kselftest/alsa: Report failures to set the requested sample rate as skips

If constraint selection gives us a sample rate other than the one that we
asked for that isn't a failure, that is the device implementing sample
rate constraints and advertising that it can't support whatever we asked
for. Report such cases as a test skip rather than failure so we don't have
false positives.

Signed-off-by: Mark Brown <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Takashi Iwai <[e-mail]>

tools/testing/selftests/alsa/pcm-test.c

···
 	bool pass = false, automatic = true;
 	snd_pcm_hw_params_t *hw_params;
 	snd_pcm_sw_params_t *sw_params;
+	bool skip = false;
 
 	snd_pcm_hw_params_alloca(&hw_params);
 	snd_pcm_sw_params_alloca(&sw_params);
···
 		goto __close;
 	}
 	if (rrate != rate) {
-		snprintf(msg, sizeof(msg), "rate mismatch %ld != %ld", rate, rrate);
+		snprintf(msg, sizeof(msg), "rate unsupported %ld != %ld", rate, rrate);
+		skip = true;
 		goto __close;
 	}
 	rperiod_size = period_size;
···
 	msg[0] = '\0';
 	pass = true;
 __close:
-	ksft_test_result(pass, "%s.%d.%d.%d.%s%s%s\n",
-			 test->cfg_prefix,
-			 data->card, data->device, data->subdevice,
-			 snd_pcm_stream_name(data->stream),
-			 msg[0] ? " " : "", msg);
+	if (!skip) {
+		ksft_test_result(pass, "%s.%d.%d.%d.%s%s%s\n",
+				 test->cfg_prefix,
+				 data->card, data->device, data->subdevice,
+				 snd_pcm_stream_name(data->stream),
+				 msg[0] ? " " : "", msg);
+	} else {
+		ksft_test_result_skip("%s.%d.%d.%d.%s%s%s\n",
+				      test->cfg_prefix,
+				      data->card, data->device,
+				      data->subdevice,
+				      snd_pcm_stream_name(data->stream),
+				      msg[0] ? " " : "", msg);
+	}
 	free(samples);
 	if (handle)
 		snd_pcm_close(handle);