Re: linux-next: build failure after merge of the aio tree

From: Benjamin LaHaise
Date: Tue Jan 12 2016 - 11:38:42 EST

On Tue, Jan 12, 2016 at 04:40:34PM +1100, Stephen Rothwell wrote:
> Hi Benjamin,
> After merging the aio tree, today's linux-next build (arm
> multi_v7_defconfig) failed like this:
> fs/built-in.o: In function `aio_thread_op_foo_at':
> file.c:(.text+0x43808): undefined reference to `__get_user_bad'
> file.c:(.text+0x43838): undefined reference to `__get_user_bad'

This is very strange. It seems to imply that __get_user() doesn't
handle 64 bit values, which is completely broken behaviour on the
architecture's part if true. Can any ARM folks comment on the right
fix here?


> Caused by commit
> 150a0b4905f1 ("aio: add support for async openat()")
> I have used the aio tree from next-20160111 for today.
> --
> Cheers,
> Stephen Rothwell sfr@xxxxxxxxxxxxxxxx

"Thought is the essence of where you are now."