The init_from_defaults parameter allows to detect if a state has been
initialized from default values, i.e. state_load failed.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
common/state/state.c | 7 +++++++
common/state/state.h | 2 ++
2 files changed, 9 insertions(+)
diff --git a/common/state/state.c b/common/state/state.c
index 5a1a1af856..cb979328c1 100644
--- a/common/state/state.c
+++ b/common/state/state.c
@@ -99,6 +99,7 @@ static int state_do_load(struct state *state, enum state_flags flags)
goto out;
}
+ state->init_from_defaults = 0;
state->dirty = 0;
out:
@@ -179,10 +180,14 @@ static struct state *state_new(const char *name)
state->dirty = 1;
dev_add_param_bool(&state->dev, "dirty", state_set_deny, NULL, &state->dirty,
NULL);
+
state->save_on_shutdown = 1;
dev_add_param_bool(&state->dev, "save_on_shutdown", NULL, NULL,
&state->save_on_shutdown, NULL);
+ dev_add_param_bool(&state->dev, "init_from_defaults", state_set_deny, NULL,
+ &state->init_from_defaults, NULL);
+
list_add_tail(&state->list, &state_list);
return state;
@@ -643,6 +648,8 @@ struct state *state_new_from_node(struct device_node *node, char *path,
goto out_release_state;
}
+ state->init_from_defaults = 1;
+
ret = of_register_fixup(of_state_fixup, state);
if (ret) {
goto out_release_state;
diff --git a/common/state/state.h b/common/state/state.h
index fcc6b9f5cd..da1c6acaeb 100644
--- a/common/state/state.h
+++ b/common/state/state.h
@@ -107,7 +107,9 @@ struct state {
uint32_t magic;
struct list_head variables; /* Sorted list of variables */
+
unsigned int dirty;
+ unsigned int init_from_defaults;
unsigned int save_on_shutdown;
struct state_backend_format *format;
--
2.15.1
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