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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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drivers/net/tun.c
+2 -2
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@@ -386,8 +386,8 @@ static ssize_t tun_chr_aio_read(struct kiocb *iocb, const struct iovec *iv,
* - we are multicast promiscous.
* - we belong to the multicast group.
*/
memcpy(addr, skb->data,
min_t(size_t, sizeof addr, skb->len));
skb_copy_from_linear_data(skb, addr, min_t(size_t, sizeof addr,
skb->len));
bit_nr = ether_crc(sizeof addr, addr) >> 26;
if ((tun->if_flags & IFF_PROMISC) ||
memcmp(addr, tun->dev_addr, sizeof addr) == 0 ||