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>
diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
index 7cb7f29..47b2ee4 100644
--- a/drivers/infiniband/hw/nes/nes_nic.c
+++ b/drivers/infiniband/hw/nes/nes_nic.c
@@ -444,10 +444,10 @@
skb_frag_t *frag =
&skb_shinfo(skb)->frags[skb_fragment_index];
bus_address = skb_frag_dma_map(&nesdev->pcidev->dev,
- frag, 0, frag->size,
+ frag, 0, skb_frag_size(frag),
DMA_TO_DEVICE);
wqe_fragment_length[wqe_fragment_index] =
- cpu_to_le16(skb_shinfo(skb)->frags[skb_fragment_index].size);
+ cpu_to_le16(skb_frag_size(&skb_shinfo(skb)->frags[skb_fragment_index]));
set_wqe_64bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_FRAG0_LOW_IDX+(2*wqe_fragment_index),
bus_address);
wqe_fragment_index++;
@@ -565,7 +565,7 @@
&skb_shinfo(skb)->frags[tso_frag_count];
tso_bus_address[tso_frag_count] =
skb_frag_dma_map(&nesdev->pcidev->dev,
- frag, 0, frag->size,
+ frag, 0, skb_frag_size(frag),
DMA_TO_DEVICE);
}
@@ -637,11 +637,11 @@
}
while (wqe_fragment_index < 5) {
wqe_fragment_length[wqe_fragment_index] =
- cpu_to_le16(skb_shinfo(skb)->frags[tso_frag_index].size);
+ cpu_to_le16(skb_frag_size(&skb_shinfo(skb)->frags[tso_frag_index]));
set_wqe_64bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_FRAG0_LOW_IDX+(2*wqe_fragment_index),
(u64)tso_bus_address[tso_frag_index]);
wqe_fragment_index++;
- tso_wqe_length += skb_shinfo(skb)->frags[tso_frag_index++].size;
+ tso_wqe_length += skb_frag_size(&skb_shinfo(skb)->frags[tso_frag_index++]);
if (wqe_fragment_index < 5)
wqe_fragment_length[wqe_fragment_index] = 0;
if (tso_frag_index == tso_frag_count)