Christophe Leroy <christophe.le...@c-s.fr> writes: > diff --git a/arch/powerpc/mm/ioremap.c b/arch/powerpc/mm/ioremap.c > new file mode 100644 > index 000000000000..5d2645193568 > --- /dev/null > +++ b/arch/powerpc/mm/ioremap.c > @@ -0,0 +1,350 @@ > +/* > + * This file contains the routines for mapping IO areas > + * > + * Derived from arch/powerpc/mm/pgtable_32.c and > + * arch/powerpc/mm/pgtable_64.c > + * > + * SPDX-License-Identifier: GPL-2.0
This goes at the top of the file as: // SPDX-License-Identifier: GPL-2.0 See: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/license-rules.rst?#n56 > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/types.h> > +#include <linux/mm.h> > +#include <linux/vmalloc.h> > +#include <linux/init.h> > +#include <linux/highmem.h> > +#include <linux/memblock.h> > +#include <linux/slab.h> > + > +#include <asm/pgtable.h> > +#include <asm/pgalloc.h> > +#include <asm/fixmap.h> > +#include <asm/io.h> > +#include <asm/setup.h> > +#include <asm/sections.h> I needed: +#include <asm/machdep.h> To fix: ../arch/powerpc/mm/ioremap.c: In function ‘ioremap_wc’: ../arch/powerpc/mm/ioremap.c:290:6: error: ‘ppc_md’ undeclared (first use in this function) if (ppc_md.ioremap) ^~~~~~ cheers
