On Tue, Jul 6, 2021 at 6:18 AM Huacai Chen <chenhuacai@xxxxxxxxxxx> wrote: > +#ifdef CONFIG_SWIOTLB > +/* > + * Optional platform hook to call swiotlb_setup(). > + */ > +extern void plat_swiotlb_setup(void); > + > +#else > + > +static inline void plat_swiotlb_setup(void) {} > + > +#endif /* CONFIG_SWIOTLB */ I guess this accidentally slipped into the wrong patch? It doesn't appear to be NUMA related. > diff --git a/arch/loongarch/loongson64/dma.c b/arch/loongarch/loongson64/dma.c > new file mode 100644 > index 000000000000..f259f70c75fa > --- /dev/null > +++ b/arch/loongarch/loongson64/dma.c > @@ -0,0 +1,59 @@ > +// SPDX-License-Identifier: GPL-2.0 Same for this file. Arnd