netdev - [PATCH 3/4] mac80211: Removed unused 'struct ieee80211_supported

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Date:   Wed, 23 Nov 2016 20:46:14 -0800
From:   Kirtika Ruchandani <kirtika.ruchandani@...il.com>
To:     Johannes Berg <johannes.berg@...el.com>
Cc:     Arnd Bergmann <arnd@...db.de>, netdev@...r.kernel.org,
        linux-wireless@...r.kernel.org,
        Marek Kwaczynski <marek.kwaczynski@...to.com>,
        David Spinadel <david.spinadel@...el.com>,
        Alexander Bondar <alexander.bondar@...el.com>,
        Michal Kazior <michal.kazior@...to.com>
Subject: [PATCH 3/4] mac80211: Removed unused 'struct
 ieee80211_supported_band*' variable

Commit b1bce14a7954 (mac80211: update opmode when adding new station)
refactored ieee80211_vht_handle_opmode into __ieee80211_vht_handle_opmode
and ieee80211_vht_handle_opmode leaving a set but unused variable
(sband) in the former. Compiling with W=1 gives the following warning,
fix it.

net/mac80211/vht.c: In function ‘__ieee80211_vht_handle_opmode’:
net/mac80211/vht.c:424:35: warning: variable ‘sband’ set but not used [-Wunused-but-set-variable]

Remove 'struct ieee80211_local* local' as well, it was only used to
set sband.

This is a harmless warning, and is only being fixed to reduce the
noise with W=1 in the kernel.

Fixes: b1bce14a7954 ("mac80211: update opmode when adding new station")
Cc: Marek Kwaczynski <marek.kwaczynski@...to.com>
Cc: Johannes Berg <johannes.berg@...el.com>
Signed-off-by: Kirtika Ruchandani <kirtika@...omium.org>
---
 net/mac80211/vht.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c
index ee71576..14920e3 100644
--- a/net/mac80211/vht.c
+++ b/net/mac80211/vht.c
@@ -420,14 +420,10 @@ u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
 				  struct sta_info *sta, u8 opmode,
 				  enum nl80211_band band)
 {
-	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_supported_band *sband;
 	enum ieee80211_sta_rx_bandwidth new_bw;
 	u32 changed = 0;
 	u8 nss;
 
-	sband = local->hw.wiphy->bands[band];
-
 	/* ignore - no support for BF yet */
 	if (opmode & IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF)
 		return 0;
-- 
2.8.0.rc3.226.g39d4020