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[SK_BUFF]: Introduce skb_copy_from_linear_data{_offset}

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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>
This commit is contained in:
Arnaldo Carvalho de Melo
2007-03-27 18:55:52 -03:00
committed by David S. Miller
parent 2a123b86e2
commit d626f62b11
133 changed files with 321 additions and 230 deletions
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net/ieee80211/ieee80211_crypt_wep.c
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@@ -152,7 +152,7 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
return -1;
/* Copy the IV into the first 3 bytes of the key */
memcpy(key, skb->data + hdr_len, 3);
skb_copy_from_linear_data_offset(skb, hdr_len, key, 3);
/* Copy rest of the WEP key (the secret part) */
memcpy(key + 3, wep->key, wep->key_len);