diff mbox series

[bpf-next,2/3] selftests/bpf: Check ASSERT_OK(err) in dummy_st_ops

Message ID 21fbc0db764656805340085ef2a77c8a770ef1d0.1720521482.git.tanggeliang@kylinos.cn (mailing list archive)
State Superseded
Delegated to: BPF
Headers show
Series BPF selftests misc fixes | expand

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Commit Message

Geliang Tang July 9, 2024, 10:45 a.m. UTC 
From: Geliang Tang <tanggeliang@kylinos.cn>

Run dummy_st_ops selftests (./test_progs -t dummy_st_ops) on a Loongarch
platform, some "unexpected arg" errors occur:

'''
 #78/1    dummy_st_ops/dummy_st_ops_attach:OK
 test_dummy_init_ret_value:FAIL:test_ret unexpected test_ret: \
				actual 0 != expected 4076074229
 #78/2    dummy_st_ops/dummy_init_ret_value:FAIL
 #78/3    dummy_st_ops/dummy_init_ptr_arg:SKIP
 test_dummy_multiple_args:FAIL:arg 0 unexpected arg 0: \
				actual 0 != expected 7
 test_dummy_multiple_args:FAIL:arg 1 unexpected arg 1: \
				actual 0 != expected -100
 test_dummy_multiple_args:FAIL:arg 2 unexpected arg 2: \
				actual 0 != expected 35423
 test_dummy_multiple_args:FAIL:arg 3 unexpected arg 3: \
				actual 0 != expected 99
 test_dummy_multiple_args:FAIL:arg 4 unexpected arg 4: \
				actual 0 != expected 1311768467139281697
 #78/4    dummy_st_ops/dummy_multiple_args:FAIL
 #78/5    dummy_st_ops/dummy_sleepable:SKIP
 #78/6    dummy_st_ops/dummy_sleepable_reject_null:OK
 #78/7    dummy_st_ops/test_unsupported_field_sleepable:OK
 #78      dummy_st_ops:FAIL
'''

This is because BPF trampoline is not implemented on Loongarch yet,
bpf_prog_test_run_opts() returns ENOTSUPP.

This patch checks the return values of bpf_prog_test_run_opts() in
dummy_st_ops to fix these errors. If error returned, goto the newly
added label "out" to destroy the skel.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

Comments

Alan Maguire July 10, 2024, 2:01 p.m. UTC | #1 
On 09/07/2024 11:45, Geliang Tang wrote:
> From: Geliang Tang <tanggeliang@kylinos.cn>
> 
> Run dummy_st_ops selftests (./test_progs -t dummy_st_ops) on a Loongarch
> platform, some "unexpected arg" errors occur:
> 
> '''
>  #78/1    dummy_st_ops/dummy_st_ops_attach:OK
>  test_dummy_init_ret_value:FAIL:test_ret unexpected test_ret: \
> 				actual 0 != expected 4076074229
>  #78/2    dummy_st_ops/dummy_init_ret_value:FAIL
>  #78/3    dummy_st_ops/dummy_init_ptr_arg:SKIP
>  test_dummy_multiple_args:FAIL:arg 0 unexpected arg 0: \
> 				actual 0 != expected 7
>  test_dummy_multiple_args:FAIL:arg 1 unexpected arg 1: \
> 				actual 0 != expected -100
>  test_dummy_multiple_args:FAIL:arg 2 unexpected arg 2: \
> 				actual 0 != expected 35423
>  test_dummy_multiple_args:FAIL:arg 3 unexpected arg 3: \
> 				actual 0 != expected 99
>  test_dummy_multiple_args:FAIL:arg 4 unexpected arg 4: \
> 				actual 0 != expected 1311768467139281697
>  #78/4    dummy_st_ops/dummy_multiple_args:FAIL
>  #78/5    dummy_st_ops/dummy_sleepable:SKIP
>  #78/6    dummy_st_ops/dummy_sleepable_reject_null:OK
>  #78/7    dummy_st_ops/test_unsupported_field_sleepable:OK
>  #78      dummy_st_ops:FAIL
> '''
> 
> This is because BPF trampoline is not implemented on Loongarch yet,
> bpf_prog_test_run_opts() returns ENOTSUPP.
> 
> This patch checks the return values of bpf_prog_test_run_opts() in
> dummy_st_ops to fix these errors. If error returned, goto the newly
> added label "out" to destroy the skel.
> 
> Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>

Reviewed-by: Alan Maguire <alan.maguire@oracle.com>

Verified the test still passes on x86_64 too, so feel free to add

Tested-by: Alan Maguire <alan.maguire@oracle.com>

> ---
>  tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c b/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c
> index d3d94596ab79..a208801f524f 100644
> --- a/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c
> +++ b/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c
> @@ -41,9 +41,11 @@ static void test_dummy_init_ret_value(void)
>  
>  	fd = bpf_program__fd(skel->progs.test_1);
>  	err = bpf_prog_test_run_opts(fd, &attr);
> -	ASSERT_OK(err, "test_run");
> +	if (!ASSERT_OK(err, "test_run"))
> +		goto out;
>  	ASSERT_EQ(attr.retval, 0xf2f3f4f5, "test_ret");
>  
> +out:
>  	dummy_st_ops_success__destroy(skel);
>  }
>  
> @@ -115,13 +117,15 @@ static void test_dummy_multiple_args(void)
>  
>  	fd = bpf_program__fd(skel->progs.test_2);
>  	err = bpf_prog_test_run_opts(fd, &attr);
> -	ASSERT_OK(err, "test_run");
> +	if (!ASSERT_OK(err, "test_run"))
> +		goto out;
>  	args[0] = 7;
>  	for (i = 0; i < ARRAY_SIZE(args); i++) {
>  		snprintf(name, sizeof(name), "arg %zu", i);
>  		ASSERT_EQ(skel->bss->test_2_args[i], args[i], name);
>  	}
>  
> +out:
>  	dummy_st_ops_success__destroy(skel);
>  }
>
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c b/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c
index d3d94596ab79..a208801f524f 100644
--- a/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c
+++ b/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c
@@ -41,9 +41,11 @@  static void test_dummy_init_ret_value(void)
 
 	fd = bpf_program__fd(skel->progs.test_1);
 	err = bpf_prog_test_run_opts(fd, &attr);
-	ASSERT_OK(err, "test_run");
+	if (!ASSERT_OK(err, "test_run"))
+		goto out;
 	ASSERT_EQ(attr.retval, 0xf2f3f4f5, "test_ret");
 
+out:
 	dummy_st_ops_success__destroy(skel);
 }
 
@@ -115,13 +117,15 @@  static void test_dummy_multiple_args(void)
 
 	fd = bpf_program__fd(skel->progs.test_2);
 	err = bpf_prog_test_run_opts(fd, &attr);
-	ASSERT_OK(err, "test_run");
+	if (!ASSERT_OK(err, "test_run"))
+		goto out;
 	args[0] = 7;
 	for (i = 0; i < ARRAY_SIZE(args); i++) {
 		snprintf(name, sizeof(name), "arg %zu", i);
 		ASSERT_EQ(skel->bss->test_2_args[i], args[i], name);
 	}
 
+out:
 	dummy_st_ops_success__destroy(skel);
 }