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authorJohannes Berg <johannes.berg@intel.com>2017-06-16 15:29:20 +0300
committerDavid S. Miller <davem@davemloft.net>2017-06-16 18:48:37 +0300
commit59ae1d127ac0ae404baf414c434ba2651b793f46 (patch)
tree043e71496aa7a7db86bcc8219a3a51f533aac982 /net/decnet
parentb080db585384b9f037e015c0c28d1ad33be41dfc (diff)
downloadlinux-59ae1d127ac0ae404baf414c434ba2651b793f46.tar.xz
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 'net/decnet')
-rw-r--r--net/decnet/dn_nsp_out.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/net/decnet/dn_nsp_out.c b/net/decnet/dn_nsp_out.c
index 849805e7af52..b8a558715395 100644
--- a/net/decnet/dn_nsp_out.c
+++ b/net/decnet/dn_nsp_out.c
@@ -533,7 +533,7 @@ void dn_send_conn_conf(struct sock *sk, gfp_t gfp)
*skb_put(skb,1) = len;
if (len > 0)
- memcpy(skb_put(skb, len), scp->conndata_out.opt_data, len);
+ skb_put_data(skb, scp->conndata_out.opt_data, len);
dn_nsp_send(skb);
@@ -691,22 +691,22 @@ void dn_nsp_send_conninit(struct sock *sk, unsigned char msgflg)
aux = scp->accessdata.acc_userl;
*skb_put(skb, 1) = aux;
if (aux > 0)
- memcpy(skb_put(skb, aux), scp->accessdata.acc_user, aux);
+ skb_put_data(skb, scp->accessdata.acc_user, aux);
aux = scp->accessdata.acc_passl;
*skb_put(skb, 1) = aux;
if (aux > 0)
- memcpy(skb_put(skb, aux), scp->accessdata.acc_pass, aux);
+ skb_put_data(skb, scp->accessdata.acc_pass, aux);
aux = scp->accessdata.acc_accl;
*skb_put(skb, 1) = aux;
if (aux > 0)
- memcpy(skb_put(skb, aux), scp->accessdata.acc_acc, aux);
+ skb_put_data(skb, scp->accessdata.acc_acc, aux);
aux = (__u8)le16_to_cpu(scp->conndata_out.opt_optl);
*skb_put(skb, 1) = aux;
if (aux > 0)
- memcpy(skb_put(skb, aux), scp->conndata_out.opt_data, aux);
+ skb_put_data(skb, scp->conndata_out.opt_data, aux);
scp->persist = dn_nsp_persist(sk);
scp->persist_fxn = dn_nsp_retrans_conninit;