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Bluetooth: Perform L2CAP SDU reassembly without copying data

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Use sk_buff fragment capabilities to link together incoming skbs
instead of allocating a new skb for reassembly and copying.

The new reassembly code works equally well for ERTM and streaming
mode, so there is now one reassembly function instead of two.

Signed-off-by: Mat Martineau <mathewm@codeaurora.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Mat Martineau
2011-07-22 14:54:00 -07:00
committed by Gustavo F. Padovan
parent 5b668eb327
commit 84084a3197
2 changed files with 82 additions and 166 deletions
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3
include/net/bluetooth/l2cap.h
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@@ -354,8 +354,8 @@ struct l2cap_chan {
__u8 retry_count;
__u8 num_acked;
__u16 sdu_len;
__u16 partial_sdu_len;
struct sk_buff *sdu;
struct sk_buff *sdu_last_frag;
__u8 remote_tx_win;
__u8 remote_max_tx;
@@ -448,7 +448,6 @@ enum {
#define L2CAP_CONF_MAX_CONF_RSP 2
enum {
CONN_SAR_SDU,
CONN_SREJ_SENT,
CONN_WAIT_F,
CONN_SREJ_ACT,