[PATCH 1/8] netpoll: rx_flags bugfix

Matt Mackall
2005-08-12T02:21:48Z

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@redhat.com>
Signed-off-by: Matt Mackall <mpm@selenic.com>

--- 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;