net: dcb: application priority is per net_device

The app_data priority may not be the same for all net devices.
In order for stacks with application notifiers to identify the
specific net device dcb_app_type should be passed in the ptr.

This allows handlers to use dev_get_by_name() to pin priority
to net devices.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c
index 6b03f561caecfdd72c1fc0df2785c435acdb3cc4..712ca026040a518e3719dee17e7ebc1de181d696 100644 (file)
--- a/net/dcb/dcbnl.c
+++ b/net/dcb/dcbnl.c
@@ -1613,6 +1613,10 @@ EXPORT_SYMBOL(dcb_getapp);
 u8 dcb_setapp(struct net_device *dev, struct dcb_app *new)
 {
        struct dcb_app_type *itr;
+       struct dcb_app_type event;
+
+       memcpy(&event.name, dev->name, sizeof(event.name));
+       memcpy(&event.app, new, sizeof(event.app));
 
        spin_lock(&dcb_lock);
        /* Search for existing match and replace */
@@ -1644,7 +1648,7 @@ u8 dcb_setapp(struct net_device *dev, struct dcb_app *new)
        }
 out:
        spin_unlock(&dcb_lock);
-       call_dcbevent_notifiers(DCB_APP_EVENT, new);
+       call_dcbevent_notifiers(DCB_APP_EVENT, &event);
        return 0;
 }
 EXPORT_SYMBOL(dcb_setapp);