update the BLK_DEV_HD help text
Many people will see this option the first time now that it is in
drivers/block/
Make it clear that virtually noone needs it.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: rmk@arm.linux.org.uk
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index c390974..61ad8d6 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -434,27 +434,15 @@
lguest or QEMU based VMMs (like KVM or Xen). Say Y or M.
config BLK_DEV_HD
- bool "Old hard disk (MFM/RLL/IDE) driver"
+ bool "Very old hard disk (MFM/RLL/IDE) driver"
depends on HAVE_IDE
depends on !ARM || ARCH_RPC || ARCH_SHARK || BROKEN
help
- There are two drivers for MFM/RLL/IDE hard disks. Most people use
- the newer enhanced driver, but this old one is still around for two
- reasons. Some older systems have strange timing problems and seem to
- work only with the old driver (which itself does not work with some
- newer systems). The other reason is that the old driver is smaller,
- since it lacks the enhanced functionality of the new one. This makes
- it a good choice for systems with very tight memory restrictions, or
- for systems with only older MFM/RLL/ESDI drives. Choosing the old
- driver can save 13 KB or so of kernel memory.
+ This is a very old hard disk driver that lacks the enhanced
+ functionality of the newer ones.
- If you want to use this driver together with the new one you have
- to use "hda=noprobe hdb=noprobe" kernel parameters to prevent the new
- driver from probing the primary interface.
+ It is required for systems with ancient MFM/RLL/ESDI drives.
- If you are unsure, then just choose the Enhanced IDE/MFM/RLL driver
- instead of this one. For more detailed information, read the
- Disk-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>.
+ If unsure, say N.
endif # BLK_DEV