From: =?UTF-8?q?Antoine=20T=C3=A9nart?= <antoine.tenart@free-electrons.com>
Date: Wed, 23 Aug 2017 09:46:54 +0200
Subject: net: define the TSO header size in net/tso.h
Patch-mainline: v4.14-rc1
Git-commit: f9cbe9a556afca9e82df9aebe4412d93769566b5
References: bsc#1098633

The TSO header size was defined in many drivers. Factorize the code and
define its size in net/tso.h.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/cavium/thunder/nicvf_queues.h |    1 -
 drivers/net/ethernet/freescale/fec_main.c          |    1 -
 drivers/net/ethernet/marvell/mv643xx_eth.c         |    2 --
 drivers/net/ethernet/marvell/mvneta.c              |    3 ---
 include/net/tso.h                                  |    2 ++
 5 files changed, 2 insertions(+), 7 deletions(-)

--- a/drivers/net/ethernet/cavium/thunder/nicvf_queues.h
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_queues.h
@@ -277,7 +277,6 @@ struct snd_queue {
 	u16		xdp_free_cnt;
 	bool		is_xdp;
 
-#define	TSO_HEADER_SIZE	128
 	/* For TSO segment's header */
 	char		*tso_hdrs;
 	dma_addr_t	tso_hdrs_phys;
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -223,7 +223,6 @@ MODULE_PARM_DESC(macaddr, "FEC Ethernet
 
 #define COPYBREAK_DEFAULT	256
 
-#define TSO_HEADER_SIZE		128
 /* Max number of allowed TCP segments for software TSO */
 #define FEC_MAX_TSO_SEGS	100
 #define FEC_MAX_SKB_DESCS	(FEC_MAX_TSO_SEGS * 2 + MAX_SKB_FRAGS)
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -183,8 +183,6 @@ static char mv643xx_eth_driver_version[]
 #define DEFAULT_TX_QUEUE_SIZE	512
 #define SKB_DMA_REALIGN		((PAGE_SIZE - NET_SKB_PAD) % SMP_CACHE_BYTES)
 
-#define TSO_HEADER_SIZE		128
-
 /* Max number of allowed TCP segments for software TSO */
 #define MV643XX_MAX_TSO_SEGS 100
 #define MV643XX_MAX_SKB_DESCS (MV643XX_MAX_TSO_SEGS * 2 + MAX_SKB_FRAGS)
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -281,9 +281,6 @@
  */
 #define MVNETA_RSS_LU_TABLE_SIZE	1
 
-/* TSO header size */
-#define TSO_HEADER_SIZE 128
-
 /* Max number of Rx descriptors */
 #define MVNETA_MAX_RXD 128
 
--- a/include/net/tso.h
+++ b/include/net/tso.h
@@ -3,6 +3,8 @@
 
 #include <net/ip.h>
 
+#define TSO_HEADER_SIZE		128
+
 struct tso_t {
 	int next_frag_idx;
 	void *data;