ubifs filesystem image: line up and improve Config.in options

Triggered by the 'some comment required here', this patch updates the Config.in
comments for the ubifs filesystem image options. This includes:
- 'erase block' --> 'eraseblock' (following mtd online documentation)
- remove 'UBI' prefix to make options uniform. Sometimes the option is not a
  property of UBI but rather of the flash. Also, line up the name of the option
  with the help of mkfs.ubifs.
- add help text on all options, referring to the mkfs.ubifs/ubinize options

Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

diff --git a/fs/ubifs/Config.in b/fs/ubifs/Config.in
index 4cf5d131eee4bb9b58495256325274a091ee7d42..70ea81e5d75ad25c65145b4b688b963ae37972bd 100644 (file)
--- a/fs/ubifs/Config.in
+++ b/fs/ubifs/Config.in
@@ -6,27 +6,33 @@ config BR2_TARGET_ROOTFS_UBIFS
 if BR2_TARGET_ROOTFS_UBIFS
 
 config BR2_TARGET_ROOTFS_UBIFS_LEBSIZE
-       hex "UBI logical erase block size"
+       hex "logical eraseblock size"
        default 0x1f800
+       help
+         Logical eraseblock (LEB) size. The value provided here is
+         passed to the -e/--leb-size option of mkfs.ubifs.
 
 config BR2_TARGET_ROOTFS_UBIFS_MINIOSIZE
-       hex "UBI minimum I/O size"
+       hex "minimum I/O unit size"
        default 0x800
        help
-         Some comment required here
+         Minimum I/O unit size. The value provided here is passed
+         to the -m/--min-io-size option of mkfs.ubifs/ubinize.
 
 config BR2_TARGET_ROOTFS_UBIFS_MAXLEBCNT
-       int "Maximum LEB count"
+       int "maximum logical eraseblock count"
        default 2048
        help
-         Some comment required here
+         Maximum logical eraseblock (LEB) count. The value provided
+         here is passed to the -c/--max-leb-cnt option of mkfs.ubifs.
 
 choice
        prompt "ubifs runtime compression"
        default BR2_TARGET_ROOTFS_UBIFS_RT_LZO
        help
          Select which compression format to use at run-time within
-         the ubifs file system.
+         the ubifs file system. The choice made here is passed to
+         the -x/--compr option of mkfs.ubifs
 
 config BR2_TARGET_ROOTFS_UBIFS_RT_NONE
        bool "no compression"
@@ -97,18 +103,21 @@ config BR2_TARGET_ROOTFS_UBI
 if BR2_TARGET_ROOTFS_UBI
 
 config BR2_TARGET_ROOTFS_UBI_PEBSIZE
-       hex "UBI physical erase block size"
+       hex "physical eraseblock size"
        default 0x20000
        help
-         Tells ubinize the physical eraseblock size of the flash chip
-         the ubi image is created for.
+         Tells ubinize the physical eraseblock (PEB) size of the
+         flash chip the ubi image is created for. The value provided
+         here is passed to the -p/--peb-size option of ubinize.
 
 config BR2_TARGET_ROOTFS_UBI_SUBSIZE
-       int "UBI sub-page size"
+       int "sub-page size"
        default 512
        help
          Tells ubinize that the flash supports sub-pages and the sub-page
-         size. Use 0 if subpages are not supported on flash chip.
+         size. Use 0 if sub-pages are not supported on flash chip.
+         The value provided here is passed to the -s/--sub-page-size
+         option of ubinize.
 
 config BR2_TARGET_ROOTFS_UBI_OPTS
        string "Additional ubinize options"