On Sat, 7 Apr 2007 18:47:20 -0400 (EDT) John Anthony Kazos Jr. wrote:
> (Linux v2.6.20.6.)
>
> The function md_autodetect_dev is defined in drivers/md/md.c. Its
> declaration is on line 1443, outside of conditionals. However, both its
> use on line 1455 and its definition on line 5600 are inside "#ifndef
> MODULE" conditionals. So it seems obvious that the declaration should be
> inside conditionals as well.
>
> However, this function is separately declared and used in
> fs/partitions/check.c but not inside the same conditional, which means if
> md.c is compiled as a module, check.c will be referencing an undefined
> symbol.
I don't get a build error when BLK_DEV_MD=m. Do you?
Do you want to determine why there is no build error?
Hint: look at include/linux/autoconf.h.
> Should the conditionals around md_autodetect_dev be changed to make sure
> CONFIG_BLK_DEV_MD=y, or does the function need to be extracted from md.c
> so it can be used by check.c in any case?
---
~Randy
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