diff options
Diffstat (limited to 'libre-testing/linux-libre-veyron/0005-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch')
| -rw-r--r-- | libre-testing/linux-libre-veyron/0005-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/libre-testing/linux-libre-veyron/0005-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch b/libre-testing/linux-libre-veyron/0005-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch new file mode 100644 index 000000000..18e2a7875 --- /dev/null +++ b/libre-testing/linux-libre-veyron/0005-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch @@ -0,0 +1,95 @@ +From 6e0372c8fec9db69e88a19c3a70a4c3a730fd743 Mon Sep 17 00:00:00 2001 +From: popcornmix <popcornmix@gmail.com> +Date: Tue, 18 Feb 2014 01:43:50 -0300 +Subject: [PATCH 5/9] 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 262e7a3c23cb..c2b3c5b6e1f3 100644 +--- a/drivers/net/usb/smsc95xx.c ++++ b/drivers/net/usb/smsc95xx.c +@@ -60,6 +60,7 @@ + #define SUSPEND_SUSPEND3 (0x08) + #define SUSPEND_ALLMODES (SUSPEND_SUSPEND0 | SUSPEND_SUSPEND1 | \ + SUSPEND_SUSPEND2 | SUSPEND_SUSPEND3) ++#define MAC_ADDR_LEN (6) + + #define CARRIER_CHECK_DELAY (2 * HZ) + +@@ -82,6 +83,10 @@ 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) + { +@@ -913,8 +918,59 @@ 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; ++ + const u8 *mac_addr; + + /* maybe the boot loader passed the MAC address in devicetree */ +-- +2.19.0 + |