return count;
}
+ /*
+ * We voluntarily do not take into account the skip_check flag
+ * as we want to make sure what we wrote was correctly written.
+ */
err = ubi_check_volume(ubi, vol->vol_id);
if (err < 0)
return err;
req->vol_type != UBI_STATIC_VOLUME)
goto bad;
+ if (req->flags & ~UBI_VOL_VALID_FLGS)
+ goto bad;
+
+ if (req->flags & UBI_VOL_SKIP_CRC_CHECK_FLG &&
+ req->vol_type != UBI_STATIC_VOLUME)
+ goto bad;
+
if (req->alignment > ubi->leb_size)
goto bad;
vol->dev.class = &ubi_class;
vol->dev.groups = volume_dev_groups;
+ if (req->flags & UBI_VOL_SKIP_CRC_CHECK_FLG)
+ vol->skip_check = 1;
+
spin_lock(&ubi->volumes_lock);
if (vol_id == UBI_VOL_NUM_AUTO) {
/* Find unused volume ID */
__s8 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,
+};
+
+#define UBI_VOL_VALID_FLGS (UBI_VOL_SKIP_CRC_CHECK_FLG)
+
/**
* struct ubi_mkvol_req - volume description data structure used in
* volume creation requests.
* @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
__s32 alignment;
__s64 bytes;
__s8 vol_type;
- __s8 padding1;
+ __u8 flags;
__s16 name_len;
__s8 padding2[4];
char name[UBI_MAX_VOLUME_NAME + 1];