On Wed, Dec 13, 2017 at 12:32:45PM +1100, Stephen Rothwell wrote:
> Hi all,
>
> After merging the bpf-next tree, today's linux-next build (arm
> multi_v7_defconfig) failed like this:
>
> kernel/events/core.o: In function `perf_ioctl':
> core.c:(.text+0x98c4): undefined reference to `bpf_event_query_prog_array'
>
> Caused by commit
>
> f371b304f12e ("bpf/tracing: allow user space to query prog array on the
> same tp")
>
> CONFIG_BPF_SYSCALL is not set for this build.
>
> I have used the bpf-next tree from next-20171212 for today.
Thanks for the report.
Yonghong, please take a look and send a followup fix based on bpf-next tree.
