From 6808f8cf57f10c1491074572eb247e7fc2a60f47 Mon Sep 17 00:00:00 2001
From: YueHaibing <yuehaibing@huawei.com>
Date: Wed, 21 Aug 2019 20:28:02 +0800
Subject: [PATCH] staging: rtl8192e: remove set but not used variable 'data_len'
Git-commit: 6808f8cf57f10c1491074572eb247e7fc2a60f47
Patch-mainline: v5.4-rc1
References: jsc#SLE-13430

Fixes gcc '-Wunused-but-set-variable' warning:

 In function ieee80211_ccmp_encrypt:
drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c:162:6:
 warning: variable data_len set but not used [-Wunused-but-set-variable]

It is not used since commit 5ee5265674ce ("staging:
Rtl8192e: rtllib_crypt_ccmp.c: Use crypto API ccm(aes)")

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20190821122802.44028-1-yuehaibing@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/staging/rtl8192e/rtllib_crypt_ccmp.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c b/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c
index 44ec45d5c87f..0cbf4a1a326b 100644
--- a/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c
+++ b/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c
@@ -153,7 +153,7 @@ static int ccmp_init_iv_and_aad(struct rtllib_hdr_4addr *hdr,
 static int rtllib_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 {
 	struct rtllib_ccmp_data *key = priv;
-	int data_len, i;
+	int i;
 	u8 *pos;
 	struct rtllib_hdr_4addr *hdr;
 	struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb +
@@ -163,7 +163,6 @@ static int rtllib_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	    skb->len < hdr_len)
 		return -1;
 
-	data_len = skb->len - hdr_len;
 	pos = skb_push(skb, CCMP_HDR_LEN);
 	memmove(pos, pos + CCMP_HDR_LEN, hdr_len);
 	pos += hdr_len;
-- 
2.16.4