[SK_BUFF]: Introduce skb_copy_from_linear_data{_offset}

To clearly state the intent of copying from linear sk_buffs, _offset being a
overly long variant but interesting for the sake of saving some bytes.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/wireless/hostap/hostap_ap.c b/drivers/net/wireless/hostap/hostap_ap.c
index 797d950d5d61..4ca8a27b8c55 100644
--- a/drivers/net/wireless/hostap/hostap_ap.c
+++ b/drivers/net/wireless/hostap/hostap_ap.c
@@ -1277,8 +1277,8 @@ static char * ap_auth_make_challenge(struct ap_data *ap)
                 return NULL;
         }
 
-        memcpy(tmpbuf, skb->data + ap->crypt->extra_mpdu_prefix_len,
-               WLAN_AUTH_CHALLENGE_LEN);
+        skb_copy_from_linear_data_offset(skb, ap->crypt->extra_mpdu_prefix_len,
+                                         tmpbuf, WLAN_AUTH_CHALLENGE_LEN);
         dev_kfree_skb(skb);
 
         return tmpbuf;