Re: [PATCH 2/2] xen/swiotlb: check if the swiotlb has already been initialized

[Boris Ostrovsky]

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.ostrv...@oracle.com>