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path: root/drivers/usb/gadget/u_ether.c
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Diffstat (limited to 'drivers/usb/gadget/u_ether.c')
-rw-r--r--drivers/usb/gadget/u_ether.c15
1 files changed, 2 insertions, 13 deletions
diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c
index 1da755a1c855..6bb876d65252 100644
--- a/drivers/usb/gadget/u_ether.c
+++ b/drivers/usb/gadget/u_ether.c
@@ -704,17 +704,6 @@ static char *host_addr;
704module_param(host_addr, charp, S_IRUGO); 704module_param(host_addr, charp, S_IRUGO);
705MODULE_PARM_DESC(host_addr, "Host Ethernet Address"); 705MODULE_PARM_DESC(host_addr, "Host Ethernet Address");
706 706
707
708static u8 __init nibble(unsigned char c)
709{
710 if (isdigit(c))
711 return c - '0';
712 c = toupper(c);
713 if (isxdigit(c))
714 return 10 + c - 'A';
715 return 0;
716}
717
718static int get_ether_addr(const char *str, u8 *dev_addr) 707static int get_ether_addr(const char *str, u8 *dev_addr)
719{ 708{
720 if (str) { 709 if (str) {
@@ -725,8 +714,8 @@ static int get_ether_addr(const char *str, u8 *dev_addr)
725 714
726 if ((*str == '.') || (*str == ':')) 715 if ((*str == '.') || (*str == ':'))
727 str++; 716 str++;
728 num = nibble(*str++) << 4; 717 num = hex_to_bin(*str++) << 4;
729 num |= (nibble(*str++)); 718 num |= hex_to_bin(*str++);
730 dev_addr [i] = num; 719 dev_addr [i] = num;
731 } 720 }
732 if (is_valid_ether_addr(dev_addr)) 721 if (is_valid_ether_addr(dev_addr))