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SubjectRe: mm/kmsan/instrumentation.c:41:26: warning: no previous prototype for function '__msan_metadata_ptr_for_load_n'
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On 1/11/23 13:10, Alexander Potapenko wrote:
> On Mon, Jan 2, 2023 at 11:01 AM Vlastimil Babka <vbabka@suse.cz> wrote:
>>
>> +CC kmsan folks.
>>
>> I think it's another side-effect where CONFIG_SLUB_TINY excludes KASAN which
>> in turn allows KMSAN to be enabled and uncover a pre-existing issue.
>
> Thanks for bringing this up, I'll fix this as Marco proposes.
>
> Would it also make sense to exclude KMSAN with CONFIG_SLUB_TINY?

If the root causes are fixed, then it's not necessary? AFAIK SLUB_TINY only
indirectly caused KMSAN to be newly enabled in some configs, but there's no
fundamental incompatibility that I know of.

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