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authorEric Dumazet <eric.dumazet@gmail.com>2011-10-18 21:00:24 +0000
committerDavid S. Miller <davem@davemloft.net>2011-10-19 03:10:46 -0400
commit9e903e085262ffbf1fc44a17ac06058aca03524a (patch)
tree4acefc97ba38c1733474d25c0b2053b56af97db1 /drivers/scsi
parentdd767856a36e00b631d65ebc4bb81b19915532d6 (diff)
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 'drivers/scsi')
-rw-r--r--drivers/scsi/cxgbi/libcxgbi.c10
-rw-r--r--drivers/scsi/fcoe/fcoe_transport.c2
2 files changed, 6 insertions, 6 deletions
diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c
index 77ac217ad5c..be69da38cca 100644
--- a/drivers/scsi/cxgbi/libcxgbi.c
+++ b/drivers/scsi/cxgbi/libcxgbi.c
@@ -1814,8 +1814,8 @@ static int sgl_read_to_frags(struct scatterlist *sg, unsigned int sgoffset,
copy = min(datalen, sglen);
if (i && page == frags[i - 1].page &&
sgoffset + sg->offset ==
- frags[i - 1].page_offset + frags[i - 1].size) {
- frags[i - 1].size += copy;
+ frags[i - 1].page_offset + skb_frag_size(&frags[i - 1])) {
+ skb_frag_size_add(&frags[i - 1], copy);
} else {
if (i >= frag_max) {
pr_warn("too many pages %u, dlen %u.\n",
@@ -1825,7 +1825,7 @@ static int sgl_read_to_frags(struct scatterlist *sg, unsigned int sgoffset,
frags[i].page = page;
frags[i].page_offset = sg->offset + sgoffset;
- frags[i].size = copy;
+ skb_frag_size_set(&frags[i], copy);
i++;
}
datalen -= copy;
@@ -1951,8 +1951,8 @@ int cxgbi_conn_init_pdu(struct iscsi_task *task, unsigned int offset,
char *src = kmap_atomic(frag->page,
KM_SOFTIRQ0);
- memcpy(dst, src+frag->page_offset, frag->size);
- dst += frag->size;
+ memcpy(dst, src+frag->page_offset, skb_frag_size(frag));
+ dst += skb_frag_size(frag);
kunmap_atomic(src, KM_SOFTIRQ0);
}
if (padlen) {
diff --git a/drivers/scsi/fcoe/fcoe_transport.c b/drivers/scsi/fcoe/fcoe_transport.c
index f6613f9f1bd..dac8e39a518 100644
--- a/drivers/scsi/fcoe/fcoe_transport.c
+++ b/drivers/scsi/fcoe/fcoe_transport.c
@@ -105,7 +105,7 @@ u32 fcoe_fc_crc(struct fc_frame *fp)
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
frag = &skb_shinfo(skb)->frags[i];
off = frag->page_offset;
- len = frag->size;
+ len = skb_frag_size(frag);
while (len > 0) {
clen = min(len, PAGE_SIZE - (off & ~PAGE_MASK));
data = kmap_atomic(