[PATCH 1/8] netpoll: rx_flags bugfix

[Matt Mackall <mpm@xxxxxxxxxxx>]

Initialize npinfo->rx_flags.  The way it stands now, this will have random
garbage, and so will incur a locking penalty even when an rx_hook isn't
registered and we are not active in the netpoll polling code.

Signed-off-by: Jeff Moyer <jmoyer@xxxxxxxxxx>
Signed-off-by: Matt Mackall <mpm@xxxxxxxxxxx>

--- linux-2.6.12/net/core/netpoll.c.orig        2005-07-01 14:02:56.039174635 
-0400
+++ linux-2.6.12/net/core/netpoll.c     2005-07-01 14:03:16.688739508 -0400
@@ -639,6 +639,7 @@ int netpoll_setup(struct netpoll *np)
                if (!npinfo)
                        goto release;
 
+               npinfo->rx_flags = 0;
                npinfo->rx_np = NULL;
                npinfo->poll_lock = SPIN_LOCK_UNLOCKED;
                npinfo->poll_owner = -1;