linux-kernel - [PATCH]hostap:hostap_hw.c Fix variable 'fc' set but not used

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Message-Id: <1280793906-1810-1-git-send-email-justinmattock@gmail.com>
Date:	Mon,  2 Aug 2010 17:05:06 -0700
From:	"Justin P. Mattock" <justinmattock@...il.com>
To:	linux-wireless@...r.kernel.org
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org, j@...fi,
	linville@...driver.com,
	"Justin P. Mattock" <justinmattock@...il.com>
Subject: [PATCH]hostap:hostap_hw.c Fix variable 'fc' set but not used

The below fixes a build wanring from GCC.

  CC [M]  drivers/net/wireless/hostap/hostap_plx.o
In file included from drivers/net/wireless/hostap/hostap_plx.c:264:0:
drivers/net/wireless/hostap/hostap_hw.c: In function 'prism2_tx_80211':
drivers/net/wireless/hostap/hostap_hw.c:1816:18: warning: variable 'fc' set but not used

Removing fc from this just introduces a new warning
  CC [M]  drivers/net/wireless/hostap/hostap_plx.o
In file included from drivers/net/wireless/hostap/hostap_plx.c:264:0:
drivers/net/wireless/hostap/hostap_hw.c: In function 'prism2_tx_80211':
drivers/net/wireless/hostap/hostap_hw.c:1839:3: warning: statement with no effect

So I went and removed the whole thing. Let me know if theres another solution.

Signed-off-by: Justin P. Mattock <justinmattock@...il.com>

---
 drivers/net/wireless/hostap/hostap_hw.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c
index e9d9d62..d734f3e 100644
--- a/drivers/net/wireless/hostap/hostap_hw.c
+++ b/drivers/net/wireless/hostap/hostap_hw.c
@@ -1813,7 +1813,7 @@ static int prism2_tx_80211(struct sk_buff *skb, struct net_device *dev)
 	struct hfa384x_tx_frame txdesc;
 	struct hostap_skb_tx_data *meta;
 	int hdr_len, data_len, idx, res, ret = -1;
-	u16 tx_control, fc;
+	u16 tx_control;
 
 	iface = netdev_priv(dev);
 	local = iface->local;
@@ -1836,7 +1836,6 @@ static int prism2_tx_80211(struct sk_buff *skb, struct net_device *dev)
 	/* skb->data starts with txdesc->frame_control */
 	hdr_len = 24;
 	skb_copy_from_linear_data(skb, &txdesc.frame_control, hdr_len);
- 	fc = le16_to_cpu(txdesc.frame_control);
 	if (ieee80211_is_data(txdesc.frame_control) &&
 	    ieee80211_has_a4(txdesc.frame_control) &&
 	    skb->len >= 30) {
-- 
1.7.1.rc1.21.gf3bd6

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