Re: [PATCH -next] optprobes: fix kconfig depends/selects

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On 09/12/10 03:49, Felipe Contreras wrote:
> On Thu, Aug 12, 2010 at 10:26 PM, Randy Dunlap <randy.dunlap@xxxxxxxxxx> wrote:
>> From: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
>>
>> KALLSYMS and KALLSYMS_ALL depend on DEBUG_KERNEL, so add that dependency.
>> KALLSYMS_ALL depends on KALLSYMS, so select both of them, not just KALLSYMS_ALL.
>>
>> warning: (OPTPROBES && KPROBES && HAVE_OPTPROBES && !PREEMPT || MTD_UBI_DEBUG && MTD && SYSFS && MTD_UBI || UBIFS_FS_DEBUG && MISC_FILESYSTEMS && UBIFS_FS || LOCKDEP && DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT || LATENCYTOP && HAVE_LATENCYTOP_SUPPORT) selects KALLSYMS_ALL which has unmet direct dependencies (DEBUG_KERNEL && KALLSYMS)
>>
>> Signed-off-by: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
>> Cc:     Ananth N Mavinakayanahalli <ananth@xxxxxxxxxx>
>> Cc:     Anil S Keshavamurthy <anil.s.keshavamurthy@xxxxxxxxx>
>> Cc:     "David S. Miller" <davem@xxxxxxxxxxxxx>
>> Cc:     Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
>> ---
>>  arch/Kconfig |    2 ++
>>  1 file changed, 2 insertions(+)
>>
>> --- linux-next-20100810.orig/arch/Kconfig
>> +++ linux-next-20100810/arch/Kconfig
>> @@ -45,6 +45,8 @@ config OPTPROBES
>>        def_bool y
>>        depends on KPROBES && HAVE_OPTPROBES
>>        depends on !PREEMPT
>> +       depends on DEBUG_KERNEL
>> +       select KALLSYMS
>>        select KALLSYMS_ALL
>>
>>  config HAVE_EFFICIENT_UNALIGNED_ACCESS
>> --
> 
> This causes another problem:
> 
> arch/Kconfig:33:error: recursive dependency detected!
> arch/Kconfig:33:	symbol KPROBES depends on KALLSYMS
> init/Kconfig:825:	symbol KALLSYMS is selected by OPTPROBES
> arch/Kconfig:44:	symbol OPTPROBES depends on KPROBES
> 
> The 'select KALLSYMS' is redundant.
> 
> Otherwise: Signed-off-by: Felipe Contreras <felipe.contreras@xxxxxxxxx>

Thanks for checking.  I saw this problem just a day or two ago myself.

Dropping the select does not eliminate the kconfig warning.
I'll try something else.

-- 
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***
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