how to handle indirect kconfig dependencies

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

Thanks,
---
~Randy [or just kill off select]
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

---

• Follow-Ups:
  • Re: how to handle indirect kconfig dependencies
    • From: Randy Dunlap <[email protected]>
  • Re: how to handle indirect kconfig dependencies
    • From: James Bottomley <[email protected]>
  • Re: how to handle indirect kconfig dependencies
    • From: Stefan Richter <[email protected]>

• Prev by Date: Re: [patch] hotplug CPU: clean up hotcpu_notifier() use
• Next by Date: memory hotplug function redefinition/confusion
• Previous by thread: Re: [PATCH/RFC] kthread API conversion for dvb_frontend and av7110
• Next by thread: Re: how to handle indirect kconfig dependencies
• Index(es):
  • Date
  • Thread

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]