[PATCH] mac80211_hwsim: fix secondary MAC address assignment
From: Johannes Berg <johannes@sipsolutions.net>
Date: 2018-03-21 08:09:51
Subsystem:
networking drivers (wireless), the rest · Maintainers:
Johannes Berg, Linus Torvalds
From: Johannes Berg <redacted>
OR'ing in 0x40 before a memcpy() to overwrite the value doesn't
do much good - flip the order of operations are reported and
tested by Jouni.
Fixes: cb1a5bae5684 ("mac80211_hwsim: add permanent mac address option for new radios")
Reported-by: Jouni Malinen <redacted>
Signed-off-by: Johannes Berg <redacted>
---
drivers/net/wireless/mac80211_hwsim.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 7b6c3640a94f..930ddef91093 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c@@ -2584,8 +2584,8 @@ static int mac80211_hwsim_new_radio(struct genl_info *info, addr[4] = idx; memcpy(data->addresses[0].addr, addr, ETH_ALEN); /* Why need here second address ? */ - data->addresses[1].addr[0] |= 0x40; memcpy(data->addresses[1].addr, addr, ETH_ALEN); + data->addresses[1].addr[0] |= 0x40; hw->wiphy->n_addresses = 2; hw->wiphy->addresses = data->addresses; /* possible address clash is checked at hash table insertion */
--
2.15.1