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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2011-10-18 21:00:24 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-10-19 03:10:46 -0400 |
| commit | 9e903e085262ffbf1fc44a17ac06058aca03524a (patch) | |
| tree | 4acefc97ba38c1733474d25c0b2053b56af97db1 /net/core/user_dma.c | |
| parent | dd767856a36e00b631d65ebc4bb81b19915532d6 (diff) | |
| download | lwn-9e903e085262ffbf1fc44a17ac06058aca03524a.tar.gz lwn-9e903e085262ffbf1fc44a17ac06058aca03524a.zip | |
net: add skb frag size accessors
To ease skb->truesize sanitization, its better to be able to localize
all references to skb frags size.
Define accessors : skb_frag_size() to fetch frag size, and
skb_frag_size_{set|add|sub}() to manipulate it.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/user_dma.c')
| -rw-r--r-- | net/core/user_dma.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/core/user_dma.c b/net/core/user_dma.c index 34e9664cae3b..2d7cf3d52b4c 100644 --- a/net/core/user_dma.c +++ b/net/core/user_dma.c @@ -71,13 +71,13 @@ int dma_skb_copy_datagram_iovec(struct dma_chan *chan, /* Copy paged appendix. Hmm... why does this look so complicated? */ for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { int end; + const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; WARN_ON(start > offset + len); - end = start + skb_shinfo(skb)->frags[i].size; + end = start + skb_frag_size(frag); copy = end - offset; if (copy > 0) { - skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; struct page *page = skb_frag_page(frag); if (copy > len) |