Hi Alexei,
On Sat, Apr 16, 2016 at 05:47:42PM -0700, Alexei Starovoitov wrote:
> On Sat, Apr 16, 2016 at 10:29:33PM +0200, Arnd Bergmann wrote:
> > Two new functions in bpf contain a cast from a 'u64' to a
> > pointer. This works on 64-bit architectures but causes a warning
> > on all 32-bit architectures:
> >
> > kernel/trace/bpf_trace.c: In function 'bpf_perf_event_output_tp':
> > kernel/trace/bpf_trace.c:350:13: error: cast to pointer from integer of
> > different size [-Werror=int-to-pointer-cast]
> > u64 ctx = *(long *)r1;
> >
> > This changes the cast to first convert the u64 argument into a uintptr_t,
> > which is guaranteed to be the same size as a pointer.
> >
> > Signed-off-by: Arnd Bergmann <a...@arndb.de>
> > Fixes: 9940d67c93b5 ("bpf: support bpf_get_stackid() and
> > bpf_perf_event_output() in tracepoint programs")
>
> Thanks.
> Acked-by: Alexei Starovoitov <a...@kernel.org>
>
> I guess I started to rely on 0-day build-bot too much.
> This patch has been in my tree for 2+ weeks and then in net-next and
> I didn't receive a single email from build-bot about this warning,
> though I do receive them for my other work-in-progress stuff. Odd.
> Fengguang, any idea why build-bot sometimes silent?
Sorry I went off for some time.. Philip, would you help have a check?
Thanks,
Fengguang
