atm: add release_cb() callback to vcc

The immediate use case for this is that it will allow us to ensure that a
pppoatm queue is woken after it has to drop a packet due to the sock being
locked.

Note that 'release_cb' is called when the socket is *unlocked*. This is
not to be confused with vcc_release() — which probably ought to be called
vcc_close().

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Acked-by: Krzysztof Mazur <krzysiek@podlesie.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h
index 72db2af902a8..c1da539f5e28 100644
--- a/include/linux/atmdev.h
+++ b/include/linux/atmdev.h
@@ -99,6 +99,7 @@ struct atm_vcc {
         struct atm_dev  *dev;           /* device back pointer */
         struct atm_qos  qos;            /* QOS */
         struct atm_sap  sap;            /* SAP */
+        void (*release_cb)(struct atm_vcc *vcc); /* release_sock callback */
         void (*push)(struct atm_vcc *vcc,struct sk_buff *skb);
         void (*pop)(struct atm_vcc *vcc,struct sk_buff *skb); /* optional */
         int (*push_oam)(struct atm_vcc *vcc,void *cell);