bloblist: check bloblist with specified buffer size

Instead of expecting the bloblist total size to be the same as the
pre-allocated buffer size, practically we are more interested in
whether the pre-allocated buffer size is bigger than the bloblist
total size.

Signed-off-by: Raymond Mao <[email protected]>
Reviewed-by: Ilias Apalodimas <[email protected]>

1 files changed, 5 insertions, 4 deletions

diff --git a/include/bloblist.h b/include/bloblist.h
index f7e800f6812..cc78259e5a9 100644
--- a/include/bloblist.h
+++ b/include/bloblist.h
@@ -348,12 +348,13 @@ int bloblist_new(ulong addr, uint size, uint flags, uint align_log2);
  * bloblist_check() - Check if a bloblist exists
  *
  * @addr: Address of bloblist
- * @size: Expected size of blobsize, or 0 to detect the size
+ * @size: Reserved space size for blobsize, or 0 to use the total size
  * Return: 0 if OK, -ENOENT if the magic number doesn't match (indicating that
- * there problem is no bloblist at the given address), -EPROTONOSUPPORT
+ * there problem is no bloblist at the given address) or any fields for header
+ * size, used size and total size do not match, -EPROTONOSUPPORT
  * if the version does not match, -EIO if the checksum does not match,
- * -EFBIG if the expected size does not match the detected size, -ENOSPC
- * if the size is not large enough to hold the headers
+ * -EFBIG if the reserved space size is small than the total size or total size
+ * is 0
  */
 int bloblist_check(ulong addr, uint size);