[SK_BUFF]: Introduce skb_copy_from_linear_data{_offset}

To clearly state the intent of copying from linear sk_buffs, _offset being a
overly long variant but interesting for the sake of saving some bytes.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 6 insertions, 5 deletions

diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c
index 63732d2305bb..8b5392072632 100644
--- a/drivers/net/ehea/ehea_main.c
+++ b/drivers/net/ehea/ehea_main.c
@@ -1306,7 +1306,7 @@ static void write_swqe2_TSO(struct sk_buff *skb,
 
         if (skb_data_size >= headersize) {
                 /* copy immediate data */
-                memcpy(imm_data, skb->data, headersize);
+                skb_copy_from_linear_data(skb, imm_data, headersize);
                 swqe->immediate_data_length = headersize;
 
                 if (skb_data_size > headersize) {
@@ -1337,7 +1337,7 @@ static void write_swqe2_nonTSO(struct sk_buff *skb,
          */
         if (skb_data_size >= SWQE2_MAX_IMM) {
                 /* copy immediate data */
-                memcpy(imm_data, skb->data, SWQE2_MAX_IMM);
+                skb_copy_from_linear_data(skb, imm_data, SWQE2_MAX_IMM);
 
                 swqe->immediate_data_length = SWQE2_MAX_IMM;
 
@@ -1350,7 +1350,7 @@ static void write_swqe2_nonTSO(struct sk_buff *skb,
                         swqe->descriptors++;
                 }
         } else {
-                memcpy(imm_data, skb->data, skb_data_size);
+                skb_copy_from_linear_data(skb, imm_data, skb_data_size);
                 swqe->immediate_data_length = skb_data_size;
         }
 }
@@ -1772,10 +1772,11 @@ static void ehea_xmit3(struct sk_buff *skb, struct net_device *dev,
         /* copy (immediate) data */
         if (nfrags == 0) {
                 /* data is in a single piece */
-                memcpy(imm_data, skb->data, skb->len);
+                skb_copy_from_linear_data(skb, imm_data, skb->len);
         } else {
                 /* first copy data from the skb->data buffer ... */
-                memcpy(imm_data, skb->data, skb->len - skb->data_len);
+                skb_copy_from_linear_data(skb, imm_data,
+                                          skb->len - skb->data_len);
                 imm_data += skb->len - skb->data_len;
 
                 /* ... then copy data from the fragments */