Hi Arnd, Thanks for the fix, sorry for breaking the build. Arnd Bergmann <arnd@xxxxxxxx> wrote on Wed, 26 Sep 2018 15:04:38 +0200: > Recent MTD changes caused a minor build regression on OMAP1: > > In file included from arch/arm/mach-omap1/devices.c:31: > arch/arm/mach-omap1/common.h:85:39: error: 'struct nand_chip' declared inside parameter list will not be visible outside of this definition or declaration [-Werror] > > Fixes: 1002aed789bc ("mtd: rawnand: plat_nand: Pass a nand_chip object to all platform_nand_ctrl hooks") > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> > --- > arch/arm/mach-omap1/common.h | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm/mach-omap1/common.h b/arch/arm/mach-omap1/common.h > index 11b87a4c84d4..82f2c065040a 100644 > --- a/arch/arm/mach-omap1/common.h > +++ b/arch/arm/mach-omap1/common.h > @@ -82,6 +82,7 @@ void omap1_restart(enum reboot_mode, const char *); > > extern void __init omap_check_revision(void); > > +struct nand_chip; > extern void omap1_nand_cmd_ctl(struct nand_chip *this, int cmd, > unsigned int ctrl); > Currently I see "#include <linux/mtd/mtd.h>" at the top of this file. That's where the "struct mtd_info" that has been replaced by a "struct nand_chip" was declared. The nand_chip object is declared in <linux/mtd/rawnand.h>. I think you can remove this include (unneeded anymore for what I see). Then, either you keep the nand_chip forward declaration, or replace the mtd.h include into the rawnand.h one? Thanks, Miquèl