From: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> The defconfig compiles without linux/mm.h. With mm.h included the include chain leands to: | CC kernel/locking/percpu-rwsem.o | In file included from include/linux/huge_mm.h:8, | from include/linux/mm.h:567, | from arch/hexagon/include/asm/uaccess.h:, | from include/linux/uaccess.h:11, | from include/linux/sched/task.h:11, | from include/linux/sched/signal.h:9, | from include/linux/rcuwait.h:6, | from include/linux/percpu-rwsem.h:8, | from kernel/locking/percpu-rwsem.c:6: | include/linux/fs.h:1422:29: error: array type has incomplete element type 'struct percpu_rw_semaphore' | 1422 | struct percpu_rw_semaphore rw_sem[SB_FREEZE_LEVELS]; once rcuwait.h includes linux/sched/signal.h. Remove the linux/mm.h include. Reported-by: kbuild test robot <lkp@xxxxxxxxx> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Brian Cain <bcain@xxxxxxxxxxxxxx> Cc: linux-hexagon@xxxxxxxxxxxxxxx --- V3: New patch --- arch/hexagon/include/asm/uaccess.h | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/hexagon/include/asm/uaccess.h b/arch/hexagon/include/asm/uaccess.h index 00cb38faad0c4..c1019a736ff13 100644 --- a/arch/hexagon/include/asm/uaccess.h +++ b/arch/hexagon/include/asm/uaccess.h @@ -10,7 +10,6 @@ /* * User space memory access functions */ -#include <linux/mm.h> #include <asm/sections.h> /* -- 2.26.0.rc2
