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- --- a/net/wireless/sysfs.c
- +++ b/net/wireless/sysfs.c
- @@ -24,18 +24,35 @@ static inline struct cfg80211_registered
- return container_of(dev, struct cfg80211_registered_device, wiphy.dev);
- }
-
- -#define SHOW_FMT(name, fmt, member) \
- +#define SHOW_FMT(name, fmt, member, mode) \
- static ssize_t name ## _show(struct device *dev, \
- struct device_attribute *attr, \
- char *buf) \
- { \
- return sprintf(buf, fmt "\n", dev_to_rdev(dev)->member); \
- } \
- -static DEVICE_ATTR_RO(name)
- +static DEVICE_ATTR_##mode(name)
-
- -SHOW_FMT(index, "%d", wiphy_idx);
- -SHOW_FMT(macaddress, "%pM", wiphy.perm_addr);
- -SHOW_FMT(address_mask, "%pM", wiphy.addr_mask);
- +static ssize_t macaddress_store(struct device *dev,
- + struct device_attribute *attr,
- + const char *buf, size_t len)
- +{
- + u8 mac[ETH_ALEN];
- +
- + if (!mac_pton(buf, mac))
- + return -EINVAL;
- +
- + if (buf[3 * ETH_ALEN - 1] && buf[3 * ETH_ALEN - 1] != '\n')
- + return -EINVAL;
- +
- + memcpy(dev_to_rdev(dev)->wiphy.perm_addr, mac, ETH_ALEN);
- +
- + return strnlen(buf, len);
- +}
- +
- +SHOW_FMT(index, "%d", wiphy_idx, RO);
- +SHOW_FMT(macaddress, "%pM", wiphy.perm_addr, RW);
- +SHOW_FMT(address_mask, "%pM", wiphy.addr_mask, RO);
-
- static ssize_t name_show(struct device *dev,
- struct device_attribute *attr,
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