From: Jakub Kicinski <kuba@kernel.org>
Date: Mon, 18 Oct 2021 16:50:12 -0700
Subject: atmel: use eth_hw_addr_set()
Patch-mainline: v5.16-rc1
Git-commit: 251277af9c4fccc8969dbd56acebf11825d2c69c
References: jsc#PED-1565
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it got through appropriate helpers.
Use a buffer on the stack. Note that atmel_get_mib() is a wrapper
around atmel_copy_to_host(). For the to device direction we just
need to make sure functions respect argument being cost.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211018235021.1279697-7-kuba@kernel.org
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/wireless/atmel/atmel.c | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)
--- a/drivers/net/wireless/atmel/atmel.c
+++ b/drivers/net/wireless/atmel/atmel.c
@@ -600,7 +600,7 @@ static void atmel_set_mib8(struct atmel_
static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index,
u16 data);
static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index,
- u8 *data, int data_len);
+ const u8 *data, int data_len);
static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index,
u8 *data, int data_len);
static void atmel_scan(struct atmel_private *priv, int specific_ssid);
@@ -3669,6 +3669,7 @@ static int probe_atmel_card(struct net_d
{
int rc = 0;
struct atmel_private *priv = netdev_priv(dev);
+ u8 addr[ETH_ALEN] = {};
/* reset pccard */
if (priv->bus_type == BUS_TYPE_PCCARD)
@@ -3693,7 +3694,9 @@ static int probe_atmel_card(struct net_d
if (i == 0) {
printk(KERN_ALERT "%s: MAC failed to boot MAC address reader.\n", dev->name);
} else {
- atmel_copy_to_host(dev, dev->dev_addr, atmel_read16(dev, MR2), 6);
+
+ atmel_copy_to_host(dev, addr, atmel_read16(dev, MR2), 6);
+ eth_hw_addr_set(dev, addr);
/* got address, now squash it again until the network
interface is opened */
if (priv->bus_type == BUS_TYPE_PCCARD)
@@ -3705,7 +3708,8 @@ static int probe_atmel_card(struct net_d
/* Mac address easy in this case. */
priv->card_type = CARD_TYPE_PARALLEL_FLASH;
atmel_write16(dev, BSR, 1);
- atmel_copy_to_host(dev, dev->dev_addr, 0xc000, 6);
+ atmel_copy_to_host(dev, addr, 0xc000, 6);
+ eth_hw_addr_set(dev, addr);
atmel_write16(dev, BSR, 0x200);
rc = 1;
} else {
@@ -3713,7 +3717,8 @@ static int probe_atmel_card(struct net_d
for the Mac Address */
priv->card_type = CARD_TYPE_SPI_FLASH;
if (atmel_wakeup_firmware(priv) == 0) {
- atmel_get_mib(priv, Mac_Address_Mib_Type, 0, dev->dev_addr, 6);
+ atmel_get_mib(priv, Mac_Address_Mib_Type, 0, addr, 6);
+ eth_hw_addr_set(dev, addr);
/* got address, now squash it again until the network
interface is opened */
@@ -4103,7 +4108,7 @@ static void atmel_set_mib16(struct atmel
}
static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index,
- u8 *data, int data_len)
+ const u8 *data, int data_len)
{
struct get_set_mib m;
m.type = type;