Phonet: zero-copy GPRS TX

Send aligned pipe payload if requested to do so. Then, the socket buffer
needs not be fragmented anymore.

Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/net/phonet/pep.h b/include/net/phonet/pep.h
index c37162547a93..35672b1cf44a 100644
--- a/include/net/phonet/pep.h
+++ b/include/net/phonet/pep.h
@@ -44,6 +44,7 @@ struct pep_sock {
         u8                      rx_fc;  /* RX flow control */
         u8                      tx_fc;  /* TX flow control */
         u8                      init_enable;    /* auto-enable at creation */
+        u8                      aligned;
 };
 
 static inline struct pep_sock *pep_sk(struct sock *sk)
@@ -139,6 +140,7 @@ enum {
         PN_PIPE_SB_NEGOTIATED_FC,
         PN_PIPE_SB_REQUIRED_FC_TX,
         PN_PIPE_SB_PREFERRED_FC_RX,
+        PN_PIPE_SB_ALIGNED_DATA,
 };
 
 /* Phonet pipe flow control models */