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authorJohannes Berg <johannes.berg@intel.com>2017-06-16 14:29:20 +0200
committerDavid S. Miller <davem@davemloft.net>2017-06-16 11:48:37 -0400
commit59ae1d127ac0ae404baf414c434ba2651b793f46 (patch)
tree043e71496aa7a7db86bcc8219a3a51f533aac982 /drivers/net/ethernet/3com
parentb080db585384b9f037e015c0c28d1ad33be41dfc (diff)
networking: introduce and use skb_put_data()
A common pattern with skb_put() is to just want to memcpy() some data into the new space, introduce skb_put_data() for this. An spatch similar to the one for skb_put_zero() converts many of the places using it: @@ identifier p, p2; expression len, skb, data; type t, t2; @@ ( -p = skb_put(skb, len); +p = skb_put_data(skb, data, len); | -p = (t)skb_put(skb, len); +p = skb_put_data(skb, data, len); ) ( p2 = (t2)p; -memcpy(p2, data, len); | -memcpy(p, data, len); ) @@ type t, t2; identifier p, p2; expression skb, data; @@ t *p; ... ( -p = skb_put(skb, sizeof(t)); +p = skb_put_data(skb, data, sizeof(t)); | -p = (t *)skb_put(skb, sizeof(t)); +p = skb_put_data(skb, data, sizeof(t)); ) ( p2 = (t2)p; -memcpy(p2, data, sizeof(*p)); | -memcpy(p, data, sizeof(*p)); ) @@ expression skb, len, data; @@ -memcpy(skb_put(skb, len), data, len); +skb_put_data(skb, data, len); (again, manually post-processed to retain some comments) Reviewed-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/3com')
-rw-r--r--drivers/net/ethernet/3com/3c515.c6
-rw-r--r--drivers/net/ethernet/3com/3c59x.c5
2 files changed, 5 insertions, 6 deletions
diff --git a/drivers/net/ethernet/3com/3c515.c b/drivers/net/ethernet/3com/3c515.c
index e7b1fa56b290..c5987f518cb2 100644
--- a/drivers/net/ethernet/3com/3c515.c
+++ b/drivers/net/ethernet/3com/3c515.c
@@ -1370,9 +1370,9 @@ static int boomerang_rx(struct net_device *dev)
(skb = netdev_alloc_skb(dev, pkt_len + 4)) != NULL) {
skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
/* 'skb_put()' points to the start of sk_buff data area. */
- memcpy(skb_put(skb, pkt_len),
- isa_bus_to_virt(vp->rx_ring[entry].
- addr), pkt_len);
+ skb_put_data(skb,
+ isa_bus_to_virt(vp->rx_ring[entry].addr),
+ pkt_len);
rx_copy++;
} else {
void *temp;
diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c
index 14cff6017756..3b516ebeeddb 100644
--- a/drivers/net/ethernet/3com/3c59x.c
+++ b/drivers/net/ethernet/3com/3c59x.c
@@ -2628,9 +2628,8 @@ boomerang_rx(struct net_device *dev)
skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
pci_dma_sync_single_for_cpu(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
/* 'skb_put()' points to the start of sk_buff data area. */
- memcpy(skb_put(skb, pkt_len),
- vp->rx_skbuff[entry]->data,
- pkt_len);
+ skb_put_data(skb, vp->rx_skbuff[entry]->data,
+ pkt_len);
pci_dma_sync_single_for_device(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
vp->rx_copy++;
} else {