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-rw-r--r--drivers/atm/ambassador.c2
-rw-r--r--drivers/atm/idt77252.c2
-rw-r--r--drivers/net/wimax/i2400m/usb-rx.c2
-rw-r--r--drivers/staging/octeon/ethernet-tx.c2
-rw-r--r--include/linux/skbuff.h12
-rw-r--r--net/core/skbuff.c12
6 files changed, 21 insertions, 11 deletions
diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c
index f8f41e0e8a8c..89b30f32ba68 100644
--- a/drivers/atm/ambassador.c
+++ b/drivers/atm/ambassador.c
@@ -802,7 +802,7 @@ static void fill_rx_pool (amb_dev * dev, unsigned char pool,
}
// cast needed as there is no %? for pointer differences
PRINTD (DBG_SKB, "allocated skb at %p, head %p, area %li",
- skb, skb->head, (long) (skb_end_pointer(skb) - skb->head));
+ skb, skb->head, (long) skb_end_offset(skb));
rx.handle = virt_to_bus (skb);
rx.host_address = cpu_to_be32 (virt_to_bus (skb->data));
if (rx_give (dev, &rx, pool))
diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c
index 1c052127548c..8974bd2b961e 100644
--- a/drivers/atm/idt77252.c
+++ b/drivers/atm/idt77252.c
@@ -1258,7 +1258,7 @@ idt77252_rx_raw(struct idt77252_dev *card)
tail = readl(SAR_REG_RAWCT);
pci_dma_sync_single_for_cpu(card->pcidev, IDT77252_PRV_PADDR(queue),
- skb_end_pointer(queue) - queue->head - 16,
+ skb_end_offset(queue) - 16,
PCI_DMA_FROMDEVICE);
while (head != tail) {
diff --git a/drivers/net/wimax/i2400m/usb-rx.c b/drivers/net/wimax/i2400m/usb-rx.c
index e3257681e360..b78ee676e102 100644
--- a/drivers/net/wimax/i2400m/usb-rx.c
+++ b/drivers/net/wimax/i2400m/usb-rx.c
@@ -277,7 +277,7 @@ retry:
d_printf(1, dev, "RX: size changed to %d, received %d, "
"copied %d, capacity %ld\n",
rx_size, read_size, rx_skb->len,
- (long) (skb_end_pointer(new_skb) - new_skb->head));
+ (long) skb_end_offset(new_skb));
goto retry;
}
/* In most cases, it happens due to the hardware scheduling a
diff --git a/drivers/staging/octeon/ethernet-tx.c b/drivers/staging/octeon/ethernet-tx.c
index 56d74dc2fbd5..418ed03d0887 100644
--- a/drivers/staging/octeon/ethernet-tx.c
+++ b/drivers/staging/octeon/ethernet-tx.c
@@ -344,7 +344,7 @@ int cvm_oct_xmit(struct sk_buff *skb, struct net_device *dev)
}
if (unlikely
(skb->truesize !=
- sizeof(*skb) + skb_end_pointer(skb) - skb->head)) {
+ sizeof(*skb) + skb_end_offset(skb))) {
/*
printk("TX buffer truesize has been changed\n");
*/
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 37f539129d89..91ad5e227d1d 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -645,11 +645,21 @@ static inline unsigned char *skb_end_pointer(const struct sk_buff *skb)
{
return skb->head + skb->end;
}
+
+static inline unsigned int skb_end_offset(const struct sk_buff *skb)
+{
+ return skb->end;
+}
#else
static inline unsigned char *skb_end_pointer(const struct sk_buff *skb)
{
return skb->end;
}
+
+static inline unsigned int skb_end_offset(const struct sk_buff *skb)
+{
+ return skb->end - skb->head;
+}
#endif
/* Internal */
@@ -2558,7 +2568,7 @@ static inline bool skb_is_recycleable(const struct sk_buff *skb, int skb_size)
return false;
skb_size = SKB_DATA_ALIGN(skb_size + NET_SKB_PAD);
- if (skb_end_pointer(skb) - skb->head < skb_size)
+ if (skb_end_offset(skb) < skb_size)
return false;
if (skb_shared(skb) || skb_cloned(skb))
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 17e4b1e1bf2c..2c35da818ef9 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -829,7 +829,7 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
struct sk_buff *skb_copy(const struct sk_buff *skb, gfp_t gfp_mask)
{
int headerlen = skb_headroom(skb);
- unsigned int size = (skb_end_pointer(skb) - skb->head) + skb->data_len;
+ unsigned int size = skb_end_offset(skb) + skb->data_len;
struct sk_buff *n = alloc_skb(size, gfp_mask);
if (!n)
@@ -930,7 +930,7 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail,
{
int i;
u8 *data;
- int size = nhead + (skb_end_pointer(skb) - skb->head) + ntail;
+ int size = nhead + skb_end_offset(skb) + ntail;
long off;
BUG_ON(nhead < 0);
@@ -2727,14 +2727,13 @@ struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features)
if (unlikely(!nskb))
goto err;
- hsize = skb_end_pointer(nskb) - nskb->head;
+ hsize = skb_end_offset(nskb);
if (skb_cow_head(nskb, doffset + headroom)) {
kfree_skb(nskb);
goto err;
}
- nskb->truesize += skb_end_pointer(nskb) - nskb->head -
- hsize;
+ nskb->truesize += skb_end_offset(nskb) - hsize;
skb_release_head_state(nskb);
__skb_push(nskb, doffset);
} else {
@@ -2883,7 +2882,8 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
skb_frag_size_sub(frag, offset);
/* all fragments truesize : remove (head size + sk_buff) */
- delta_truesize = skb->truesize - SKB_TRUESIZE(skb_end_pointer(skb) - skb->head);
+ delta_truesize = skb->truesize -
+ SKB_TRUESIZE(skb_end_offset(skb));
skb->truesize -= skb->data_len;
skb->len -= skb->data_len;