linux-kernel - Re: [PATCH 01/13] kmsan: Export kmsan_handle

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Message-ID: <b1b0e05b-099d-4667-a54e-16575e83a327@csgroup.eu>
Date: Mon, 19 Feb 2024 19:37:16 +0000
From: Christophe Leroy <christophe.leroy@...roup.eu>
To: Nicholas Miehlbradt <nicholas@...ux.ibm.com>, "glider@...gle.com"
	<glider@...gle.com>, "elver@...gle.com" <elver@...gle.com>,
	"dvyukov@...gle.com" <dvyukov@...gle.com>, "akpm@...ux-foundation.org"
	<akpm@...ux-foundation.org>, "mpe@...erman.id.au" <mpe@...erman.id.au>,
	"npiggin@...il.com" <npiggin@...il.com>
CC: "linux-mm@...ck.org" <linux-mm@...ck.org>, "kasan-dev@...glegroups.com"
	<kasan-dev@...glegroups.com>, "iii@...ux.ibm.com" <iii@...ux.ibm.com>,
	"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 01/13] kmsan: Export kmsan_handle_dma



Le 14/12/2023 à 06:55, Nicholas Miehlbradt a écrit :
> kmsan_handle_dma is required by virtio drivers. Export kmsan_handle_dma
> so that the drivers can be compiled as modules.
> 
> Signed-off-by: Nicholas Miehlbradt <nicholas@...ux.ibm.com>
> ---
>   mm/kmsan/hooks.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/mm/kmsan/hooks.c b/mm/kmsan/hooks.c
> index 7a30274b893c..3532d9275ca5 100644
> --- a/mm/kmsan/hooks.c
> +++ b/mm/kmsan/hooks.c
> @@ -358,6 +358,7 @@ void kmsan_handle_dma(struct page *page, size_t offset, size_t size,
>   		size -= to_go;
>   	}
>   }
> +EXPORT_SYMBOL(kmsan_handle_dma);

virtio is GPL and all exports inside virtio are EXPORT_SYMBOL_GPL().
Should this one be _GPL as well ?

>   
>   void kmsan_handle_dma_sg(struct scatterlist *sg, int nents,
>   			 enum dma_data_direction dir)