On Tue, 30 May 2017 13:20:12 +0200 Arnd Bergmann <arnd@xxxxxxxx> wrote: > An unknown change in the kernel headers caused a build regression > in an MTD partition driver: > > In file included from drivers/mtd/bcm47xxpart.c:12:0: > include/linux/bcm47xx_nvram.h: In function 'bcm47xx_nvram_init_from_mem': > include/linux/bcm47xx_nvram.h:27:10: error: 'ENOTSUPP' undeclared (first use in this function) > > Clearly we want to include linux/errno.h here. > > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Acked-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx> > --- > include/linux/bcm47xx_nvram.h | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/include/linux/bcm47xx_nvram.h b/include/linux/bcm47xx_nvram.h > index 2793652fbf66..a414a2b53e41 100644 > --- a/include/linux/bcm47xx_nvram.h > +++ b/include/linux/bcm47xx_nvram.h > @@ -8,6 +8,7 @@ > #ifndef __BCM47XX_NVRAM_H > #define __BCM47XX_NVRAM_H > > +#include <linux/errno.h> > #include <linux/types.h> > #include <linux/kernel.h> > #include <linux/vmalloc.h>
