UML defconfig building failed again

[WANG Cong <xiyou.wangcong@gmail.com>]

Hi, Jeff!

I used today's linus-tree and defconfig to compile uml, but it failed. Error messages are
things like:

In file included from include/asm/processor-generic.h:13,
                 from include/asm/processor.h:77,
                 from include/asm/thread_info.h:11,
                 from include/linux/thread_info.h:21,
                 from include/linux/preempt.h:9,
                 from include/linux/spinlock.h:49,
                 from include/linux/seqlock.h:29,
                 from include/linux/time.h:8,
                 from include/linux/timex.h:57,
                 from include/linux/sched.h:53,
                 from arch/um/include/sysdep/kernel-offsets.h:2,
                 from arch/um/kernel/asm-offsets.c:1:
include/asm/ptrace.h:50: warning: ‘struct user_fxsr_struct’ declared inside parameter list
include/asm/ptrace.h:50: warning: its scope is only this definition or declaration, which is probably not what you want
include/asm/ptrace.h:52: warning: ‘struct user_fxsr_struct’ declared inside parameter list
In file included from include/linux/timer.h:5,
                 from include/linux/sched.h:87,
                 from arch/um/include/sysdep/kernel-offsets.h:2,
                 from arch/um/kernel/asm-offsets.c:1:
include/linux/ktime.h: In function ‘ktime_set’:
include/linux/ktime.h:84: warning: comparison is always false due to limited range of data type

{snip}

It seems like CONFIG_X86_32 was not set. Any ideas?

Thanks.