[PATCH printk 6/6] netconsole: Always perform unsafe flushing on panic/kdb/restart

[John Ogness]

As a legacy console the netconsole would perform unsafe flushing
during panic/kdb/restart. With commit 7eab73b18630 ("netconsole:
convert to NBCON console infrastructure") the netconsole is now an
NBCON console, however it uses the CON_NBCON_ATOMIC_UNSAFE flag and
this prevents unsafe flushing except for at the very end of panic().

Enable unsafe flushing policies to allow the netconsole to perform
unsafe flushing during all panic/kdb/restart variations, just as it
did when it was a legacy console.

Signed-off-by: John Ogness <john.ogness@xxxxxxxxxxxxx>
---
 drivers/net/netconsole.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index 267254f046de9..6c1587958e915 100644
--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -2695,6 +2695,8 @@ static void free_param_target(struct netconsole_target *nt)
 static struct console netconsole_ext = {
 	.name = "netcon_ext",
 	.flags = CON_ENABLED | CON_EXTENDED | CON_NBCON | CON_NBCON_ATOMIC_UNSAFE,
+	.unsafe_flush_flags = NBCON_PANIC_FLUSH | NBCON_PANIC_PRINTK | NBCON_KDB |
+			      NBCON_NORMAL_NOTHREAD,
 	.write_thread = netconsole_write_ext,
 	.write_atomic = netconsole_write_ext,
 	.device_lock = netconsole_device_lock,
@@ -2704,6 +2706,8 @@ static struct console netconsole_ext = {
 static struct console netconsole = {
 	.name = "netcon",
 	.flags = CON_ENABLED | CON_NBCON | CON_NBCON_ATOMIC_UNSAFE,
+	.unsafe_flush_flags = NBCON_PANIC_FLUSH | NBCON_PANIC_PRINTK | NBCON_KDB |
+			      NBCON_NORMAL_NOTHREAD,
 	.write_thread = netconsole_write_basic,
 	.write_atomic = netconsole_write_basic,
 	.device_lock = netconsole_device_lock,
-- 
2.47.3