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staging: rtl8192e: remove set but not used variable 'data_len' 

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 5ee5265674 ("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>
This commit is contained in:
YueHaibing 2019-08-21 20:28:02 +08:00 committed by Greg Kroah-Hartman
parent 4a67342ea9
commit 6808f8cf57
1 changed files with 1 additions and 2 deletions
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3
drivers/staging/rtl8192e/rtllib_crypt_ccmp.c
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@ -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;