2 files changed, 20 insertions, 2 deletions
diff --git a/include/mtd/ubi-media.h b/include/mtd/ubi-media.h
index 08bec3e..132cc24 100644
--- a/include/mtd/ubi-media.h
+++ b/include/mtd/ubi-media.h
@@ -61,6 +61,11 @@ enum {
  * Volume flags used in the volume table record.
  *
  * @UBI_VTBL_AUTORESIZE_FLG: auto-resize this volume
+ * @UBI_VTBL_SKIP_CRC_CHECK_FLG: skip the CRC check done on a static volume at
+ *				 open time. Should only be set on volumes that
+ *				 are used by upper layers doing this kind of
+ *				 check. Main use-case for this flag is
+ *				 boot-time reduction
  *
  * %UBI_VTBL_AUTORESIZE_FLG flag can be set only for one volume in the volume
  * table. UBI automatically re-sizes the volume which has this flag and makes
@@ -92,6 +97,7 @@ enum {
  */
 enum {
 	UBI_VTBL_AUTORESIZE_FLG = 0x01,
+	UBI_VTBL_SKIP_CRC_CHECK_FLG = 0x02,
 };
 
 /*
diff --git a/include/mtd/ubi-user.h b/include/mtd/ubi-user.h
index 2b50dad..707c4f2 100644
--- a/include/mtd/ubi-user.h
+++ b/include/mtd/ubi-user.h
@@ -279,6 +279,18 @@ struct ubi_attach_req {
 	int8_t  padding[10];
 };
 
+/*
+ * UBI volume flags.
+ *
+ * @UBI_VOL_SKIP_CRC_CHECK_FLG: skip the CRC check done on a static volume at
+ *				open time. Only valid for static volumes and
+ *				should only be used if the volume user has a
+ *				way to verify data integrity
+ */
+enum {
+	UBI_VOL_SKIP_CRC_CHECK_FLG = 0x1,
+};
+
 /**
  * struct ubi_mkvol_req - volume description data structure used in
  *                        volume creation requests.
@@ -286,7 +298,7 @@ struct ubi_attach_req {
  * @alignment: volume alignment
  * @bytes: volume size in bytes
  * @vol_type: volume type (%UBI_DYNAMIC_VOLUME or %UBI_STATIC_VOLUME)
- * @padding1: reserved for future, not used, has to be zeroed
+ * @flags: volume flags (%UBI_VOL_SKIP_CRC_CHECK_FLG)
  * @name_len: volume name length
  * @padding2: reserved for future, not used, has to be zeroed
  * @name: volume name
@@ -315,7 +327,7 @@ struct ubi_mkvol_req {
 	int32_t alignment;
 	int64_t bytes;
 	int8_t vol_type;
-	int8_t padding1;
+	uint8_t flags;
 	int16_t name_len;
 	int8_t padding2[4];
 	char name[UBI_MAX_VOLUME_NAME + 1];