Using is_broadcast_ether_addr() and is_zero_ether_addr() instead of
testing each byte of the mac[] array for 0xff and 0x00 shortens the
code and improves readability.
If np == NULL, of_get_property() returns NULL, hence the "np" check
is not needed.
Instead of a fixed default mac address use a random one to reduce the
likelihood of mac address collision.
Thanks to Joe Perches and Dan Carpenter.
Signed-off-by: Michael Straube <michael.straube@xxxxxxxxx>
---
.../staging/rtl8723bs/core/rtw_ieee80211.c | 19 ++++---------------
1 file changed, 4 insertions(+), 15 deletions(-)
diff --git a/drivers/staging/rtl8723bs/core/rtw_ieee80211.c b/drivers/staging/rtl8723bs/core/rtw_ieee80211.c
index 0822e440204e..584695df0a48 100644
--- a/drivers/staging/rtl8723bs/core/rtw_ieee80211.c
+++ b/drivers/staging/rtl8723bs/core/rtw_ieee80211.c
@@ -1177,24 +1177,13 @@ void rtw_macaddr_cfg(struct device *dev, u8 *mac_addr)
memcpy(mac, mac_addr, ETH_ALEN);
}
- if (((mac[0] == 0xff) && (mac[1] == 0xff) && (mac[2] == 0xff) &&
- (mac[3] == 0xff) && (mac[4] == 0xff) && (mac[5] == 0xff)) ||
- ((mac[0] == 0x00) && (mac[1] == 0x00) && (mac[2] == 0x00) &&
- (mac[3] == 0x00) && (mac[4] == 0x00) && (mac[5] == 0x00))) {
- if (np &&
- (addr = of_get_property(np, "local-mac-address", &len)) &&
+ if (is_broadcast_ether_addr(mac) || is_zero_ether_addr(mac)) {
+ if ((addr = of_get_property(np, "local-mac-address", &len)) &&
len == ETH_ALEN) {
memcpy(mac_addr, addr, ETH_ALEN);
} else {
- mac[0] = 0x00;
- mac[1] = 0xe0;
- mac[2] = 0x4c;
- mac[3] = 0x87;
- mac[4] = 0x00;
- mac[5] = 0x00;
- /* use default mac addresss */
- memcpy(mac_addr, mac, ETH_ALEN);
- DBG_871X("MAC Address from efuse error, assign default one !!!\n");
+ eth_random_addr(mac_addr);
+ DBG_871X("MAC Address from efuse error, assign random one !!!\n");
}
}
--
2.18.0
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