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ubi: Introduce vol_ignored()

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This makes the logic more easy to follow.

Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Richard Weinberger 2016-06-14 10:12:13 +02:00
parent d139d300a9
commit 243a4f8126
2 changed files with 33 additions and 6 deletions
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24
drivers/mtd/ubi/attach.c
View File

@ -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)

15
drivers/mtd/ubi/ubi.h
View File

@ -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__ */