mac80211: Remove unused assignment statements

The assignment of these three local variables in the file will not
be used in the corresponding functions, so they should be deleted.

The clang_analyzer complains as follows:

net/mac80211/wpa.c:689:2 warning:
net/mac80211/wpa.c:883:2 warning:
net/mac80211/wpa.c:452:2 warning:

Value stored to 'hdr' is never read

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: luo penghao <luo.penghao@zte.com.cn>
Link: https://lore.kernel.org/r/20211104061411.1744-1-luo.penghao@zte.com.cn
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 4eed23e27610439b316e8d846bd22af83399b8bf..7ed0d268aff2fd8da2b44bf7af733e6e798e5761 100644 (file)
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -449,7 +449,6 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb,
            (info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE))
                return 0;
 
-       hdr = (struct ieee80211_hdr *) pos;
        pos += hdrlen;
 
        pn64 = atomic64_inc_return(&key->conf.tx_pn);
@@ -686,7 +685,6 @@ static int gcmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
            (info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE))
                return 0;
 
-       hdr = (struct ieee80211_hdr *)pos;
        pos += hdrlen;
 
        pn64 = atomic64_inc_return(&key->conf.tx_pn);
@@ -881,8 +879,6 @@ ieee80211_crypto_cs_decrypt(struct ieee80211_rx_data *rx)
        if (skb_linearize(rx->skb))
                return RX_DROP_UNUSABLE;
 
-       hdr = (struct ieee80211_hdr *)rx->skb->data;
-
        rx_pn = key->u.gen.rx_pn[qos_tid];
        skb_pn = rx->skb->data + hdrlen + cs->pn_off;