net: fill in MODULE_DESCRIPTION()s for DSA tags

W=1 builds now warn if module is built without a MODULE_DESCRIPTION().
Add descriptions to all the DSA tag modules.

The descriptions are copy/pasted Kconfig names, with s/^Tag/DSA tag/.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Acked-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Acked-by: Kurt Kanzenbach <kurt@linutronix.de>
Link: https://lore.kernel.org/r/20240104143759.1318137-1-kuba@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

net/dsa/tag_ar9331.c

@@ -89,6 +89,7 @@ static const struct dsa_device_ops ar9331_netdev_ops = {
 	.needed_headroom = AR9331_HDR_LEN,
 };
 
+MODULE_DESCRIPTION("DSA tag driver for Atheros AR9331 SoC with built-in switch");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_AR9331, AR9331_NAME);
 module_dsa_tag_driver(ar9331_netdev_ops);

net/dsa/tag_brcm.c

@@ -335,4 +335,5 @@ static struct dsa_tag_driver *dsa_tag_driver_array[] =	{
 
 module_dsa_tag_drivers(dsa_tag_driver_array);
 
+MODULE_DESCRIPTION("DSA tag driver for Broadcom switches using in-frame headers");
 MODULE_LICENSE("GPL");

net/dsa/tag_dsa.c

@@ -406,4 +406,5 @@ static struct dsa_tag_driver *dsa_tag_drivers[] = {
 
 module_dsa_tag_drivers(dsa_tag_drivers);
 
+MODULE_DESCRIPTION("DSA tag driver for Marvell switches using DSA headers");
 MODULE_LICENSE("GPL");

net/dsa/tag_gswip.c

@@ -107,6 +107,7 @@ static const struct dsa_device_ops gswip_netdev_ops = {
 	.needed_headroom = GSWIP_RX_HEADER_LEN,
 };
 
+MODULE_DESCRIPTION("DSA tag driver for Lantiq / Intel GSWIP switches");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_GSWIP, GSWIP_NAME);
 

net/dsa/tag_hellcreek.c

@@ -67,6 +67,7 @@ static const struct dsa_device_ops hellcreek_netdev_ops = {
 	.needed_tailroom = HELLCREEK_TAG_LEN,
 };
 
+MODULE_DESCRIPTION("DSA tag driver for Hirschmann Hellcreek TSN switches");
 MODULE_LICENSE("Dual MIT/GPL");
 MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_HELLCREEK, HELLCREEK_NAME);
 

net/dsa/tag_ksz.c

@@ -459,4 +459,5 @@ static struct dsa_tag_driver *dsa_tag_driver_array[] = {
 
 module_dsa_tag_drivers(dsa_tag_driver_array);
 
+MODULE_DESCRIPTION("DSA tag driver for Microchip 8795/937x/9477/9893 families of switches");
 MODULE_LICENSE("GPL");

net/dsa/tag_lan9303.c

@@ -119,6 +119,7 @@ static const struct dsa_device_ops lan9303_netdev_ops = {
 	.needed_headroom = LAN9303_TAG_LEN,
 };
 
+MODULE_DESCRIPTION("DSA tag driver for SMSC/Microchip LAN9303 family of switches");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_LAN9303, LAN9303_NAME);
 

net/dsa/tag_mtk.c

@@ -102,6 +102,7 @@ static const struct dsa_device_ops mtk_netdev_ops = {
 	.needed_headroom = MTK_HDR_LEN,
 };
 
+MODULE_DESCRIPTION("DSA tag driver for Mediatek switches");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_MTK, MTK_NAME);
 

net/dsa/tag_none.c

@@ -27,4 +27,5 @@ static const struct dsa_device_ops none_ops = {
 
 module_dsa_tag_driver(none_ops);
 MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_NONE, NONE_NAME);
+MODULE_DESCRIPTION("DSA no-op tag driver");
 MODULE_LICENSE("GPL");

net/dsa/tag_ocelot.c

@@ -217,4 +217,5 @@ static struct dsa_tag_driver *ocelot_tag_driver_array[] = {
 
 module_dsa_tag_drivers(ocelot_tag_driver_array);
 
+MODULE_DESCRIPTION("DSA tag driver for Ocelot family of switches, using NPI port");
 MODULE_LICENSE("GPL v2");

net/dsa/tag_ocelot_8021q.c

@@ -133,6 +133,7 @@ static const struct dsa_device_ops ocelot_8021q_netdev_ops = {
 	.promisc_on_conduit	= true,
 };
 
+MODULE_DESCRIPTION("DSA tag driver for Ocelot family of switches, using VLAN");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_OCELOT_8021Q, OCELOT_8021Q_NAME);
 

net/dsa/tag_qca.c

@@ -119,6 +119,7 @@ static const struct dsa_device_ops qca_netdev_ops = {
 	.promisc_on_conduit = true,
 };
 
+MODULE_DESCRIPTION("DSA tag driver for Qualcomm Atheros QCA8K switches");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_QCA, QCA_NAME);
 

net/dsa/tag_rtl4_a.c

@@ -121,5 +121,6 @@ static const struct dsa_device_ops rtl4a_netdev_ops = {
 };
 module_dsa_tag_driver(rtl4a_netdev_ops);
 
+MODULE_DESCRIPTION("DSA tag driver for Realtek 4 byte protocol A tags");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_RTL4_A, RTL4_A_NAME);

net/dsa/tag_rtl8_4.c

@@ -258,4 +258,5 @@ static struct dsa_tag_driver *dsa_tag_drivers[] = {
 };
 module_dsa_tag_drivers(dsa_tag_drivers);
 
+MODULE_DESCRIPTION("DSA tag driver for Realtek 8 byte protocol 4 tags");
 MODULE_LICENSE("GPL");

net/dsa/tag_rzn1_a5psw.c

@@ -110,6 +110,7 @@ static const struct dsa_device_ops a5psw_netdev_ops = {
 	.needed_headroom = A5PSW_TAG_LEN,
 };
 
+MODULE_DESCRIPTION("DSA tag driver for Renesas RZ/N1 A5PSW switch");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_A5PSW, A5PSW_NAME);
 module_dsa_tag_driver(a5psw_netdev_ops);

net/dsa/tag_sja1105.c

@@ -806,4 +806,5 @@ static struct dsa_tag_driver *sja1105_tag_driver_array[] = {
 
 module_dsa_tag_drivers(sja1105_tag_driver_array);
 
+MODULE_DESCRIPTION("DSA tag driver for NXP SJA1105 switches");
 MODULE_LICENSE("GPL v2");

net/dsa/tag_trailer.c

@@ -59,6 +59,7 @@ static const struct dsa_device_ops trailer_netdev_ops = {
 	.needed_tailroom = 4,
 };
 
+MODULE_DESCRIPTION("DSA tag driver for switches using a trailer tag");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_TRAILER, TRAILER_NAME);
 

net/dsa/tag_xrs700x.c

@@ -60,6 +60,7 @@ static const struct dsa_device_ops xrs700x_netdev_ops = {
 	.needed_tailroom = 1,
 };
 
+MODULE_DESCRIPTION("DSA tag driver for XRS700x switches");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_XRS700X, XRS700X_NAME);