include/asm/cpu-single.h:44: warning: type qualifiers ignored on function return type
  CC      arch/arm/mm/mm-armv.o
In file included from include/asm/proc-fns.h:154,
                 from include/asm/system.h:95,
                 from include/asm/bitops.h:22,
                 from include/linux/bitops.h:77,
                 from include/linux/thread_info.h:20,
                 from include/linux/spinlock.h:12,
                 from include/linux/capability.h:45,
                 from include/linux/sched.h:7,
                 from include/linux/module.h:10,
                 from arch/arm/mm/mm-armv.c:13:
include/asm/cpu-single.h:44: warning: type qualifiers ignored on function return type
  CC      arch/arm/mm/proc-syms.o
In file included from include/asm/proc-fns.h:154,
                 from include/asm/system.h:95,
                 from include/asm/bitops.h:22,
                 from include/linux/bitops.h:77,
                 from include/linux/thread_info.h:20,
                 from include/linux/spinlock.h:12,
                 from include/linux/capability.h:45,
                 from include/linux/sched.h:7,
                 from include/linux/module.h:10,
                 from arch/arm/mm/proc-syms.c:10:
include/asm/cpu-single.h:44: warning: type qualifiers ignored on function return type
  CC      arch/arm/mm/alignment.o
In file included from include/asm/proc-fns.h:154,
                 from include/asm/system.h:95,
                 from include/asm/bitops.h:22,
                 from include/linux/bitops.h:77,
                 from include/linux/kernel.h:15,
                 from arch/arm/mm/alignment.c:16:
include/asm/cpu-single.h:44: warning: type qualifiers ignored on function return type
arch/arm/mm/alignment.c: In function âproc_alignment_writeâ:
arch/arm/mm/alignment.c:119: error: read-only variable â__r2â used as âasmâ output
arch/arm/mm/alignment.c:119: error: read-only variable â__r2â used as âasmâ output
arch/arm/mm/alignment.c:119: error: read-only variable â__r2â used as âasmâ output
arch/arm/mm/alignment.c:119: error: read-only variable â__r2â used as âasmâ output
make[1]: *** [arch/arm/mm/alignment.o] Error 1
make: *** [arch/arm/mm] Error 2