From: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Date: Wed, 11 Sep 2019 12:08:32 +0100
Subject: devlink: add unknown 'fw_load_policy' value
Patch-mainline: v5.4-rc1
Git-commit: 64f658ded48eccd23d429d636d49a03b3f53d741
References: bsc#1154353

Similar to the 'reset_dev_on_drv_probe' devlink parameter, it is useful
to have an unknown value which can be used by drivers to report that the
hardware value isn't recognized or is otherwise invalid instead of
failing the operation.

This is especially useful for u8/enum parameters.

Suggested-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 include/uapi/linux/devlink.h |    1 +
 1 file changed, 1 insertion(+)

--- a/include/uapi/linux/devlink.h
+++ b/include/uapi/linux/devlink.h
@@ -203,6 +203,7 @@ enum devlink_param_fw_load_policy_value
 	DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_DRIVER,
 	DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_FLASH,
 	DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_DISK,
+	DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_UNKNOWN,
 };
 
 enum devlink_param_reset_dev_on_drv_probe_value {