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Subject[PATCH 2/7] ubi: Introduce vol_ignored()
Date
This makes the logic more easy to follow.

Signed-off-by: Richard Weinberger <richard@nod.at>
---
drivers/mtd/ubi/attach.c | 24 ++++++++++++++++++------
drivers/mtd/ubi/ubi.h | 15 +++++++++++++++
2 files changed, 33 insertions(+), 6 deletions(-)

diff --git a/drivers/mtd/ubi/attach.c b/drivers/mtd/ubi/attach.c
index cc04ca8..6e5fb1d 100644
--- a/drivers/mtd/ubi/attach.c
+++ b/drivers/mtd/ubi/attach.c
@@ -803,6 +803,20 @@ out_unlock:
return err;
}

+static bool vol_ignored(int vol_id)
+{
+ switch (vol_id) {
+ case UBI_LAYOUT_VOLUME_ID:
+ return true;
+ }
+
+#ifdef CONFIG_MTD_UBI_FASTMAP
+ return ubi_is_fm_vol(vol_id);
+#else
+ return false;
+#endif
+}
+
/**
* scan_peb - scan and process UBI headers of a PEB.
* @ubi: UBI device description object
@@ -995,17 +1009,15 @@ static int scan_peb(struct ubi_device *ubi, struct ubi_attach_info *ai,
*vid = vol_id;
if (sqnum)
*sqnum = be64_to_cpu(vidh->sqnum);
- if (vol_id > UBI_MAX_VOLUMES && vol_id != UBI_LAYOUT_VOLUME_ID) {
+ if (vol_id > UBI_MAX_VOLUMES && !vol_ignored(vol_id)) {
int lnum = be32_to_cpu(vidh->lnum);

/* Unsupported internal volume */
switch (vidh->compat) {
case UBI_COMPAT_DELETE:
- if (vol_id != UBI_FM_SB_VOLUME_ID
- && vol_id != UBI_FM_DATA_VOLUME_ID) {
- ubi_msg(ubi, "\"delete\" compatible internal volume %d:%d found, will remove it",
- vol_id, lnum);
- }
+ ubi_msg(ubi, "\"delete\" compatible internal volume %d:%d found, will remove it",
+ vol_id, lnum);
+
err = add_to_list(ai, pnum, vol_id, lnum,
ec, 1, &ai->erase);
if (err)
diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h
index 61d4e99..91075b6 100644
--- a/drivers/mtd/ubi/ubi.h
+++ b/drivers/mtd/ubi/ubi.h
@@ -1105,4 +1105,19 @@ static inline int idx2vol_id(const struct ubi_device *ubi, int idx)
return idx;
}

+/**
+ * ubi_is_fm_vol - check whether a volume ID is a Fastmap volume.
+ * @vol_id: volume ID
+ */
+static inline bool ubi_is_fm_vol(int vol_id)
+{
+ switch (vol_id) {
+ case UBI_FM_SB_VOLUME_ID:
+ case UBI_FM_DATA_VOLUME_ID:
+ return true;
+ }
+
+ return false;
+}
+
#endif /* !__UBI_UBI_H__ */
--
2.7.3
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