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Re: [PATCH 2/2] xen/swiotlb: check if the swiotlb has already been initialized
- To: Stefano Stabellini <sstabellini@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
- Date: Tue, 11 May 2021 19:37:47 -0400
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- Cc: hch@xxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Stefano Stabellini <stefano.stabellini@xxxxxxxxxx>, jgross@xxxxxxxx
- Delivery-date: Tue, 11 May 2021 23:38:12 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 5/11/21 1:41 PM, Stefano Stabellini wrote:
> --- a/drivers/xen/swiotlb-xen.c
> +++ b/drivers/xen/swiotlb-xen.c
> @@ -164,6 +164,11 @@ int __ref xen_swiotlb_init(void)
> int rc = -ENOMEM;
> char *start;
>
> + if (io_tlb_default_mem != NULL) {
> + printk(KERN_WARNING "Xen-SWIOTLB: swiotlb buffer already
> initialized\n");
pr_warn().
Reviewed-by: Boris Ostrovsky <boris.ostrvsky@xxxxxxxxxx>
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