linux-kernel - Re: [PATCH] powerpc/mm: export symbols for lazy_mmu

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Message-ID: <7a26c273-ebe1-4b5a-8d6d-1b81cfa80656@arm.com>
Date: Wed, 17 Dec 2025 18:37:46 +0100
From: Kevin Brodsky <kevin.brodsky@....com>
To: Andrew Morton <akpm@...ux-foundation.org>,
 "Ritesh Harjani (IBM)" <ritesh.list@...il.com>
Cc: linux-kernel@...r.kernel.org, Ryan Roberts <ryan.roberts@....com>,
 linux-mm@...ck.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH] powerpc/mm: export symbols for lazy_mmu_mode KUnit tests

On 17/12/2025 18:30, Andrew Morton wrote:
> On Wed, 17 Dec 2025 22:15:16 +0530 Ritesh Harjani (IBM) <ritesh.list@...il.com> wrote:
>
>> ../arch/powerpc/mm/book3s64/hash_tlb.c:158:1: error: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL_IF_KUNIT’ [-Werror=implicit-int]
>> ../arch/powerpc/mm/book3s64/hash_tlb.c:158:1: error: parameter names (without types) in function declaration [-Werror]
>>   AR      init/built-in.a
>> cc1: all warnings being treated as errors
>> make[6]: *** [../scripts/Makefile.build:287: arch/powerpc/mm/book3s64/hash_tlb.o] Error 1
>> make[5]: *** [../scripts/Makefile.build:556: arch/powerpc/mm/book3s64] Error 2
>>
>>
>> IMO, we will need the following header in hash_tlb.c
>>
>> +#include <kunit/visibility.h>

Ha strange it built fine for me without it... Maybe different config
options.

> Yeah, I already added Ritesh's patch which had this include, so I
> think we're all good now.

Great thanks both!

- Kevin