This cmsg_so_mark.sh test will hang on non-amd64 systems because of the infinity loop for argument parsing in cmsg_sender.

Variable "o" in cs_parse_args() for taking getopt() should be an int, otherwise it will be 255 when getopt() returns -1 on non-amd64 system and thus causing infinity loop.

Link: https://lore.kernel.org/lkml/CA+G9fYsM2k7mrF7W4V_TrZ-qDauWM394=8yEJ=-t1oUg8_... Signed-off-by: Po-Hsu Lin po-hsu.lin@canonical.com --- tools/testing/selftests/net/cmsg_sender.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/cmsg_sender.c b/tools/testing/selftests/net/cmsg_sender.c index 75dd83e..24b21b1 100644 --- a/tools/testing/selftests/net/cmsg_sender.c +++ b/tools/testing/selftests/net/cmsg_sender.c @@ -110,7 +110,7 @@ static void __attribute__((noreturn)) cs_usage(const char *bin)

static void cs_parse_args(int argc, char *argv[]) { - char o; + int o;

while ((o = getopt(argc, argv, "46sS:p:m:M:d:tf:F:c:C:l:L:H:")) != -1) { switch (o) {