This is a note to let you know that I've just added the patch titled selftests/bpf: Fix xdp_synproxy compilation failure in 32-bit arch to the 6.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: selftests-bpf-fix-xdp_synproxy-compilation-failure-i.patch and it can be found in the queue-6.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 566f46774f6d29d26192b9f37ed11b061f38ba6e Author: Yang Jihong <yangjihong1@xxxxxxxxxx> Date: Fri Nov 11 11:08:36 2022 +0800 selftests/bpf: Fix xdp_synproxy compilation failure in 32-bit arch [ Upstream commit e4c9cf0ce8c413c2030e8fb215551d7e0582ee7b ] 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> Signed-off-by: Andrii Nakryiko <andrii@xxxxxxxxxx> Acked-by: Yonghong Song <yhs@xxxxxx> Link: https://lore.kernel.org/bpf/20221111030836.37632-1-yangjihong1@xxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/tools/testing/selftests/bpf/xdp_synproxy.c b/tools/testing/selftests/bpf/xdp_synproxy.c index ff35320d2be9..410a1385a01d 100644 --- a/tools/testing/selftests/bpf/xdp_synproxy.c +++ b/tools/testing/selftests/bpf/xdp_synproxy.c @@ -104,7 +104,8 @@ static void parse_options(int argc, char *argv[], unsigned int *ifindex, __u32 * { "tc", no_argument, NULL, 'c' }, { NULL, 0, NULL, 0 }, }; - unsigned long mss4, mss6, wscale, ttl; + unsigned long mss4, wscale, ttl; + unsigned long long mss6; unsigned int tcpipopts_mask = 0; if (argc < 2) @@ -286,7 +287,7 @@ static int syncookie_open_bpf_maps(__u32 prog_id, int *values_map_fd, int *ports prog_info = (struct bpf_prog_info) { .nr_map_ids = 8, - .map_ids = (__u64)map_ids, + .map_ids = (__u64)(unsigned long)map_ids, }; info_len = sizeof(prog_info);