Adding upstream version 6.8.9.upstream/6.8.9

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

19 files changed, 23 insertions, 29 deletions

diff --git a/net/dsa/tag_ar9331.c b/net/dsa/tag_ar9331.c
index 92ce67b93a..cbb588ca73 100644
--- a/net/dsa/tag_ar9331.c
+++ b/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);
diff --git a/net/dsa/tag_brcm.c b/net/dsa/tag_brcm.c
index 83d283a5d2..8c3c068728 100644
--- a/net/dsa/tag_brcm.c
+++ b/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");
diff --git a/net/dsa/tag_dsa.c b/net/dsa/tag_dsa.c
index 8ed52dd663..2a2c4fb61a 100644
--- a/net/dsa/tag_dsa.c
+++ b/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");
diff --git a/net/dsa/tag_gswip.c b/net/dsa/tag_gswip.c
index 3539141b53..51a1f46a56 100644
--- a/net/dsa/tag_gswip.c
+++ b/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);
 
diff --git a/net/dsa/tag_hellcreek.c b/net/dsa/tag_hellcreek.c
index 6e233cd0aa..663b25785d 100644
--- a/net/dsa/tag_hellcreek.c
+++ b/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);
 
diff --git a/net/dsa/tag_ksz.c b/net/dsa/tag_ksz.c
index 9be341fa88..ee7b272ab7 100644
--- a/net/dsa/tag_ksz.c
+++ b/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");
diff --git a/net/dsa/tag_lan9303.c b/net/dsa/tag_lan9303.c
index 1ed8ee2485..258e5d7dc5 100644
--- a/net/dsa/tag_lan9303.c
+++ b/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);
 
diff --git a/net/dsa/tag_mtk.c b/net/dsa/tag_mtk.c
index 2483785f6a..b670e3c53e 100644
--- a/net/dsa/tag_mtk.c
+++ b/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);
 
diff --git a/net/dsa/tag_none.c b/net/dsa/tag_none.c
index 9a473624db..e9c9670a9c 100644
--- a/net/dsa/tag_none.c
+++ b/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");
diff --git a/net/dsa/tag_ocelot.c b/net/dsa/tag_ocelot.c
index ef2f8fffb2..e0e4300bfb 100644
--- a/net/dsa/tag_ocelot.c
+++ b/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");
diff --git a/net/dsa/tag_ocelot_8021q.c b/net/dsa/tag_ocelot_8021q.c
index 2100393208..b059381310 100644
--- a/net/dsa/tag_ocelot_8021q.c
+++ b/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);
 
diff --git a/net/dsa/tag_qca.c b/net/dsa/tag_qca.c
index 6514aa7993..0cf61286b4 100644
--- a/net/dsa/tag_qca.c
+++ b/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);
 
diff --git a/net/dsa/tag_rtl4_a.c b/net/dsa/tag_rtl4_a.c
index 4da5bad1a7..feaefa0e17 100644
--- a/net/dsa/tag_rtl4_a.c
+++ b/net/dsa/tag_rtl4_a.c
@@ -23,7 +23,6 @@
 #define RTL4_A_NAME		"rtl4a"
 
 #define RTL4_A_HDR_LEN		4
-#define RTL4_A_ETHERTYPE	0x8899
 #define RTL4_A_PROTOCOL_SHIFT	12
 /*
  * 0x1 = Realtek Remote Control protocol (RRCP)
@@ -54,7 +53,7 @@ static struct sk_buff *rtl4a_tag_xmit(struct sk_buff *skb,
 
 	/* Set Ethertype */
 	p = (__be16 *)tag;
-	*p = htons(RTL4_A_ETHERTYPE);
+	*p = htons(ETH_P_REALTEK);
 
 	out = (RTL4_A_PROTOCOL_RTL8366RB << RTL4_A_PROTOCOL_SHIFT);
 	/* The lower bits indicate the port number */
@@ -82,7 +81,7 @@ static struct sk_buff *rtl4a_tag_rcv(struct sk_buff *skb,
 	tag = dsa_etype_header_pos_rx(skb);
 	p = (__be16 *)tag;
 	etype = ntohs(*p);
-	if (etype != RTL4_A_ETHERTYPE) {
+	if (etype != ETH_P_REALTEK) {
 		/* Not custom, just pass through */
 		netdev_dbg(dev, "non-realtek ethertype 0x%04x\n", etype);
 		return skb;
@@ -122,5 +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);
diff --git a/net/dsa/tag_rtl8_4.c b/net/dsa/tag_rtl8_4.c
index 07e857deba..15c2bae2b4 100644
--- a/net/dsa/tag_rtl8_4.c
+++ b/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");
diff --git a/net/dsa/tag_rzn1_a5psw.c b/net/dsa/tag_rzn1_a5psw.c
index 2ce866b456..69d51221b1 100644
--- a/net/dsa/tag_rzn1_a5psw.c
+++ b/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);
diff --git a/net/dsa/tag_sja1105.c b/net/dsa/tag_sja1105.c
index 1fffe8c2b5..2717e9d7b6 100644
--- a/net/dsa/tag_sja1105.c
+++ b/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");
diff --git a/net/dsa/tag_trailer.c b/net/dsa/tag_trailer.c
index 1ebb25a8b1..22742a53d6 100644
--- a/net/dsa/tag_trailer.c
+++ b/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);
 
diff --git a/net/dsa/tag_xrs700x.c b/net/dsa/tag_xrs700x.c
index c9c163598e..68d4633ddd 100644
--- a/net/dsa/tag_xrs700x.c
+++ b/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);
 
diff --git a/net/dsa/user.c b/net/dsa/user.c
index a82c7f5a1a..b15e71cc34 100644
--- a/net/dsa/user.c
+++ b/net/dsa/user.c
@@ -920,30 +920,6 @@ netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev)
 }
 EXPORT_SYMBOL_GPL(dsa_enqueue_skb);
 
-static int dsa_realloc_skb(struct sk_buff *skb, struct net_device *dev)
-{
-	int needed_headroom = dev->needed_headroom;
-	int needed_tailroom = dev->needed_tailroom;
-
-	/* For tail taggers, we need to pad short frames ourselves, to ensure
-	 * that the tail tag does not fail at its role of being at the end of
-	 * the packet, once the conduit interface pads the frame. Account for
-	 * that pad length here, and pad later.
-	 */
-	if (unlikely(needed_tailroom && skb->len < ETH_ZLEN))
-		needed_tailroom += ETH_ZLEN - skb->len;
-	/* skb_headroom() returns unsigned int... */
-	needed_headroom = max_t(int, needed_headroom - skb_headroom(skb), 0);
-	needed_tailroom = max_t(int, needed_tailroom - skb_tailroom(skb), 0);
-
-	if (likely(!needed_headroom && !needed_tailroom && !skb_cloned(skb)))
-		/* No reallocation needed, yay! */
-		return 0;
-
-	return pskb_expand_head(skb, needed_headroom, needed_tailroom,
-				GFP_ATOMIC);
-}
-
 static netdev_tx_t dsa_user_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct dsa_user_priv *p = netdev_priv(dev);
@@ -956,13 +932,14 @@ static netdev_tx_t dsa_user_xmit(struct sk_buff *skb, struct net_device *dev)
 	/* Handle tx timestamp if any */
 	dsa_skb_tx_timestamp(p, skb);
 
-	if (dsa_realloc_skb(skb, dev)) {
+	if (skb_ensure_writable_head_tail(skb, dev)) {
 		dev_kfree_skb_any(skb);
 		return NETDEV_TX_OK;
 	}
 
 	/* needed_tailroom should still be 'warm' in the cache line from
-	 * dsa_realloc_skb(), which has also ensured that padding is safe.
+	 * skb_ensure_writable_head_tail(), which has also ensured that
+	 * padding is safe.
 	 */
 	if (dev->needed_tailroom)
 		eth_skb_pad(skb);