[PATCH] state: make first boot with uninitialized legacy state less verbose

[Ahmad Fatoum]

With non-legacy state, barebox checks a header for a specific magic
signature. This can be all zero on an uninitialized state, so in that
particular case, bump down the log message severity.

Signed-off-by: Ahmad Fatoum <ahmad at a3f.at>
---
Applies on top of https://lore.barebox.org/barebox/20211125161042.3829996-3-a.fatoum@pengutronix.de/
---
 common/state/backend_bucket_direct.c | 4 ++--
 common/state/backend_storage.c       | 7 +++++--
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/common/state/backend_bucket_direct.c b/common/state/backend_bucket_direct.c
index 517aec60634b..117cdfb46c9e 100644
--- a/common/state/backend_bucket_direct.c
+++ b/common/state/backend_bucket_direct.c
@@ -76,9 +76,9 @@ static int state_backend_bucket_direct_read(struct state_backend_storage_bucket
 		if (meta.magic != ~0 && !!meta.magic)
 			bucket->wrong_magic = 1;
 		if (!IS_ENABLED(CONFIG_STATE_BACKWARD_COMPATIBLE)) {
-			dev_err(direct->dev, "No meta data header found\n");
 			dev_dbg(direct->dev, "Enable backward compatibility or increase stride size\n");
-			return -EINVAL;
+			return dev_err_state_init(direct->dev, meta.magic ? -EINVAL : -ENOMEDIUM,
+						  "No meta data header found\n");
 		}
 		read_len = direct->max_size;
 		if (lseek(direct->fd, direct->offset, SEEK_SET) !=
diff --git a/common/state/backend_storage.c b/common/state/backend_storage.c
index 72f8bcf521ad..c55d22e37f70 100644
--- a/common/state/backend_storage.c
+++ b/common/state/backend_storage.c
@@ -156,10 +156,13 @@ int state_storage_read(struct state_backend_storage *storage,
 		totalbuckets++;
 
 		ret = bucket->read(bucket, &bucket->buf, &bucket->len);
-		if (ret == -EUCLEAN)
+		if (ret == -EUCLEAN) {
 			bucket->needs_refresh = 1;
-		else if (ret)
+		} else if (ret) {
+			if (ret == -ENOMEDIUM)
+				zerobuckets++;
 			continue;
+		}
 
 		/*
 		 * Verify the buffer crcs. The buffer length is passed in the len argument,
-- 
2.33.0