[PATCH 4.19 006/267] selftests: bpf: fix use of undeclared RET_IF macro

Greg Kroah-Hartman
2020-06-19T14:54:13Z

From: Lorenz Bauer <lmb@cloudflare.com>

commit 634efb750435 ("selftests: bpf: Reset global state between
reuseport test runs") uses a macro RET_IF which doesn't exist in
the v4.19 tree. It is defined as follows:

#define RET_IF(condition, tag, format...) ({
if (CHECK_FAIL(condition)) {
printf(tag " " format);
return;
}
})

CHECK_FAIL in turn is defined as:

#define CHECK_FAIL(condition) ({
int __ret = !!(condition);
int __save_errno = errno;
if (__ret) {
test__fail();
fprintf(stdout, "%s:FAIL:%d\n", __func__, __LINE__);
}
errno = __save_errno;
__ret;
})

Replace occurences of RET_IF with CHECK. This will abort the test binary
if clearing the intermediate state fails.

Fixes: 634efb750435 ("selftests: bpf: Reset global state between reuseport test runs")
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
tools/testing/selftests/bpf/test_select_reuseport.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

--- a/tools/testing/selftests/bpf/test_select_reuseport.c
+++ b/tools/testing/selftests/bpf/test_select_reuseport.c
@@ -616,13 +616,13 @@ static void cleanup_per_test(void)

for (i = 0; i < NR_RESULTS; i++) {
err = bpf_map_update_elem(result_map, &i, &zero, BPF_ANY);
- RET_IF(err, "reset elem in result_map",
- "i:%u err:%d errno:%d\n", i, err, errno);
+ CHECK(err, "reset elem in result_map",
+ "i:%u err:%d errno:%d\n", i, err, errno);
}

err = bpf_map_update_elem(linum_map, &zero, &zero, BPF_ANY);
- RET_IF(err, "reset line number in linum_map", "err:%d errno:%d\n",
- err, errno);
+ CHECK(err, "reset line number in linum_map", "err:%d errno:%d\n",
+ err, errno);

for (i = 0; i < REUSEPORT_ARRAY_SIZE; i++)
close(sk_fds[i]);