From: John W. Linville <linville@tuxdriver.com>
Date: Tue, 20 Jul 2010 16:09:11 +0000 (-0400)
Subject: wireless: correct sparse warning in lib80211_crypt_tkip.c
X-Git-Tag: firefly_0821_release~9833^2~1306^2~107^2~16
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=3f6ff6bacdec217c98a60910c4804d11ce859820;p=firefly-linux-kernel-4.4.55.git

wireless: correct sparse warning in lib80211_crypt_tkip.c

  CHECK   net/wireless/lib80211_crypt_tkip.c
net/wireless/lib80211_crypt_tkip.c:581:27: warning: cast to restricted __le16

Caused by dereferencing a "u8 *" and passing it to le16_to_cpu...

Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/net/wireless/lib80211_crypt_tkip.c b/net/wireless/lib80211_crypt_tkip.c
index 8cbdb32ff316..a7f995613f1f 100644
--- a/net/wireless/lib80211_crypt_tkip.c
+++ b/net/wireless/lib80211_crypt_tkip.c
@@ -578,7 +578,7 @@ static void michael_mic_hdr(struct sk_buff *skb, u8 * hdr)
 	}
 
 	if (ieee80211_is_data_qos(hdr11->frame_control)) {
-		hdr[12] = le16_to_cpu(*ieee80211_get_qos_ctl(hdr11))
+		hdr[12] = le16_to_cpu(*((__le16 *)ieee80211_get_qos_ctl(hdr11)))
 			& IEEE80211_QOS_CTL_TID_MASK;
 	} else
 		hdr[12] = 0;		/* priority */