 
 	return SKB_DATA_ALIGN(len);

drivers/net/ethernet/ti/cpsw_new.c

@@ -273,7 +273,7 @@ static void cpsw_ndo_set_rx_mode(struct net_device *ndev)
 
 static unsigned int cpsw_rxbuf_total_len(unsigned int len)
 {
-	len += CPSW_HEADROOM;
+	len += CPSW_HEADROOM_NA;
 	len += SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
 
 	return SKB_DATA_ALIGN(len);

drivers/net/ethernet/ti/cpsw_priv.h

@@ -411,7 +411,6 @@ struct __aligned(sizeof(long)) cpsw_meta_xdp {
 
 /* The buf includes headroom compatible with both skb and xdpf */
 #define CPSW_HEADROOM_NA (max(XDP_PACKET_HEADROOM, NET_SKB_PAD) + NET_IP_ALIGN)
-#define CPSW_HEADROOM  ALIGN(CPSW_HEADROOM_NA, sizeof(long))
 
 static inline int cpsw_is_xdpf_handle(void *handle)
 {