Re: localmodconfig - "intel_rapl_perf config not found!!"

[Randy Dunlap]

> On Tue, Aug 25, 2020 at 2:13 PM Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote:
>>
>> so intel_rapl_perf is listed in your lsmod.cfg file:
>> intel_rapl_perf        16384  2
>>
>> You say Linux 5.8.3.  I'm guessing that your "make localmodconfig" tree
>> is Linux 5.8.3 (?).  What kernel version are you running?
>> I think that it's older, and some file/module names have changed since then.

On 8/25/20 1:34 PM, Nathan Royce wrote:
> Correct. I'm building for 5.8.3 and I'm currently on 5.7.4 (1 month
> doesn't seem particularly old).

Yes, things can change quickly.


I don't see any support in streamline_config.pl for Kconfig symbols
and/or modules whose names have changed.  Trying to do something
like that would be a never-ending job (a la job security).

At least it gave you a warning that it couldn't find a Kconfig symbol
for that module.


>From your original email:
| I'm going to assume it has something to do with the naming and it's
| supposed to be associated with "Intel/AMD rapl performance events
| (CONFIG_PERF_EVENTS_INTEL_RAPL)" which I already have set to 'Y'.

Yes, commit fd3ae1e1587d64ef8cc8e361903d33625458073e changed the module name
since it now supports both Intel and AMD.


| Right below that, I also get 'Use of uninitialized value
| $ENV{"LMC_KEEP"} in split at ./scripts/kconfig/streamline_config.pl
| line 596.', but again that is the sort of thing that may warrant a new
| email specific to localmodconfig author(s). But again maybe not
| because I take it more as a warning given I don't make use of
| LMC_KEEP.


@Changbin: can you fix this little bug in streamline_config.pl, please? ^^^^^


-- 
~Randy