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Message-Id: <20211006154426.3222199-7-kuba@kernel.org>
Date: Wed, 6 Oct 2021 08:44:23 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, gregkh@...uxfoundation.org,
rafael@...nel.org, saravanak@...gle.com, mw@...ihalf.com,
andrew@...n.ch, jeremy.linton@....com, hkallweit1@...il.com,
linux@...linux.org.uk, robh+dt@...nel.org, frowand.list@...il.com,
heikki.krogerus@...ux.intel.com, devicetree@...r.kernel.org,
Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net-next v2 6/9] eth: fwnode: remove the addr len from mac helpers
All callers pass in ETH_ALEN and the function itself
will return -EINVAL for any other address length.
Just assume it's ETH_ALEN like all other mac address
helpers (nvm, of, platform).
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
v2: new patch
---
drivers/net/ethernet/apm/xgene-v2/main.c | 2 +-
.../net/ethernet/apm/xgene/xgene_enet_main.c | 2 +-
.../net/ethernet/broadcom/genet/bcmgenet.c | 2 +-
.../net/ethernet/cavium/thunder/thunder_bgx.c | 2 +-
drivers/net/ethernet/faraday/ftgmac100.c | 2 +-
drivers/net/ethernet/hisilicon/hns/hns_enet.c | 2 +-
.../net/ethernet/marvell/mvpp2/mvpp2_main.c | 2 +-
drivers/net/ethernet/microchip/enc28j60.c | 2 +-
drivers/net/ethernet/qualcomm/emac/emac.c | 2 +-
drivers/net/ethernet/smsc/smsc911x.c | 2 +-
drivers/net/ethernet/socionext/netsec.c | 2 +-
drivers/net/wireless/ath/ath10k/core.c | 2 +-
include/linux/etherdevice.h | 4 ++--
net/ethernet/eth.c | 21 +++++++------------
14 files changed, 22 insertions(+), 27 deletions(-)
diff --git a/drivers/net/ethernet/apm/xgene-v2/main.c b/drivers/net/ethernet/apm/xgene-v2/main.c
index c7253ecc0fa5..d1ebd153b7a8 100644
--- a/drivers/net/ethernet/apm/xgene-v2/main.c
+++ b/drivers/net/ethernet/apm/xgene-v2/main.c
@@ -36,7 +36,7 @@ static int xge_get_resources(struct xge_pdata *pdata)
return -ENOMEM;
}
- if (device_get_mac_address(dev, ndev->dev_addr, ETH_ALEN))
+ if (device_get_mac_address(dev, ndev->dev_addr))
eth_hw_addr_random(ndev);
memcpy(ndev->perm_addr, ndev->dev_addr, ndev->addr_len);
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
index 268e099aa5e1..4a5bf13ffae2 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
@@ -1731,7 +1731,7 @@ static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata)
xgene_get_port_id_acpi(dev, pdata);
#endif
- if (device_get_mac_address(dev, ndev->dev_addr, ETH_ALEN))
+ if (device_get_mac_address(dev, ndev->dev_addr))
eth_hw_addr_random(ndev);
memcpy(ndev->perm_addr, ndev->dev_addr, ndev->addr_len);
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index 30c5dcaea802..e61b687d33ba 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -4084,7 +4084,7 @@ static int bcmgenet_probe(struct platform_device *pdev)
if (pd && !IS_ERR_OR_NULL(pd->mac_address))
eth_hw_addr_set(dev, pd->mac_address);
else
- if (device_get_mac_address(&pdev->dev, dev->dev_addr, ETH_ALEN))
+ if (device_get_mac_address(&pdev->dev, dev->dev_addr))
if (has_acpi_companion(&pdev->dev))
bcmgenet_get_hw_addr(priv, dev->dev_addr);
diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
index 77ce81633cdc..574a32f23f96 100644
--- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
+++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
@@ -1389,7 +1389,7 @@ static int acpi_get_mac_address(struct device *dev, struct acpi_device *adev,
u8 mac[ETH_ALEN];
int ret;
- ret = fwnode_get_mac_address(acpi_fwnode_handle(adev), mac, ETH_ALEN);
+ ret = fwnode_get_mac_address(acpi_fwnode_handle(adev), mac);
if (ret) {
dev_err(dev, "MAC address invalid: %pM\n", mac);
return -EINVAL;
diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
index 8de9c99a18fb..86c2986395de 100644
--- a/drivers/net/ethernet/faraday/ftgmac100.c
+++ b/drivers/net/ethernet/faraday/ftgmac100.c
@@ -183,7 +183,7 @@ static void ftgmac100_initial_mac(struct ftgmac100 *priv)
unsigned int m;
unsigned int l;
- if (!device_get_mac_address(priv->dev, mac, ETH_ALEN)) {
+ if (!device_get_mac_address(priv->dev, mac)) {
eth_hw_addr_set(priv->netdev, mac);
dev_info(priv->dev, "Read MAC address %pM from device tree\n",
mac);
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index 12b916399ba7..1195f64fb161 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -1212,7 +1212,7 @@ static void hns_init_mac_addr(struct net_device *ndev)
{
struct hns_nic_priv *priv = netdev_priv(ndev);
- if (device_get_mac_address(priv->dev, ndev->dev_addr, ETH_ALEN)) {
+ if (device_get_mac_address(priv->dev, ndev->dev_addr)) {
eth_hw_addr_random(ndev);
dev_warn(priv->dev, "No valid mac, use random mac %pM",
ndev->dev_addr);
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index b84f8b6fe9f4..ad3be55cce68 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -6081,7 +6081,7 @@ static void mvpp2_port_copy_mac_addr(struct net_device *dev, struct mvpp2 *priv,
char hw_mac_addr[ETH_ALEN] = {0};
char fw_mac_addr[ETH_ALEN];
- if (!fwnode_get_mac_address(fwnode, fw_mac_addr, ETH_ALEN)) {
+ if (!fwnode_get_mac_address(fwnode, fw_mac_addr)) {
*mac_from = "firmware node";
eth_hw_addr_set(dev, fw_mac_addr);
return;
diff --git a/drivers/net/ethernet/microchip/enc28j60.c b/drivers/net/ethernet/microchip/enc28j60.c
index fa62311d326a..cca8aa70cfc9 100644
--- a/drivers/net/ethernet/microchip/enc28j60.c
+++ b/drivers/net/ethernet/microchip/enc28j60.c
@@ -1572,7 +1572,7 @@ static int enc28j60_probe(struct spi_device *spi)
goto error_irq;
}
- if (!device_get_mac_address(&spi->dev, macaddr, sizeof(macaddr)))
+ if (!device_get_mac_address(&spi->dev, macaddr))
eth_hw_addr_set(dev, macaddr);
else
eth_hw_addr_random(dev);
diff --git a/drivers/net/ethernet/qualcomm/emac/emac.c b/drivers/net/ethernet/qualcomm/emac/emac.c
index 2e913508fbeb..b1b324f45fe7 100644
--- a/drivers/net/ethernet/qualcomm/emac/emac.c
+++ b/drivers/net/ethernet/qualcomm/emac/emac.c
@@ -549,7 +549,7 @@ static int emac_probe_resources(struct platform_device *pdev,
int ret = 0;
/* get mac address */
- if (!device_get_mac_address(&pdev->dev, maddr, ETH_ALEN))
+ if (!device_get_mac_address(&pdev->dev, maddr))
eth_hw_addr_set(netdev, maddr);
else
eth_hw_addr_random(netdev);
diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index d47308ace075..fa387510c189 100644
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -2375,7 +2375,7 @@ static int smsc911x_probe_config(struct smsc911x_platform_config *config,
phy_interface = PHY_INTERFACE_MODE_NA;
config->phy_interface = phy_interface;
- device_get_mac_address(dev, config->mac, ETH_ALEN);
+ device_get_mac_address(dev, config->mac);
err = device_property_read_u32(dev, "reg-io-width", &width);
if (err == -ENXIO)
diff --git a/drivers/net/ethernet/socionext/netsec.c b/drivers/net/ethernet/socionext/netsec.c
index f8dd7fa5f632..7e3dd07ac94e 100644
--- a/drivers/net/ethernet/socionext/netsec.c
+++ b/drivers/net/ethernet/socionext/netsec.c
@@ -2034,7 +2034,7 @@ static int netsec_probe(struct platform_device *pdev)
goto free_ndev;
}
- ret = device_get_mac_address(&pdev->dev, macbuf, sizeof(macbuf));
+ ret = device_get_mac_address(&pdev->dev, macbuf);
if (!ret)
eth_hw_addr_set(ndev, macbuf);
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 2f9be182fbfb..c21e05549f61 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -3224,7 +3224,7 @@ static int ath10k_core_probe_fw(struct ath10k *ar)
ath10k_debug_print_board_info(ar);
}
- device_get_mac_address(ar->dev, ar->mac_addr, sizeof(ar->mac_addr));
+ device_get_mac_address(ar->dev, ar->mac_addr);
ret = ath10k_core_init_firmware_features(ar);
if (ret) {
diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h
index 70f03f48ff06..32c30d0f7a73 100644
--- a/include/linux/etherdevice.h
+++ b/include/linux/etherdevice.h
@@ -31,8 +31,8 @@ struct fwnode_handle;
int eth_platform_get_mac_address(struct device *dev, u8 *mac_addr);
unsigned char *arch_get_platform_mac_address(void);
int nvmem_get_mac_address(struct device *dev, void *addrbuf);
-int device_get_mac_address(struct device *dev, char *addr, int alen);
-int fwnode_get_mac_address(struct fwnode_handle *fwnode, char *addr, int alen);
+int device_get_mac_address(struct device *dev, char *addr);
+int fwnode_get_mac_address(struct fwnode_handle *fwnode, char *addr);
u32 eth_get_headlen(const struct net_device *dev, const void *data, u32 len);
__be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev);
diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c
index 70692f5b514c..29447a61d3ec 100644
--- a/net/ethernet/eth.c
+++ b/net/ethernet/eth.c
@@ -561,14 +561,11 @@ int nvmem_get_mac_address(struct device *dev, void *addrbuf)
EXPORT_SYMBOL(nvmem_get_mac_address);
static int fwnode_get_mac_addr(struct fwnode_handle *fwnode,
- const char *name, char *addr, int alen)
+ const char *name, char *addr)
{
int ret;
- if (alen != ETH_ALEN)
- return -EINVAL;
-
- ret = fwnode_property_read_u8_array(fwnode, name, addr, alen);
+ ret = fwnode_property_read_u8_array(fwnode, name, addr, ETH_ALEN);
if (ret)
return ret;
@@ -581,7 +578,6 @@ static int fwnode_get_mac_addr(struct fwnode_handle *fwnode,
* fwnode_get_mac_address - Get the MAC from the firmware node
* @fwnode: Pointer to the firmware node
* @addr: Address of buffer to store the MAC in
- * @alen: Length of the buffer pointed to by addr, should be ETH_ALEN
*
* Search the firmware node for the best MAC address to use. 'mac-address' is
* checked first, because that is supposed to contain to "most recent" MAC
@@ -600,11 +596,11 @@ static int fwnode_get_mac_addr(struct fwnode_handle *fwnode,
* In this case, the real MAC is in 'local-mac-address', and 'mac-address'
* exists but is all zeros.
*/
-int fwnode_get_mac_address(struct fwnode_handle *fwnode, char *addr, int alen)
+int fwnode_get_mac_address(struct fwnode_handle *fwnode, char *addr)
{
- if (!fwnode_get_mac_addr(fwnode, "mac-address", addr, alen) ||
- !fwnode_get_mac_addr(fwnode, "local-mac-address", addr, alen) ||
- !fwnode_get_mac_addr(fwnode, "address", addr, alen))
+ if (!fwnode_get_mac_addr(fwnode, "mac-address", addr) ||
+ !fwnode_get_mac_addr(fwnode, "local-mac-address", addr) ||
+ !fwnode_get_mac_addr(fwnode, "address", addr))
return 0;
return -ENOENT;
@@ -615,10 +611,9 @@ EXPORT_SYMBOL(fwnode_get_mac_address);
* device_get_mac_address - Get the MAC for a given device
* @dev: Pointer to the device
* @addr: Address of buffer to store the MAC in
- * @alen: Length of the buffer pointed to by addr, should be ETH_ALEN
*/
-int device_get_mac_address(struct device *dev, char *addr, int alen)
+int device_get_mac_address(struct device *dev, char *addr)
{
- return fwnode_get_mac_address(dev_fwnode(dev), addr, alen);
+ return fwnode_get_mac_address(dev_fwnode(dev), addr);
}
EXPORT_SYMBOL(device_get_mac_address);
--
2.31.1
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