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Date: Fri, 2 Aug 2019 19:59:16 +0000
From: Andrii Nakryiko <andriin@...com>
To: Stanislav Fomichev <sdf@...gle.com>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"bpf@...r.kernel.org" <bpf@...r.kernel.org>
CC: "davem@...emloft.net" <davem@...emloft.net>,
"ast@...nel.org" <ast@...nel.org>,
"daniel@...earbox.net" <daniel@...earbox.net>,
"andrii.nakryiko@...il.com" <andrii.nakryiko@...il.com>
Subject: Re: [PATCH bpf-next 2/3] selftests/bpf: test_progs: test__printf ->
printf
On 8/2/19 10:17 AM, Stanislav Fomichev wrote:
> Now that test__printf is a simple wraper around printf, let's drop it
> (and test__vprintf as well).
>
> Cc: Andrii Nakryiko <andriin@...com>
> Signed-off-by: Stanislav Fomichev <sdf@...gle.com>
> ---
Acked-by: Andrii Nakryiko <andriin@...com>
> .../selftests/bpf/prog_tests/bpf_verif_scale.c | 4 ++--
> .../testing/selftests/bpf/prog_tests/l4lb_all.c | 2 +-
> .../testing/selftests/bpf/prog_tests/map_lock.c | 10 +++++-----
> .../selftests/bpf/prog_tests/send_signal.c | 4 ++--
> .../testing/selftests/bpf/prog_tests/spinlock.c | 2 +-
> .../bpf/prog_tests/stacktrace_build_id.c | 4 ++--
> .../bpf/prog_tests/stacktrace_build_id_nmi.c | 4 ++--
> .../selftests/bpf/prog_tests/xdp_noinline.c | 4 ++--
> tools/testing/selftests/bpf/test_progs.c | 16 +---------------
> tools/testing/selftests/bpf/test_progs.h | 10 ++++------
> 10 files changed, 22 insertions(+), 38 deletions(-)
>
> diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c b/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c
> index b4be96162ff4..3548ba2f24a8 100644
> --- a/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c
> +++ b/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c
> @@ -5,13 +5,13 @@ static int libbpf_debug_print(enum libbpf_print_level level,
> const char *format, va_list args)
> {
> if (level != LIBBPF_DEBUG) {
> - test__vprintf(format, args);
> + vprintf(format, args);
> return 0;
> }
>
> if (!strstr(format, "verifier log"))
> return 0;
> - test__vprintf("%s", args);
> + vprintf("%s", args);
> return 0;
> }
>
> diff --git a/tools/testing/selftests/bpf/prog_tests/l4lb_all.c b/tools/testing/selftests/bpf/prog_tests/l4lb_all.c
> index 5ce572c03a5f..20ddca830e68 100644
> --- a/tools/testing/selftests/bpf/prog_tests/l4lb_all.c
> +++ b/tools/testing/selftests/bpf/prog_tests/l4lb_all.c
> @@ -74,7 +74,7 @@ static void test_l4lb(const char *file)
> }
> if (bytes != MAGIC_BYTES * NUM_ITER * 2 || pkts != NUM_ITER * 2) {
> error_cnt++;
> - test__printf("test_l4lb:FAIL:stats %lld %lld\n", bytes, pkts);
> + printf("test_l4lb:FAIL:stats %lld %lld\n", bytes, pkts);
> }
> out:
> bpf_object__close(obj);
> diff --git a/tools/testing/selftests/bpf/prog_tests/map_lock.c b/tools/testing/selftests/bpf/prog_tests/map_lock.c
> index 2e78217ed3fd..ee99368c595c 100644
> --- a/tools/testing/selftests/bpf/prog_tests/map_lock.c
> +++ b/tools/testing/selftests/bpf/prog_tests/map_lock.c
> @@ -9,12 +9,12 @@ static void *parallel_map_access(void *arg)
> for (i = 0; i < 10000; i++) {
> err = bpf_map_lookup_elem_flags(map_fd, &key, vars, BPF_F_LOCK);
> if (err) {
> - test__printf("lookup failed\n");
> + printf("lookup failed\n");
> error_cnt++;
> goto out;
> }
> if (vars[0] != 0) {
> - test__printf("lookup #%d var[0]=%d\n", i, vars[0]);
> + printf("lookup #%d var[0]=%d\n", i, vars[0]);
> error_cnt++;
> goto out;
> }
> @@ -22,8 +22,8 @@ static void *parallel_map_access(void *arg)
> for (j = 2; j < 17; j++) {
> if (vars[j] == rnd)
> continue;
> - test__printf("lookup #%d var[1]=%d var[%d]=%d\n",
> - i, rnd, j, vars[j]);
> + printf("lookup #%d var[1]=%d var[%d]=%d\n",
> + i, rnd, j, vars[j]);
> error_cnt++;
> goto out;
> }
> @@ -43,7 +43,7 @@ void test_map_lock(void)
>
> err = bpf_prog_load(file, BPF_PROG_TYPE_CGROUP_SKB, &obj, &prog_fd);
> if (err) {
> - test__printf("test_map_lock:bpf_prog_load errno %d\n", errno);
> + printf("test_map_lock:bpf_prog_load errno %d\n", errno);
> goto close_prog;
> }
> map_fd[0] = bpf_find_map(__func__, obj, "hash_map");
> diff --git a/tools/testing/selftests/bpf/prog_tests/send_signal.c b/tools/testing/selftests/bpf/prog_tests/send_signal.c
> index 461b423d0584..1575f0a1f586 100644
> --- a/tools/testing/selftests/bpf/prog_tests/send_signal.c
> +++ b/tools/testing/selftests/bpf/prog_tests/send_signal.c
> @@ -202,8 +202,8 @@ static int test_send_signal_nmi(void)
> -1 /* cpu */, -1 /* group_fd */, 0 /* flags */);
> if (pmu_fd == -1) {
> if (errno == ENOENT) {
> - test__printf("%s:SKIP:no PERF_COUNT_HW_CPU_CYCLES\n",
> - __func__);
> + printf("%s:SKIP:no PERF_COUNT_HW_CPU_CYCLES\n",
> + __func__);
> return 0;
> }
> /* Let the test fail with a more informative message */
> diff --git a/tools/testing/selftests/bpf/prog_tests/spinlock.c b/tools/testing/selftests/bpf/prog_tests/spinlock.c
> index deb2db5b85b0..114ebe6a438e 100644
> --- a/tools/testing/selftests/bpf/prog_tests/spinlock.c
> +++ b/tools/testing/selftests/bpf/prog_tests/spinlock.c
> @@ -12,7 +12,7 @@ void test_spinlock(void)
>
> err = bpf_prog_load(file, BPF_PROG_TYPE_CGROUP_SKB, &obj, &prog_fd);
> if (err) {
> - test__printf("test_spin_lock:bpf_prog_load errno %d\n", errno);
> + printf("test_spin_lock:bpf_prog_load errno %d\n", errno);
> goto close_prog;
> }
> for (i = 0; i < 4; i++)
> diff --git a/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id.c b/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id.c
> index 356d2c017a9c..ac44fda84833 100644
> --- a/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id.c
> +++ b/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id.c
> @@ -109,8 +109,8 @@ void test_stacktrace_build_id(void)
> if (build_id_matches < 1 && retry--) {
> bpf_link__destroy(link);
> bpf_object__close(obj);
> - test__printf("%s:WARN:Didn't find expected build ID from the map, retrying\n",
> - __func__);
> + printf("%s:WARN:Didn't find expected build ID from the map, retrying\n",
> + __func__);
> goto retry;
> }
>
> diff --git a/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c b/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c
> index f44f2c159714..9557b7dfb782 100644
> --- a/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c
> +++ b/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c
> @@ -140,8 +140,8 @@ void test_stacktrace_build_id_nmi(void)
> if (build_id_matches < 1 && retry--) {
> bpf_link__destroy(link);
> bpf_object__close(obj);
> - test__printf("%s:WARN:Didn't find expected build ID from the map, retrying\n",
> - __func__);
> + printf("%s:WARN:Didn't find expected build ID from the map, retrying\n",
> + __func__);
> goto retry;
> }
>
> diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_noinline.c b/tools/testing/selftests/bpf/prog_tests/xdp_noinline.c
> index b5404494b8aa..15f7c272edb0 100644
> --- a/tools/testing/selftests/bpf/prog_tests/xdp_noinline.c
> +++ b/tools/testing/selftests/bpf/prog_tests/xdp_noinline.c
> @@ -75,8 +75,8 @@ void test_xdp_noinline(void)
> }
> if (bytes != MAGIC_BYTES * NUM_ITER * 2 || pkts != NUM_ITER * 2) {
> error_cnt++;
> - test__printf("test_xdp_noinline:FAIL:stats %lld %lld\n",
> - bytes, pkts);
> + printf("test_xdp_noinline:FAIL:stats %lld %lld\n",
> + bytes, pkts);
> }
> out:
> bpf_object__close(obj);
> diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c
> index 00d1565d01a3..71c717162ac8 100644
> --- a/tools/testing/selftests/bpf/test_progs.c
> +++ b/tools/testing/selftests/bpf/test_progs.c
> @@ -106,20 +106,6 @@ void test__force_log() {
> env.test->force_log = true;
> }
>
> -void test__vprintf(const char *fmt, va_list args)
> -{
> - vprintf(fmt, args);
> -}
> -
> -void test__printf(const char *fmt, ...)
> -{
> - va_list args;
> -
> - va_start(args, fmt);
> - test__vprintf(fmt, args);
> - va_end(args);
> -}
> -
> struct ipv4_packet pkt_v4 = {
> .eth.h_proto = __bpf_constant_htons(ETH_P_IP),
> .iph.ihl = 5,
> @@ -311,7 +297,7 @@ static int libbpf_print_fn(enum libbpf_print_level level,
> {
> if (!env.very_verbose && level == LIBBPF_DEBUG)
> return 0;
> - test__vprintf(format, args);
> + vprintf(format, args);
> return 0;
> }
>
> diff --git a/tools/testing/selftests/bpf/test_progs.h b/tools/testing/selftests/bpf/test_progs.h
> index 9fd89078494f..cf0486dbb9b4 100644
> --- a/tools/testing/selftests/bpf/test_progs.h
> +++ b/tools/testing/selftests/bpf/test_progs.h
> @@ -69,8 +69,6 @@ extern int error_cnt;
> extern int pass_cnt;
> extern struct test_env env;
>
> -extern void test__printf(const char *fmt, ...);
> -extern void test__vprintf(const char *fmt, va_list args);
> extern void test__force_log();
> extern bool test__start_subtest(const char *name);
>
> @@ -96,12 +94,12 @@ extern struct ipv6_packet pkt_v6;
> int __ret = !!(condition); \
> if (__ret) { \
> error_cnt++; \
> - test__printf("%s:FAIL:%s ", __func__, tag); \
> - test__printf(format); \
> + printf("%s:FAIL:%s ", __func__, tag); \
> + printf(format); \
> } else { \
> pass_cnt++; \
> - test__printf("%s:PASS:%s %d nsec\n", \
> - __func__, tag, duration); \
> + printf("%s:PASS:%s %d nsec\n", \
> + __func__, tag, duration); \
> } \
> __ret; \
> })
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