kernel: add linux 4.9 support

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Tim Harvey <tharvey@gateworks.com> [fixes]

1 files changed, 139 insertions, 0 deletions

diff --git a/target/linux/generic/patches-4.9/071-v4.10-0001-net-bgmac-allocate-struct-bgmac-just-once-don-t-copy.patch b/target/linux/generic/patches-4.9/071-v4.10-0001-net-bgmac-allocate-struct-bgmac-just-once-don-t-copy.patch
new file mode 100644
index 0000000..37639fa
--- /dev/null
+++ b/target/linux/generic/patches-4.9/071-v4.10-0001-net-bgmac-allocate-struct-bgmac-just-once-don-t-copy.patch
@@ -0,0 +1,139 @@
+From 34a5102c3235c470a6c77fba16cb971964d9c136 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Tue, 31 Jan 2017 19:37:54 +0100
+Subject: [PATCH 1/3] net: bgmac: allocate struct bgmac just once & don't copy
+ it
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+So far were were allocating struct bgmac in 3 places: platform code,
+bcma code and shared bgmac_enet_probe function. The reason for this was
+bgmac_enet_probe:
+1) Requiring early-filled struct bgmac
+2) Calling alloc_etherdev on its own in order to use netdev_priv later
+
+This solution got few drawbacks:
+1) Was duplicating allocating code
+2) Required copying early-filled struct
+3) Resulted in platform/bcma code having access only to unused struct
+
+Solve this situation by simply extracting some probe code into the new
+bgmac_alloc function.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/ethernet/broadcom/bgmac-bcma.c     |  4 +---
+ drivers/net/ethernet/broadcom/bgmac-platform.c |  2 +-
+ drivers/net/ethernet/broadcom/bgmac.c          | 25 +++++++++++++++++--------
+ drivers/net/ethernet/broadcom/bgmac.h          |  3 ++-
+ 4 files changed, 21 insertions(+), 13 deletions(-)
+
+--- a/drivers/net/ethernet/broadcom/bgmac-bcma.c
++++ b/drivers/net/ethernet/broadcom/bgmac-bcma.c
+@@ -99,12 +99,11 @@ static int bgmac_probe(struct bcma_devic
+ 	u8 *mac;
+ 	int err;
+ 
+-	bgmac = kzalloc(sizeof(*bgmac), GFP_KERNEL);
++	bgmac = bgmac_alloc(&core->dev);
+ 	if (!bgmac)
+ 		return -ENOMEM;
+ 
+ 	bgmac->bcma.core = core;
+-	bgmac->dev = &core->dev;
+ 	bgmac->dma_dev = core->dma_dev;
+ 	bgmac->irq = core->irq;
+ 
+@@ -285,7 +284,6 @@ static int bgmac_probe(struct bcma_devic
+ err1:
+ 	bcma_mdio_mii_unregister(bgmac->mii_bus);
+ err:
+-	kfree(bgmac);
+ 	bcma_set_drvdata(core, NULL);
+ 
+ 	return err;
+--- a/drivers/net/ethernet/broadcom/bgmac-platform.c
++++ b/drivers/net/ethernet/broadcom/bgmac-platform.c
+@@ -93,7 +93,7 @@ static int bgmac_probe(struct platform_d
+ 	struct resource *regs;
+ 	const u8 *mac_addr;
+ 
+-	bgmac = devm_kzalloc(&pdev->dev, sizeof(*bgmac), GFP_KERNEL);
++	bgmac = bgmac_alloc(&pdev->dev);
+ 	if (!bgmac)
+ 		return -ENOMEM;
+ 
+--- a/drivers/net/ethernet/broadcom/bgmac.c
++++ b/drivers/net/ethernet/broadcom/bgmac.c
+@@ -1459,22 +1459,32 @@ static int bgmac_phy_connect(struct bgma
+ 	return 0;
+ }
+ 
+-int bgmac_enet_probe(struct bgmac *info)
++struct bgmac *bgmac_alloc(struct device *dev)
+ {
+ 	struct net_device *net_dev;
+ 	struct bgmac *bgmac;
+-	int err;
+ 
+ 	/* Allocation and references */
+-	net_dev = alloc_etherdev(sizeof(*bgmac));
++	net_dev = devm_alloc_etherdev(dev, sizeof(*bgmac));
+ 	if (!net_dev)
+-		return -ENOMEM;
++		return NULL;
+ 
+ 	net_dev->netdev_ops = &bgmac_netdev_ops;
+ 	net_dev->ethtool_ops = &bgmac_ethtool_ops;
++
+ 	bgmac = netdev_priv(net_dev);
+-	memcpy(bgmac, info, sizeof(*bgmac));
++	bgmac->dev = dev;
+ 	bgmac->net_dev = net_dev;
++
++	return bgmac;
++}
++EXPORT_SYMBOL_GPL(bgmac_alloc);
++
++int bgmac_enet_probe(struct bgmac *bgmac)
++{
++	struct net_device *net_dev = bgmac->net_dev;
++	int err;
++
+ 	net_dev->irq = bgmac->irq;
+ 	SET_NETDEV_DEV(net_dev, bgmac->dev);
+ 
+@@ -1501,7 +1511,7 @@ int bgmac_enet_probe(struct bgmac *info)
+ 	err = bgmac_dma_alloc(bgmac);
+ 	if (err) {
+ 		dev_err(bgmac->dev, "Unable to alloc memory for DMA\n");
+-		goto err_netdev_free;
++		goto err_out;
+ 	}
+ 
+ 	bgmac->int_mask = BGMAC_IS_ERRMASK | BGMAC_IS_RX | BGMAC_IS_TX_MASK;
+@@ -1537,8 +1547,7 @@ err_phy_disconnect:
+ 	phy_disconnect(net_dev->phydev);
+ err_dma_free:
+ 	bgmac_dma_free(bgmac);
+-err_netdev_free:
+-	free_netdev(net_dev);
++err_out:
+ 
+ 	return err;
+ }
+--- a/drivers/net/ethernet/broadcom/bgmac.h
++++ b/drivers/net/ethernet/broadcom/bgmac.h
+@@ -515,7 +515,8 @@ struct bgmac {
+ 			      u32 set);
+ };
+ 
+-int bgmac_enet_probe(struct bgmac *info);
++struct bgmac *bgmac_alloc(struct device *dev);
++int bgmac_enet_probe(struct bgmac *bgmac);
+ void bgmac_enet_remove(struct bgmac *bgmac);
+ 
+ struct mii_bus *bcma_mdio_mii_register(struct bcma_device *core, u8 phyaddr);