On Tue, Sep 22, 2015 at 03:46:51PM -0600, Ross Zwisler wrote: > copy_user_page() is needed by DAX. Without this we get a compile error > for DAX on SH: > > fs/dax.c:280:2: error: implicit declaration of function ‘copy_user_page’ > [-Werror=implicit-function-declaration] > copy_user_page(vto, (void __force *)vfrom, vaddr, to); > ^ > > This was done with a random config that happened to include DAX support. > > This patch has only been compile tested. > > Signed-off-by: Ross Zwisler <[email protected]> > Reported-by: Geert Uytterhoeven <[email protected]> > --- > Apologies for the resend, I wanted to add some more recipients. > --- > arch/sh/include/asm/page.h | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/sh/include/asm/page.h b/arch/sh/include/asm/page.h > index fe20d14..ceb5201 100644 > --- a/arch/sh/include/asm/page.h > +++ b/arch/sh/include/asm/page.h > @@ -59,6 +59,7 @@ pages_do_alias(unsigned long addr1, unsigned long addr2) > > #define clear_page(page) memset((void *)(page), 0, PAGE_SIZE) > extern void copy_page(void *to, void *from); > +#define copy_user_page(to, from, vaddr, pg) __copy_user(to, from, PAGE_SIZE) > > struct page; > struct vm_area_struct;
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