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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/wireless/mediatek
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/wireless/mediatek')
-rw-r--r--drivers/net/wireless/mediatek/mt7601u/dma.c4
-rw-r--r--drivers/net/wireless/mediatek/mt7601u/mcu.c2
2 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/wireless/mediatek/mt7601u/dma.c b/drivers/net/wireless/mediatek/mt7601u/dma.c
index a8bc064bc14f..660267b359e4 100644
--- a/drivers/net/wireless/mediatek/mt7601u/dma.c
+++ b/drivers/net/wireless/mediatek/mt7601u/dma.c
@@ -52,7 +52,7 @@ mt7601u_rx_skb_from_seg(struct mt7601u_dev *dev, struct mt7601u_rxwi *rxwi,
goto bad_frame;
if (rxwi->rxinfo & cpu_to_le32(MT_RXINFO_L2PAD)) {
- memcpy(skb_put(skb, hdr_len), data, hdr_len);
+ skb_put_data(skb, data, hdr_len);
data += hdr_len + 2;
true_len -= hdr_len;
@@ -63,7 +63,7 @@ mt7601u_rx_skb_from_seg(struct mt7601u_dev *dev, struct mt7601u_rxwi *rxwi,
copy = (true_len <= skb_tailroom(skb)) ? true_len : hdr_len + 8;
frag = true_len - copy;
- memcpy(skb_put(skb, copy), data, copy);
+ skb_put_data(skb, data, copy);
data += copy;
if (frag) {
diff --git a/drivers/net/wireless/mediatek/mt7601u/mcu.c b/drivers/net/wireless/mediatek/mt7601u/mcu.c
index a9f5f398b2f8..65a8004418ea 100644
--- a/drivers/net/wireless/mediatek/mt7601u/mcu.c
+++ b/drivers/net/wireless/mediatek/mt7601u/mcu.c
@@ -68,7 +68,7 @@ mt7601u_mcu_msg_alloc(struct mt7601u_dev *dev, const void *data, int len)
skb = alloc_skb(len + MT_DMA_HDR_LEN + 4, GFP_KERNEL);
if (skb) {
skb_reserve(skb, MT_DMA_HDR_LEN);
- memcpy(skb_put(skb, len), data, len);
+ skb_put_data(skb, data, len);
}
return skb;