[ 006/221] rt2x00: Only specify interface combinations if more then one interface is possible

Greg Kroah-Hartman
2013-01-15T19:04:44Z

From: Helmut Schaa <helmut.schaa@googlemail.com>

commit f5685ba675449b072feab6a5391a9ef9f604bc94 upstream.

Otherwise rt2500* triggers a warning in cfg80211, from net/wireless/core.c:

/* Combinations with just one interface aren't real */
if (WARN_ON(c->max_interfaces < 2))

This was introduced in commit 55d2e9da744ba11eae900b4bfc2da72eace3c1e1:
rt2x00: Replace open coded interface checking with interface combinations.

Reported-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
Tested-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/net/wireless/rt2x00/rt2x00dev.c | 3 +++
1 file changed, 3 insertions(+)

--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -1123,6 +1123,9 @@ static inline void rt2x00lib_set_if_comb
struct ieee80211_iface_limit *if_limit;
struct ieee80211_iface_combination *if_combination;

+ if (rt2x00dev->ops->max_ap_intf < 2)
+ return;
+
/*
* Build up AP interface limits structure.
*/