Re: [PATCH bpf v2] selftests/bpf: Fix xdp_synproxy compilation failure in 32-bit arch

[Yonghong Song]

On 11/10/22 7:08 PM, Yang Jihong wrote:
> xdp_synproxy fails to be compiled in the 32-bit arch, log is as follows:
>
>    xdp_synproxy.c: In function 'parse_options':
>    xdp_synproxy.c:175:36: error: left shift count >= width of type [-Werror=shift-count-overflow]
>      175 |                 *tcpipopts = (mss6 << 32) | (ttl << 24) | (wscale << 16) | mss4;
>          |                                    ^~
>    xdp_synproxy.c: In function 'syncookie_open_bpf_maps':
>    xdp_synproxy.c:289:28: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
>      289 |                 .map_ids = (__u64)map_ids,
>          |                            ^
>
> Fix it.
>
> Fixes: fb5cd0ce70d4 ("selftests/bpf: Add selftests for raw syncookie helpers")
> Signed-off-by: Yang Jihong <yangjihong1@xxxxxxxxxx>

Acked-by: Yonghong Song <yhs@xxxxxx>