diff options
Diffstat (limited to 'include/linux/ethtool.h')
| -rw-r--r-- | include/linux/ethtool.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index 013d25858642..7edb5f5e7134 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -1330,6 +1330,17 @@ extern __printf(2, 3) void ethtool_sprintf(u8 **data, const char *fmt, ...); */ extern void ethtool_puts(u8 **data, const char *str); +/** + * ethtool_cpy - Write possibly-not-NUL-terminated string to ethtool string data + * @data: Pointer to a pointer to the start of string to write into + * @str: NUL-byte padded char array of size ETH_GSTRING_LEN to copy from + */ +#define ethtool_cpy(data, str) do { \ + BUILD_BUG_ON(sizeof(str) != ETH_GSTRING_LEN); \ + memcpy(*(data), str, ETH_GSTRING_LEN); \ + *(data) += ETH_GSTRING_LEN; \ +} while (0) + /* Link mode to forced speed capabilities maps */ struct ethtool_forced_speed_map { u32 speed; |