43 lines
1.3 KiB
Diff
43 lines
1.3 KiB
Diff
--- 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,
|