On Thu, 16 Nov 2006 20:07:41 -0800 Randy Dunlap wrote:
> Hi,
>
> I have a (randconfig) build of 2.6.19-rc5-mm2 with:
>
> CONFIG_DEBUG_READAHEAD=y
>
> which selects DEBUG_FS, so DEBUG_FS=y, but DEBUG_FS depends on
> SYSFS, and SYSFS is not set in the randconfig.
>
> This randconfig causes this build error:
>
> fs/built-in.o: In function `debugfs_init':
> inode.c:(.init.text+0xdb2): undefined reference to `kernel_subsys'
>
> so the question is:
> (How) can kconfig follow the dependency chain and either
> - prevent this odd config combination or
> - see that 'select DEBUG_FS' implies 'select SYSFS' and then enable SYSFS
> ?
>
> I don't believe that the right answer is to add
> depends on SYSFS
> to DEBUG_READAHEAD.
>
>
> .config is at http://oss.oracle.com/~rdunlap/configs/config-readahead-debugfs
Roman,
Here's another one for your consideration.
USB_APPLEDISPLAY selects BACKLIGHT_LCD_SUPPORT & BACKLIGHT_CLASS_DEVICE;
drivers/backlight/Kconfig depends on SYSFS (but SYSFS=n)
http://oss.oracle.com/~rdunlap/configs/config-backlight-appledisplay
---
~Randy
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