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| author | Johannes Berg | 2012-07-26 14:46:32 +0200 |
|---|---|---|
| committer | Johannes Berg | 2012-10-16 20:22:45 +0200 |
| commit | e269d8600a8f6a9f2387b3f283bfb579a5479dc3 (patch) | |
| tree | d07057cda19093807cad649db63a1b6f2f5bbc69 /net/mac80211/main.c | |
| parent | mac80211: reuse channels for channel contexts (diff) | |
| download | kernel-qcow2-linux-e269d8600a8f6a9f2387b3f283bfb579a5479dc3.tar.gz kernel-qcow2-linux-e269d8600a8f6a9f2387b3f283bfb579a5479dc3.tar.xz kernel-qcow2-linux-e269d8600a8f6a9f2387b3f283bfb579a5479dc3.zip | |
mac80211: check channel context methods
Verify that the channel context methods are
all assigned by the driver or not used.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/main.c')
| -rw-r--r-- | net/mac80211/main.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 9be3ef1d2e86..d709a5d42f69 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -549,6 +549,13 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, if (WARN_ON(ops->sta_state && (ops->sta_add || ops->sta_remove))) return NULL; + /* check all or no channel context operations exist */ + i = !!ops->add_chanctx + !!ops->remove_chanctx + + !!ops->change_chanctx + !!ops->assign_vif_chanctx + + !!ops->unassign_vif_chanctx; + if (WARN_ON(i != 0 && i != 5)) + return NULL; + /* Ensure 32-byte alignment of our private data and hw private data. * We use the wiphy priv data for both our ieee80211_local and for * the driver's private data |