lkml.org 
[lkml]   [2006]   [Nov]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: how to handle indirect kconfig dependencies
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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-11-26 04:51    [W:0.094 / U:4.848 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site