On Mon, May 02, 2016 at 12:59:19PM +0200, Arnd Bergmann wrote:
When CONFIG_OF is disabled, we have to include linux/errno.h before including of_graph.h, or get build errors like in the newly added sun4i drm driver:
In file included from ../drivers/gpu/drm/sun4i/sun4i_drv.c:14:0: include/linux/of_graph.h: In function 'of_graph_parse_endpoint': include/linux/of_graph.h:58:10: error: 'ENOSYS' undeclared (first use in this function)
A better solution is to ensure that the header can be included by itself, so let's include linux/errno.h here to fix the error we just got, and any similar future error.
Signed-off-by: Arnd Bergmann arnd@arndb.de Fixes: 9026e0d122ac ("drm: Add Allwinner A10 Display Engine support")
include/linux/of_graph.h | 1 + 1 file changed, 1 insertion(+)
Applied.
Rob