Subject: Re: linux-next: Tree for Oct 5 (warnings: a. trace; b. mm/migrate)

From: Dave Hansen <[email-masked]>
Date: Wed, 6 Oct 2021 07:52:07 -0700

On 10/5/21 1:46 PM, Randy Dunlap wrote:
> On 10/5/21 1:06 AM, Stephen Rothwell wrote:
>> Hi all,
>>
>> Changes since 20211001:
> 
> on x86_64:
...
> b. randconfig: KCONFIG_SEED=0xFD1CE406
> 
> ../mm/migrate.c:3216:22: error: 'migrate_on_reclaim_callback' defined
> but not used [-Werror=unused-function]
>  static int __meminit migrate_on_reclaim_callback(struct notifier_block
> *self,
>                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~
> ../mm/migrate.c:3197:13: error: 'set_migration_target_nodes' defined but
> not used [-Werror=unused-function]
>  static void set_migration_target_nodes(void)
>              ^~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> 
> (example usage to get the randconfig files:
> KCONFIG_SEED=0xBFBEA13C make [ARCH=x86_64] randconfig
> )

Hi Randy,

I'm having a heck of a time reproducing this one.  Any chance you could
share an exact sha1 for the tree where you're hitting this, and maybe
even the actual .config (just in case the KCONFIG_SEED isn't working
somehow).

I've tried a few linux-next trees as well as the mmotm, mmots and
mainline with the culprit patch applied.  No luck reproducing this so far.