diff options
Diffstat (limited to 'kernels/linux-libre-knock/0005-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch')
| -rw-r--r-- | kernels/linux-libre-knock/0005-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/kernels/linux-libre-knock/0005-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch b/kernels/linux-libre-knock/0005-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch new file mode 100644 index 000000000..961e49c51 --- /dev/null +++ b/kernels/linux-libre-knock/0005-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch @@ -0,0 +1,94 @@ +From 0cca0b90853cd9e03a5c6d2018d1fb5c790dce59 Mon Sep 17 00:00:00 2001 +From: popcornmix <popcornmix@gmail.com> +Date: Tue, 18 Feb 2014 01:43:50 -0300 +Subject: [PATCH 5/8] net/smsc95xx: Allow mac address to be set as a parameter + +--- + drivers/net/usb/smsc95xx.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++ + 1 file changed, 56 insertions(+) + +diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c +index 26423ad..e29a323 100644 +--- a/drivers/net/usb/smsc95xx.c ++++ b/drivers/net/usb/smsc95xx.c +@@ -59,6 +59,7 @@ + #define SUSPEND_SUSPEND3 (0x08) + #define SUSPEND_ALLMODES (SUSPEND_SUSPEND0 | SUSPEND_SUSPEND1 | \ + SUSPEND_SUSPEND2 | SUSPEND_SUSPEND3) ++#define MAC_ADDR_LEN (6) + + struct smsc95xx_priv { + u32 mac_cr; +@@ -74,6 +75,10 @@ static bool turbo_mode = true; + module_param(turbo_mode, bool, 0644); + MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction"); + ++static char *macaddr = ":"; ++module_param(macaddr, charp, 0); ++MODULE_PARM_DESC(macaddr, "MAC address"); ++ + static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index, + u32 *data, int in_pm) + { +@@ -763,8 +768,59 @@ static int smsc95xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) + return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL); + } + ++/* Check the macaddr module parameter for a MAC address */ ++static int smsc95xx_is_macaddr_param(struct usbnet *dev, u8 *dev_mac) ++{ ++ int i, j, got_num, num; ++ u8 mtbl[MAC_ADDR_LEN]; ++ ++ if (macaddr[0] == ':') ++ return 0; ++ ++ i = 0; ++ j = 0; ++ num = 0; ++ got_num = 0; ++ while (j < MAC_ADDR_LEN) { ++ if (macaddr[i] && macaddr[i] != ':') { ++ got_num++; ++ if ('0' <= macaddr[i] && macaddr[i] <= '9') ++ num = num * 16 + macaddr[i] - '0'; ++ else if ('A' <= macaddr[i] && macaddr[i] <= 'F') ++ num = num * 16 + 10 + macaddr[i] - 'A'; ++ else if ('a' <= macaddr[i] && macaddr[i] <= 'f') ++ num = num * 16 + 10 + macaddr[i] - 'a'; ++ else ++ break; ++ i++; ++ } else if (got_num == 2) { ++ mtbl[j++] = (u8) num; ++ num = 0; ++ got_num = 0; ++ i++; ++ } else { ++ break; ++ } ++ } ++ ++ if (j == MAC_ADDR_LEN) { ++ netif_dbg(dev, ifup, dev->net, "Overriding MAC address with: " ++ "%02x:%02x:%02x:%02x:%02x:%02x\n", mtbl[0], mtbl[1], mtbl[2], ++ mtbl[3], mtbl[4], mtbl[5]); ++ for (i = 0; i < MAC_ADDR_LEN; i++) ++ dev_mac[i] = mtbl[i]; ++ return 1; ++ } else { ++ return 0; ++ } ++} ++ + static void smsc95xx_init_mac_address(struct usbnet *dev) + { ++ /* Check module parameters */ ++ if (smsc95xx_is_macaddr_param(dev, dev->net->dev_addr)) ++ return; ++ + /* try reading mac address from EEPROM */ + if (smsc95xx_read_eeprom(dev, EEPROM_MAC_OFFSET, ETH_ALEN, + dev->net->dev_addr) == 0) { +-- +2.4.4 |