summaryrefslogtreecommitdiff
path: root/include/net
diff options
context:
space:
mode:
authorJiri Pirko <jiri@nvidia.com>2023-02-10 11:01:26 +0100
committerDavid S. Miller <davem@davemloft.net>2023-02-13 09:49:14 +0000
commitafd888c3e19ceb5247158fe2fabbf7234937a515 (patch)
tree6ee81524048814d2708e1997aaf29f55c9444dcf /include/net
parentfa2f921f3bf1ed98956ad341b920a55aab69bc35 (diff)
devlink: make sure driver does not read updated driverinit param before reload
The driverinit param purpose is to serve the driver during init/reload time to provide a value, either default or set by user. Make sure that driver does not read value updated by user before the reload is performed. Hold the new value in a separate struct and switch it during reload. Note that this is required to be eventually possible to call devl_param_driverinit_value_get() without holding instance lock. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/devlink.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/net/devlink.h b/include/net/devlink.h
index 2e85a5970a32..8ed960345f37 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -489,6 +489,10 @@ struct devlink_param_item {
const struct devlink_param *param;
union devlink_param_value driverinit_value;
bool driverinit_value_valid;
+ union devlink_param_value driverinit_value_new; /* Not reachable
+ * until reload.
+ */
+ bool driverinit_value_new_valid;
};
enum devlink_param_generic_id {