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Diffstat (limited to 'drivers/s390/net/qeth_core_main.c')
-rw-r--r--drivers/s390/net/qeth_core_main.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index ca72f3311004..30457fca30c5 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -3898,10 +3898,12 @@ EXPORT_SYMBOL_GPL(qeth_get_elements_for_frags);
int qeth_get_elements_no(struct qeth_card *card,
struct sk_buff *skb, int extra_elems, int data_offset)
{
- int elements = qeth_get_elements_for_range(
- (addr_t)skb->data + data_offset,
- (addr_t)skb->data + skb_headlen(skb)) +
- qeth_get_elements_for_frags(skb);
+ addr_t end = (addr_t)skb->data + skb_headlen(skb);
+ int elements = qeth_get_elements_for_frags(skb);
+ addr_t start = (addr_t)skb->data + data_offset;
+
+ if (start != end)
+ elements += qeth_get_elements_for_range(start, end);
if ((elements + extra_elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
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