diff options
author | Johannes Berg <johannes.berg@intel.com> | 2017-06-16 14:29:20 +0200 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2017-06-16 11:48:37 -0400 |
commit | 59ae1d127ac0ae404baf414c434ba2651b793f46 (patch) | |
tree | 043e71496aa7a7db86bcc8219a3a51f533aac982 /net/irda | |
parent | b080db585384b9f037e015c0c28d1ad33be41dfc (diff) | |
download | linux-59ae1d127ac0ae404baf414c434ba2651b793f46.tar.bz2 |
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/irda')
-rw-r--r-- | net/irda/ircomm/ircomm_tty.c | 2 | ||||
-rw-r--r-- | net/irda/irlap_frame.c | 6 |
2 files changed, 3 insertions, 5 deletions
diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c index f6061c4bb0a8..ec157c3419b5 100644 --- a/net/irda/ircomm/ircomm_tty.c +++ b/net/irda/ircomm/ircomm_tty.c @@ -690,7 +690,7 @@ static int ircomm_tty_write(struct tty_struct *tty, } /* Copy data */ - memcpy(skb_put(skb,size), buf + len, size); + skb_put_data(skb, buf + len, size); count -= size; len += size; diff --git a/net/irda/irlap_frame.c b/net/irda/irlap_frame.c index b936b1251a66..bf56ac7dba96 100644 --- a/net/irda/irlap_frame.c +++ b/net/irda/irlap_frame.c @@ -392,8 +392,7 @@ void irlap_send_discovery_xid_frame(struct irlap_cb *self, int S, __u8 s, info[0] = discovery->data.charset; len = IRDA_MIN(discovery->name_len, skb_tailroom(tx_skb)); - info = skb_put(tx_skb, len); - memcpy(info, discovery->data.info, len); + info = skb_put_data(tx_skb, discovery->data.info, len); } irlap_queue_xmit(self, tx_skb); } @@ -1216,8 +1215,7 @@ void irlap_send_test_frame(struct irlap_cb *self, __u8 caddr, __u32 daddr, frame->control = TEST_RSP | PF_BIT; /* Copy info */ - info = skb_put(tx_skb, cmd->len); - memcpy(info, cmd->data, cmd->len); + info = skb_put_data(tx_skb, cmd->data, cmd->len); /* Return to sender */ irlap_wait_min_turn_around(self, &self->qos_tx); |