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| author |   Alexander Aring <alex.aring@gmail.com> | 2013-02-05 10:23:44 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-02-06 15:56:17 -0500 |
| commit | 25060d8f3f2c21daadb4fc1fb0e37ce2c992e30b (patch) | |
| tree | a8736abdc3e79d9dc1f66ba0906109851a61f69b /net | |
| parent | 6lowpan: use stack buffer instead of heap (diff) | |
| download | linux-dev-25060d8f3f2c21daadb4fc1fb0e37ce2c992e30b.tar.xz linux-dev-25060d8f3f2c21daadb4fc1fb0e37ce2c992e30b.zip | |
wpan: use stack buffer instead of heap
head buffer is only temporary available in mac802154_header_create.
So it's not necessary to put it on the heap.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/mac802154/wpan.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/net/mac802154/wpan.c b/net/mac802154/wpan.c index 98c867bca986..d20c6d3c247d 100644 --- a/net/mac802154/wpan.c +++ b/net/mac802154/wpan.c @@ -137,16 +137,12 @@ static int mac802154_header_create(struct sk_buff *skb, struct ieee802154_addr dev_addr; struct mac802154_sub_if_data *priv = netdev_priv(dev); int pos = 2; - u8 *head; + u8 head[MAC802154_FRAME_HARD_HEADER_LEN]; u16 fc; if (!daddr) return -EINVAL; - head = kzalloc(MAC802154_FRAME_HARD_HEADER_LEN, GFP_KERNEL); - if (head == NULL) - return -ENOMEM; - head[pos++] = mac_cb(skb)->seq; /* DSN/BSN */ fc = mac_cb_type(skb); @@ -210,7 +206,6 @@ static int mac802154_header_create(struct sk_buff *skb, head[1] = fc >> 8; memcpy(skb_push(skb, pos), head, pos); - kfree(head); return pos; } |