diff options
Diffstat (limited to 'drivers/net/wireless/zd1211rw/zd_mac.c')
| -rw-r--r-- | drivers/net/wireless/zd1211rw/zd_mac.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c index 709fe5e06f73..2d555cc30508 100644 --- a/drivers/net/wireless/zd1211rw/zd_mac.c +++ b/drivers/net/wireless/zd1211rw/zd_mac.c @@ -987,12 +987,13 @@ static void zd_op_configure_filter(struct ieee80211_hw *hw, changed_flags &= SUPPORTED_FIF_FLAGS; *new_flags &= SUPPORTED_FIF_FLAGS; - /* changed_flags is always populated but this driver - * doesn't support all FIF flags so its possible we don't - * need to do anything */ - if (!changed_flags) - return; - + /* + * If multicast parameter (as returned by zd_op_prepare_multicast) + * has changed, no bit in changed_flags is set. To handle this + * situation, we do not return if changed_flags is 0. If we do so, + * we will have some issue with IPv6 which uses multicast for link + * layer address resolution. + */ if (*new_flags & (FIF_PROMISC_IN_BSS | FIF_ALLMULTI)) zd_mc_add_all(&hash); |