powerpc allyesconfig fails like this:

drivers/video/fbdev/controlfb.c: In function 'controlfb_mmap': drivers/video/fbdev/controlfb.c:756:23: error: implicit declaration of function 'pgprot_cached_wthru'; did you mean 'pgprot_cached'? [-Werror=implicit-function-declaration] 756 | vma->vm_page_prot = pgprot_cached_wthru(vma->vm_page_prot); | ^~~~~~~~~~~~~~~~~~~ | pgprot_cached drivers/video/fbdev/controlfb.c:756:23: error: incompatible types when assigning to type 'pgprot_t' {aka 'struct <anonymous>'} from type 'int'

Fix it by adding missing PPC32 dependency.

Fixes: a07a63b0e24d ("video: fbdev: controlfb: add COMPILE_TEST support") Reported-by: Stephen Rothwell sfr@canb.auug.org.au Reported-by: kbuild test robot lkp@intel.com Cc: Sam Ravnborg sam@ravnborg.org Cc: Daniel Vetter daniel.vetter@ffwll.ch Signed-off-by: Bartlomiej Zolnierkiewicz b.zolnierkie@samsung.com --- drivers/video/fbdev/controlfb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

Index: b/drivers/video/fbdev/controlfb.c =================================================================== --- a/drivers/video/fbdev/controlfb.c +++ b/drivers/video/fbdev/controlfb.c @@ -47,7 +47,7 @@ #include <linux/nvram.h> #include <linux/adb.h> #include <linux/cuda.h> -#ifdef CONFIG_PPC_PMAC +#if defined(CONFIG_PPC_PMAC) && defined(CONFIG_PPC32) #include <asm/prom.h> #include <asm/btext.h> #endif @@ -55,7 +55,7 @@ #include "macmodes.h" #include "controlfb.h"

-#ifndef CONFIG_PPC_PMAC +#if !defined(CONFIG_PPC_PMAC) || !defined(CONFIG_PPC32) #define invalid_vram_cache(addr) #undef in_8 #undef out_8