linux-kernel - [PATCH] batman-adv: clarify CFG80211 dependency

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Message-Id: <1456926882-2941809-1-git-send-email-arnd@arndb.de>
Date:	Wed,  2 Mar 2016 14:54:35 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Antonio Quartulli <a@...table.cc>
Cc:	linux-arm-kernel@...ts.infradead.org,
	Arnd Bergmann <arnd@...db.de>,
	Marek Lindner <mareklindner@...mailbox.ch>,
	Simon Wunderlich <sw@...onwunderlich.de>,
	"David S. Miller" <davem@...emloft.net>,
	b.a.t.m.a.n@...ts.open-mesh.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] batman-adv: clarify CFG80211 dependency

The driver calls cfg80211_get_station, which may be part of a
module, so we must not enable BATMAN_ADV_BATMAN_V if
BATMAN_ADV=y and CFG80211=m:

net/built-in.o: In function `batadv_v_elp_get_throughput':
(text+0x5c62c): undefined reference to `cfg80211_get_station'

This clarifies the dependency to cover all combinations.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Fixes: c833484e5f38 ("batman-adv: ELP - compute the metric based on the estimated throughput")
---
 net/batman-adv/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/batman-adv/Kconfig b/net/batman-adv/Kconfig
index e651dc927bfd..f66930ee3c0b 100644
--- a/net/batman-adv/Kconfig
+++ b/net/batman-adv/Kconfig
@@ -17,7 +17,7 @@ config BATMAN_ADV
 
 config BATMAN_ADV_BATMAN_V
 	bool "B.A.T.M.A.N. V protocol (experimental)"
-	depends on BATMAN_ADV && CFG80211
+	depends on BATMAN_ADV && CFG80211=y || (CFG80211=m && BATMAN_ADV=m)
 	default n
 	help
 	  This option enables the B.A.T.M.A.N. V protocol, the successor
-- 
2.7.0