From: "Hu.Yadi" <hu.yadi@xxxxxxx> Two issues comes up while building selftest/landlock: the first one is as to gettid net_test.c: In function ‘set_service’: net_test.c:91:45: warning: implicit declaration of function ‘gettid’; did you mean ‘getgid’? [-Wimplicit-function-declaration] "_selftests-landlock-net-tid%d-index%d", gettid(), ^~~~~~ getgid net_test.c:(.text+0x4e0): undefined reference to `gettid' the second is compiler error gcc -Wall -O2 -isystem fs_test.c -lcap -o /home/linux/tools/testing/selftests/landlock/fs_test fs_test.c:4575:9: error: initializer element is not constant .mnt = mnt_tmp, ^~~~~~~ this patch is to fix them Signed-off-by: Hu.Yadi <hu.yadi@xxxxxxx> Suggested-by: Jiao <jiaoxupo@xxxxxxx> Reviewed-by:Berlin <berlin@xxxxxxx> --- tools/testing/selftests/landlock/fs_test.c | 5 ++++- tools/testing/selftests/landlock/net_test.c | 3 +-- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/landlock/fs_test.c b/tools/testing/selftests/landlock/fs_test.c index 18e1f86a6234..93eb40a09073 100644 --- a/tools/testing/selftests/landlock/fs_test.c +++ b/tools/testing/selftests/landlock/fs_test.c @@ -4572,7 +4572,10 @@ FIXTURE_VARIANT(layout3_fs) /* clang-format off */ FIXTURE_VARIANT_ADD(layout3_fs, tmpfs) { /* clang-format on */ - .mnt = mnt_tmp, + .mnt = { + .type = "tmpfs", + .data = "size=4m,mode=700", + }, .file_path = file1_s1d1, }; diff --git a/tools/testing/selftests/landlock/net_test.c b/tools/testing/selftests/landlock/net_test.c index 929e21c4db05..8fb357de8c55 100644 --- a/tools/testing/selftests/landlock/net_test.c +++ b/tools/testing/selftests/landlock/net_test.c @@ -18,7 +18,6 @@ #include <sys/prctl.h> #include <sys/socket.h> #include <sys/un.h> - #include "common.h" const short sock_port_start = (1 << 10); @@ -88,7 +87,7 @@ static int set_service(struct service_fixture *const srv, case AF_UNIX: srv->unix_addr.sun_family = prot.domain; sprintf(srv->unix_addr.sun_path, - "_selftests-landlock-net-tid%d-index%d", gettid(), + "_selftests-landlock-net-tid%ld-index%d", syscall(SYS_gettid), index); srv->unix_addr_len = SUN_LEN(&srv->unix_addr); srv->unix_addr.sun_path[0] = '\0'; -- 2.23.0