kernel: bump 4.9 to 4.9.77

Refresh patches.
Remove upstreamed patches:

target/linux/generic/backport-4.9/023-2-smsc75xx-use-skb_cow_head-to-deal-with-cloned-skbs.patch
target/linux/generic/backport-4.9/023-3-cx82310_eth-use-skb_cow_head-to-deal-with-cloned-skb.patch
target/linux/generic/backport-4.9/023-4-sr9700-use-skb_cow_head-to-deal-with-cloned-skbs.patch
target/linux/generic/backport-4.9/023-5-lan78xx-use-skb_cow_head-to-deal-with-cloned-skbs.patch

CVEs completely or partially addressed:

CVE-2017-5715
CVE-2017-5753
CVE-2017-17741
CVE-2017-1000410

Compile-tested: ar71xx Archer C7 v2
Run-tested: ar71xx Archer C7 v2

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>

5 files changed, 1 insertions, 147 deletions

diff --git a/target/linux/generic/backport-4.9/023-2-smsc75xx-use-skb_cow_head-to-deal-with-cloned-skbs.patch b/target/linux/generic/backport-4.9/023-2-smsc75xx-use-skb_cow_head-to-deal-with-cloned-skbs.patch
deleted file mode 100644
index 99d98e101c..0000000000
--- a/target/linux/generic/backport-4.9/023-2-smsc75xx-use-skb_cow_head-to-deal-with-cloned-skbs.patch
+++ /dev/null
@@ -1,36 +0,0 @@
-From b7c6d2675899cfff0180412c63fc9cbd5bacdb4d Mon Sep 17 00:00:00 2001
-From: Eric Dumazet <edumazet@google.com>
-Date: Wed, 19 Apr 2017 09:59:21 -0700
-Subject: [PATCH] smsc75xx: use skb_cow_head() to deal with cloned skbs
-
-We need to ensure there is enough headroom to push extra header,
-but we also need to check if we are allowed to change headers.
-
-skb_cow_head() is the proper helper to deal with this.
-
-Fixes: d0cad871703b ("smsc75xx: SMSC LAN75xx USB gigabit ethernet adapter driver")
-Signed-off-by: Eric Dumazet <edumazet@google.com>
-Cc: James Hughes <james.hughes@raspberrypi.org>
-Signed-off-by: David S. Miller <davem@davemloft.net>
----
- drivers/net/usb/smsc75xx.c | 8 ++------
- 1 file changed, 2 insertions(+), 6 deletions(-)
-
---- a/drivers/net/usb/smsc75xx.c
-+++ b/drivers/net/usb/smsc75xx.c
-@@ -2205,13 +2205,9 @@ static struct sk_buff *smsc75xx_tx_fixup
- {
- 	u32 tx_cmd_a, tx_cmd_b;
- 
--	if (skb_headroom(skb) < SMSC75XX_TX_OVERHEAD) {
--		struct sk_buff *skb2 =
--			skb_copy_expand(skb, SMSC75XX_TX_OVERHEAD, 0, flags);
-+	if (skb_cow_head(skb, SMSC75XX_TX_OVERHEAD)) {
- 		dev_kfree_skb_any(skb);
--		skb = skb2;
--		if (!skb)
--			return NULL;
-+		return NULL;
- 	}
- 
- 	tx_cmd_a = (u32)(skb->len & TX_CMD_A_LEN) | TX_CMD_A_FCS;
diff --git a/target/linux/generic/backport-4.9/023-3-cx82310_eth-use-skb_cow_head-to-deal-with-cloned-skb.patch b/target/linux/generic/backport-4.9/023-3-cx82310_eth-use-skb_cow_head-to-deal-with-cloned-skb.patch
deleted file mode 100644
index aee8aa9805..0000000000
--- a/target/linux/generic/backport-4.9/023-3-cx82310_eth-use-skb_cow_head-to-deal-with-cloned-skb.patch
+++ /dev/null
@@ -1,35 +0,0 @@
-From a9e840a2081ed28c2b7caa6a9a0041c950b3c37d Mon Sep 17 00:00:00 2001
-From: Eric Dumazet <edumazet@google.com>
-Date: Wed, 19 Apr 2017 09:59:22 -0700
-Subject: [PATCH] cx82310_eth: use skb_cow_head() to deal with cloned skbs
-
-We need to ensure there is enough headroom to push extra header,
-but we also need to check if we are allowed to change headers.
-
-skb_cow_head() is the proper helper to deal with this.
-
-Fixes: cc28a20e77b2 ("introduce cx82310_eth: Conexant CX82310-based ADSL router USB ethernet driver")
-Signed-off-by: Eric Dumazet <edumazet@google.com>
-Cc: James Hughes <james.hughes@raspberrypi.org>
-Signed-off-by: David S. Miller <davem@davemloft.net>
----
- drivers/net/usb/cx82310_eth.c | 7 ++-----
- 1 file changed, 2 insertions(+), 5 deletions(-)
-
---- a/drivers/net/usb/cx82310_eth.c
-+++ b/drivers/net/usb/cx82310_eth.c
-@@ -293,12 +293,9 @@ static struct sk_buff *cx82310_tx_fixup(
- {
- 	int len = skb->len;
- 
--	if (skb_headroom(skb) < 2) {
--		struct sk_buff *skb2 = skb_copy_expand(skb, 2, 0, flags);
-+	if (skb_cow_head(skb, 2)) {
- 		dev_kfree_skb_any(skb);
--		skb = skb2;
--		if (!skb)
--			return NULL;
-+		return NULL;
- 	}
- 	skb_push(skb, 2);
- 
diff --git a/target/linux/generic/backport-4.9/023-4-sr9700-use-skb_cow_head-to-deal-with-cloned-skbs.patch b/target/linux/generic/backport-4.9/023-4-sr9700-use-skb_cow_head-to-deal-with-cloned-skbs.patch
deleted file mode 100644
index 4d0fcf6fc2..0000000000
--- a/target/linux/generic/backport-4.9/023-4-sr9700-use-skb_cow_head-to-deal-with-cloned-skbs.patch
+++ /dev/null
@@ -1,37 +0,0 @@
-From d532c1082f68176363ed766d09bf187616e282fe Mon Sep 17 00:00:00 2001
-From: Eric Dumazet <edumazet@google.com>
-Date: Wed, 19 Apr 2017 09:59:23 -0700
-Subject: [PATCH] sr9700: use skb_cow_head() to deal with cloned skbs
-
-We need to ensure there is enough headroom to push extra header,
-but we also need to check if we are allowed to change headers.
-
-skb_cow_head() is the proper helper to deal with this.
-
-Fixes: c9b37458e956 ("USB2NET : SR9700 : One chip USB 1.1 USB2NET SR9700Device Driver Support")
-Signed-off-by: Eric Dumazet <edumazet@google.com>
-Cc: James Hughes <james.hughes@raspberrypi.org>
-Signed-off-by: David S. Miller <davem@davemloft.net>
----
- drivers/net/usb/sr9700.c | 9 ++-------
- 1 file changed, 2 insertions(+), 7 deletions(-)
-
---- a/drivers/net/usb/sr9700.c
-+++ b/drivers/net/usb/sr9700.c
-@@ -456,14 +456,9 @@ static struct sk_buff *sr9700_tx_fixup(s
- 
- 	len = skb->len;
- 
--	if (skb_headroom(skb) < SR_TX_OVERHEAD) {
--		struct sk_buff *skb2;
--
--		skb2 = skb_copy_expand(skb, SR_TX_OVERHEAD, 0, flags);
-+	if (skb_cow_head(skb, SR_TX_OVERHEAD)) {
- 		dev_kfree_skb_any(skb);
--		skb = skb2;
--		if (!skb)
--			return NULL;
-+		return NULL;
- 	}
- 
- 	__skb_push(skb, SR_TX_OVERHEAD);
diff --git a/target/linux/generic/backport-4.9/023-5-lan78xx-use-skb_cow_head-to-deal-with-cloned-skbs.patch b/target/linux/generic/backport-4.9/023-5-lan78xx-use-skb_cow_head-to-deal-with-cloned-skbs.patch
deleted file mode 100644
index ea8279940b..0000000000
--- a/target/linux/generic/backport-4.9/023-5-lan78xx-use-skb_cow_head-to-deal-with-cloned-skbs.patch
+++ /dev/null
@@ -1,38 +0,0 @@
-From d4ca73591916b760478d2b04334d5dcadc028e9c Mon Sep 17 00:00:00 2001
-From: Eric Dumazet <edumazet@google.com>
-Date: Wed, 19 Apr 2017 09:59:24 -0700
-Subject: [PATCH] lan78xx: use skb_cow_head() to deal with cloned skbs
-
-We need to ensure there is enough headroom to push extra header,
-but we also need to check if we are allowed to change headers.
-
-skb_cow_head() is the proper helper to deal with this.
-
-Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver")
-Signed-off-by: Eric Dumazet <edumazet@google.com>
-Cc: James Hughes <james.hughes@raspberrypi.org>
-Cc: Woojung Huh <woojung.huh@microchip.com>
-Signed-off-by: David S. Miller <davem@davemloft.net>
----
- drivers/net/usb/lan78xx.c | 9 ++-------
- 1 file changed, 2 insertions(+), 7 deletions(-)
-
---- a/drivers/net/usb/lan78xx.c
-+++ b/drivers/net/usb/lan78xx.c
-@@ -2419,14 +2419,9 @@ static struct sk_buff *lan78xx_tx_prep(s
- {
- 	u32 tx_cmd_a, tx_cmd_b;
- 
--	if (skb_headroom(skb) < TX_OVERHEAD) {
--		struct sk_buff *skb2;
--
--		skb2 = skb_copy_expand(skb, TX_OVERHEAD, 0, flags);
-+	if (skb_cow_head(skb, TX_OVERHEAD)) {
- 		dev_kfree_skb_any(skb);
--		skb = skb2;
--		if (!skb)
--			return NULL;
-+		return NULL;
- 	}
- 
- 	if (lan78xx_linearize(skb) < 0)
diff --git a/target/linux/generic/backport-4.9/090-net-generalize-napi_complete_done.patch b/target/linux/generic/backport-4.9/090-net-generalize-napi_complete_done.patch
index aaa7435196..5c6e334b19 100644
--- a/target/linux/generic/backport-4.9/090-net-generalize-napi_complete_done.patch
+++ b/target/linux/generic/backport-4.9/090-net-generalize-napi_complete_done.patch
@@ -1095,7 +1095,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
  		dma_intr_ena = smsc9420_reg_read(pd, DMAC_INTR_ENA);
 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
 +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
-@@ -2678,7 +2678,7 @@ static int stmmac_poll(struct napi_struc
+@@ -2684,7 +2684,7 @@ static int stmmac_poll(struct napi_struc
  
  	work_done = stmmac_rx(priv, budget);
  	if (work_done < budget) {