From: Stefano Stabellini
xen_swiotlb_init calls swiotlb_late_init_with_tbl, which fails with
-ENOMEM if the swiotlb has already been initialized.
Add an explicit check io_tlb_default_mem != NULL at the beginning of
xen_swiotlb_init. If the swiotlb is already initialized print a warning
and retur
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_WARNIN
On Tue, 11 May 2021, Boris Ostrovsky wrote:
> 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_defau
