On 7/18/20 2:48 AM, Christoph Hellwig wrote: > On Fri, Jul 17, 2020 at 06:38:50PM -0700, Guenter Roeck wrote: >> Hi, >> >> On Tue, Jul 14, 2020 at 12:55:00PM +0200, Christoph Hellwig wrote: >>> Use the uaccess_kernel helper instead of duplicating it. >>> >>> Signed-off-by: Christoph Hellwig <hch@xxxxxx> >> >> This patch causes a severe hiccup with my mps2-an385 boot test. > > I guess that is a nommu config? > Correct. > Can you try this patch? > > diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h > index b19c9bec1f7a63..cc7daf374a6eb6 100644 > --- a/arch/arm/include/asm/uaccess.h > +++ b/arch/arm/include/asm/uaccess.h > @@ -263,7 +263,7 @@ extern int __put_user_8(void *, unsigned long long); > */ > #define USER_DS KERNEL_DS > > -#define uaccess_kernel() (true) > +#define uaccess_kernel() (false) > #define __addr_ok(addr) ((void)(addr), 1) > #define __range_ok(addr, size) ((void)(addr), 0) > #define get_fs() (KERNEL_DS) > With this change, the error message is gone. However, it still does not work. The image just hangs instead. Guenter
