On Fri, Mar 13, 2020 at 04:07:15PM -0700, Andrii Nakryiko wrote:
> Cast void * to long before casting to 32-bit __u32 to avoid compilation
> warning.
>
> Signed-off-by: Andrii Nakryiko <andriin@xxxxxx>
> ---
> tools/testing/selftests/bpf/progs/sockmap_parse_prog.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/testing/selftests/bpf/progs/sockmap_parse_prog.c b/tools/testing/selftests/bpf/progs/sockmap_parse_prog.c
> index a5c6d5903b22..a9c2bdbd841e 100644
> --- a/tools/testing/selftests/bpf/progs/sockmap_parse_prog.c
> +++ b/tools/testing/selftests/bpf/progs/sockmap_parse_prog.c
> @@ -12,7 +12,7 @@ int bpf_prog1(struct __sk_buff *skb)
> __u32 lport = skb->local_port;
> __u32 rport = skb->remote_port;
> __u8 *d = data;
> - __u32 len = (__u32) data_end - (__u32) data;
I think this line can be removed. "len" is not used.
> + __u32 len = (__u32)(long)data_end - (__u32)(long)data;
> int err;
>
> if (data + 10 > data_end) {
> --
> 2.17.1
>
