On 2021/3/23 11:23, Wan Jiabing wrote: > linux/compat.h has been included at line 8.So we remove > the duplicate one at line 12. > line 12 one is added via eb351d75ce1e ("mm/process_vm_access.c: include compat.h") to fix the build error: mm/process_vm_access.c:277:5: error: implicit declaration of function 'in_compat_syscall'; did you mean 'in_ia32_syscall'? [-Werror=implicit-function-declaration] There might be something wrong. > Signed-off-by: Wan Jiabing <wanjiabing@xxxxxxxx> > --- > mm/process_vm_access.c | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c > index f5fee9cf90f8..4bcc11958089 100644 > --- a/mm/process_vm_access.c > +++ b/mm/process_vm_access.c > @@ -9,7 +9,6 @@ > #include <linux/mm.h> > #include <linux/uio.h> > #include <linux/sched.h> > -#include <linux/compat.h> > #include <linux/sched/mm.h> > #include <linux/highmem.h> > #include <linux/ptrace.h> >