diff options
| author | Johannes Berg <johannes@sipsolutions.net> | 2007-07-10 19:32:10 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2007-07-12 16:07:26 -0400 |
| commit | 4480f15ca62a595248d6d8e2b3e75052113cde59 (patch) | |
| tree | fec2e3536bbe508a6a5de4a1e14d0c0ac904836f /net/mac80211/ieee80211.c | |
| parent | 5558235c6bade6662e6f257a35f2dfdc8a742147 (diff) | |
| download | lwn-4480f15ca62a595248d6d8e2b3e75052113cde59.tar.gz lwn-4480f15ca62a595248d6d8e2b3e75052113cde59.zip | |
[PATCH] mac80211: clarify some mac80211 things
The semantics of not having an add_interface callback are not well
defined, this callback is required because otherwise you cannot obtain
the requested MAC address of the device. Change the documentation to
reflect this, add a note about having no MAC address at all, add a
warning that mac_addr in struct ieee80211_if_init_conf can be NULL and
finally verify that a few callbacks are assigned by way of BUG_ON()
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Jiri Benc <jbenc@suse.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/ieee80211.c')
| -rw-r--r-- | net/mac80211/ieee80211.c | 29 |
1 files changed, 12 insertions, 17 deletions
diff --git a/net/mac80211/ieee80211.c b/net/mac80211/ieee80211.c index 773a103ee3a1..fe32a2d16053 100644 --- a/net/mac80211/ieee80211.c +++ b/net/mac80211/ieee80211.c @@ -2605,8 +2605,7 @@ static void ieee80211_start_hard_monitor(struct ieee80211_local *local) struct ieee80211_if_init_conf conf; if (local->open_count && local->open_count == local->monitors && - !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER) && - local->ops->add_interface) { + !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER)) { conf.if_id = -1; conf.type = IEEE80211_IF_TYPE_MNTR; conf.mac_addr = NULL; @@ -2649,21 +2648,14 @@ static int ieee80211_open(struct net_device *dev) } ieee80211_start_soft_monitor(local); - if (local->ops->add_interface) { - conf.if_id = dev->ifindex; - conf.type = sdata->type; - conf.mac_addr = dev->dev_addr; - res = local->ops->add_interface(local_to_hw(local), &conf); - if (res) { - if (sdata->type == IEEE80211_IF_TYPE_MNTR) - ieee80211_start_hard_monitor(local); - return res; - } - } else { - if (sdata->type != IEEE80211_IF_TYPE_STA) - return -EOPNOTSUPP; - if (local->open_count > 0) - return -ENOBUFS; + conf.if_id = dev->ifindex; + conf.type = sdata->type; + conf.mac_addr = dev->dev_addr; + res = local->ops->add_interface(local_to_hw(local), &conf); + if (res) { + if (sdata->type == IEEE80211_IF_TYPE_MNTR) + ieee80211_start_hard_monitor(local); + return res; } if (local->open_count == 0) { @@ -4896,6 +4888,9 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, ((sizeof(struct ieee80211_local) + NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST); + BUG_ON(!ops->tx); + BUG_ON(!ops->config); + BUG_ON(!ops->add_interface); local->ops = ops; /* for now, mdev needs sub_if_data :/ */ |