ide-cd: move VERBOSE_IDE_CD_ERRORS code to ide-cd_verbose.c

* Rename ide-cd kernel module to ide-cd_mod in preparation to moving code out
  from ide-cd.[c,h].   Add MODULE_ALIAS("ide-cd") to preserve compatibility.

* Move VERBOSE_IDE_CD_ERRORS code from ide-cd.[c,h] to ide-cd_verbose.c.

  ide-cd_verbose.c is IDE subsystem independent and may be easily converted
  into generic library usable by other drivers (i.e. libata) if needed.

* Add CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS config option to drivers/ide/Kconfig
  replacing VERBOSE_IDE_CD_ERRORS define.  Make this config option enabled by
  default and visible only if CONFIG_EMBEDDED is defined.

before the patch:
   text    data     bss     dec     hex filename
  22841     360    1056   24257    5ec1 drivers/ide/ide-cd.o

after the patch w/ CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y:
   text    data     bss     dec     hex filename
  22857     360    1056   24273    5ed1 drivers/ide/ide-cd_mod.o

after the patch w/ CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=n:
   text    data     bss     dec     hex filename
  15091     360    1056   16507    407b drivers/ide/ide-cd_mod.o

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 92b01170d8f3..e42a465f5717 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -206,6 +206,15 @@ config BLK_DEV_IDECD
           To compile this driver as a module, choose M here: the
           module will be called ide-cd.
 
+config BLK_DEV_IDECD_VERBOSE_ERRORS
+        bool "Verbose error logging for IDE/ATAPI CDROM driver" if EMBEDDED
+        depends on BLK_DEV_IDECD
+        default y
+        help
+          Turn this on to have the driver print out the meanings of the
+          ATAPI error codes.  This will use up additional 8kB of kernel-space
+          memory, though.
+
 config BLK_DEV_IDETAPE
         tristate "Include IDE/ATAPI TAPE support (EXPERIMENTAL)"
         depends on EXPERIMENTAL