Hi Arnd,

On Sat,  9 May 2020 00:01:31 +0200 Arnd Bergmann <arnd@arndb.de> wrote:
>
> In order to call kmap_atomic() etc, we need to include linux/highmem.h:
> 
> drivers/gpu/drm/vmwgfx/vmwgfx_blit.c: In function 'vmw_bo_cpu_blit_line':
> drivers/gpu/drm/vmwgfx/vmwgfx_blit.c:377:4: error: implicit declaration of function 'kunmap_atomic'; did you mean 'in_atomic'? [-Werror=implicit-function-declaration]
>   377 |    kunmap_atomic(d->src_addr);
>       |    ^~~~~~~~~~~~~
>       |    in_atomic
> drivers/gpu/drm/vmwgfx/vmwgfx_blit.c:391:5: error: implicit declaration of function 'kmap_atomic_prot' [-Werror=implicit-function-declaration]
>   391 |     kmap_atomic_prot(d->dst_pages[dst_page],
>       |     ^~~~~~~~~~~~~~~~
> drivers/gpu/drm/vmwgfx/vmwgfx_blit.c:390:16: warning: assignment to 'u8 *' {aka 'unsigned char *'} from 'int' makes pointer from integer without a cast [-Wint-conversion]
>   390 |    d->dst_addr =
>       |                ^
> drivers/gpu/drm/vmwgfx/vmwgfx_blit.c:403:16: warning: assignment to 'u8 *' {aka 'unsigned char *'} from 'int' makes pointer from integer without a cast [-Wint-conversion]
>   403 |    d->src_addr =
>       |                ^
> 
> Fixes: 46385a895322 ("drm: remove drm specific kmap_atomic code")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  drivers/gpu/drm/vmwgfx/vmwgfx_blit.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c b/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c
> index 94d456a1d1a9..1629427d5734 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c
> @@ -27,6 +27,7 @@
>   **************************************************************************/
>  
>  #include "vmwgfx_drv.h"
> +#include <linux/highmem.h>
>  
>  /*
>   * Template that implements find_first_diff() for a generic
> -- 
> 2.26.0
> 

Added to linux-next for Monday (in case Andrew doesn't get around to it).

-- 
Cheers,
Stephen Rothwell