Hi Arnd. On Wed, Feb 16, 2022 at 02:13:29PM +0100, Arnd Bergmann wrote: > From: Arnd Bergmann <arnd@xxxxxxxx> > > sparc64 uses address space identifiers to differentiate between kernel > and user space, using ASI_P for kernel threads but ASI_AIUS for normal > user space, with the option of changing between them. > > As nothing really changes the ASI any more, just hardcode ASI_AIUS > everywhere. Kernel threads are not allowed to access __user pointers > anyway. > > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> > --- > arch/sparc/include/asm/processor_64.h | 4 ---- > arch/sparc/include/asm/switch_to_64.h | 4 +--- > arch/sparc/include/asm/thread_info_64.h | 4 +--- > arch/sparc/include/asm/uaccess_64.h | 20 +------------------- > arch/sparc/kernel/process_64.c | 12 ------------ > arch/sparc/kernel/traps_64.c | 2 -- > arch/sparc/lib/NGmemcpy.S | 3 +-- > arch/sparc/mm/init_64.c | 7 ++++--- > 8 files changed, 8 insertions(+), 48 deletions(-) I think you somehow missed the Kconfig change, and also the related sparc32 change which continue to have set_fs() after this patch. I did not manage to review the patch - as I am too unfamiliar with the code paths and the set_fs() removal changes. Sam