[RFC PATCH net-next 5/9] include: netdevice: Add module firmware flashing in progress flag to net_device

[Danielle Ratson <danieller@nvidia.com>]

Some operations cannot be performed during the firmware flashing
process. For example, flashing firmware on a device which is already in
a flashing process should be forbidden.

In order to veto those scenarios, add a flag in 'struct net_device' that
indicates when a firmware flash is taking place on the module.

Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
---
 include/linux/netdevice.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 118c40258d07..af42125ead69 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2061,6 +2061,8 @@ enum netdev_stat_type {
  *
  *	@threaded:	napi threaded mode is enabled
  *
+ *	@module_fw_flash_in_progress:	Module firmware flashing is in progress.
+ *
  *	@net_notifier_list:	List of per-net netdev notifier block
  *				that follow this device when it is moved
  *				to another network namespace.
@@ -2447,7 +2449,7 @@ struct net_device {
 	bool			proto_down;
 	unsigned		wol_enabled:1;
 	unsigned		threaded:1;
-
+	unsigned		module_fw_flash_in_progress:1;
 	struct list_head	net_notifier_list;
 
 #if IS_ENABLED(CONFIG_MACSEC)
-- 
2.40.1