From: Jakub Kicinski <kuba@kernel.org>
To: kvalo@codeaurora.org
Cc: linux-wireless@vger.kernel.org, Jakub Kicinski <kuba@kernel.org>,
simon@thekelleys.org.uk
Subject: [PATCH 06/15] wireless: atmel: use eth_hw_addr_set()
Date: Mon, 18 Oct 2021 16:50:12 -0700 [thread overview]
Message-ID: <20211018235021.1279697-7-kuba@kernel.org> (raw)
In-Reply-To: <20211018235021.1279697-1-kuba@kernel.org>
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>
---
CC: simon@thekelleys.org.uk
CC: kvalo@codeaurora.org
CC: linux-wireless@vger.kernel.org
---
drivers/net/wireless/atmel/atmel.c | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/atmel/atmel.c b/drivers/net/wireless/atmel/atmel.c
index 8290cf881a1b..35c2e798d98b 100644
--- 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_private *priv, u8 type, u8 index,
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_device *dev)
{
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_device *dev)
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_device *dev)
/* 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_device *dev)
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_private *priv, u8 type, u8 index,
}
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;
--
2.31.1
next prev parent reply other threads:[~2021-10-18 23:50 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-18 23:50 [PATCH 00/15] wireless: don't write to netdev->dev_addr directly Jakub Kicinski
2021-10-18 23:50 ` [PATCH 01/15] wireless: use eth_hw_addr_set() Jakub Kicinski
2021-10-20 9:40 ` Kalle Valo
2021-10-18 23:50 ` [PATCH 02/15] wireless: use eth_hw_addr_set() instead of ether_addr_copy() Jakub Kicinski
2021-10-18 23:50 ` [PATCH 03/15] wireless: use eth_hw_addr_set() for dev->addr_len cases Jakub Kicinski
2021-10-18 23:50 ` [PATCH 04/15] wireless: ath6kl: use eth_hw_addr_set() Jakub Kicinski
2021-10-18 23:50 ` [PATCH 05/15] wireless: wil6210: " Jakub Kicinski
2021-10-18 23:50 ` Jakub Kicinski [this message]
2021-10-18 23:50 ` [PATCH 07/15] wireless: brcmfmac: prepare for const netdev->dev_addr Jakub Kicinski
2021-10-18 23:50 ` [PATCH 08/15] wireless: cisco: use eth_hw_addr_set() Jakub Kicinski
2021-10-19 6:24 ` Sebastian Andrzej Siewior
2021-10-18 23:50 ` [PATCH 09/15] wireless: ipw2200: prepare for const netdev->dev_addr Jakub Kicinski
2021-10-24 11:53 ` Stanislav Yakovlev
2021-10-18 23:50 ` [PATCH 10/15] wireless: intersil: use eth_hw_addr_set() Jakub Kicinski
2021-10-18 23:50 ` [PATCH 11/15] wireless: mac80211_hwsim: " Jakub Kicinski
2021-10-18 23:50 ` [PATCH 12/15] wireless: wilc1000: " Jakub Kicinski
2021-10-18 23:50 ` [PATCH 13/15] wireless: ray_cs: " Jakub Kicinski
2021-10-18 23:50 ` [PATCH 14/15] wireless: wl3501_cs: " Jakub Kicinski
2021-10-18 23:50 ` [PATCH 15/15] wireless: zd1201: " Jakub Kicinski
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