log: Disable the syslog driver by default

This driver interferes with other sandbox tests since it causes log output
to be interspersed with "No ethernet found." messages. Disable this driver
by default.

Enable it for the syslog tests so that they still pass.

Signed-off-by: Simon Glass <sjg@chromium.org>

common/log_syslog.c

@@ -107,5 +107,4 @@ out:
 LOG_DRIVER(syslog) = {
 	.name	= "syslog",
 	.emit	= log_syslog_emit,
-	.flags	= LOGDF_ENABLE,
 };

test/log/syslog_test.c

@@ -56,6 +56,20 @@ int sb_log_tx_handler(struct udevice *dev, void *packet, unsigned int len)
 	return 0;
 }
 
+int syslog_test_setup(struct unit_test_state *uts)
+{
+	ut_assertok(log_device_set_enable(LOG_GET_DRIVER(syslog), true));
+
+	return 0;
+}
+
+int syslog_test_finish(struct unit_test_state *uts)
+{
+	ut_assertok(log_device_set_enable(LOG_GET_DRIVER(syslog), false));
+
+	return 0;
+}
+
 /**
  * log_test_syslog_err() - test log_err() function
  *
@@ -67,6 +81,7 @@ static int log_test_syslog_err(struct unit_test_state *uts)
 	int old_log_level = gd->default_log_level;
 	struct sb_log_env env;
 
+	ut_assertok(syslog_test_setup(uts));
 	gd->log_fmt = LOGF_TEST;
 	gd->default_log_level = LOGL_INFO;
 	env_set("ethact", "eth@10002000");
@@ -82,6 +97,7 @@ static int log_test_syslog_err(struct unit_test_state *uts)
 	sandbox_eth_set_tx_handler(0, NULL);
 	gd->default_log_level = old_log_level;
 	gd->log_fmt = log_get_default_format();
+	ut_assertok(syslog_test_finish(uts));
 
 	return 0;
 }
@@ -98,6 +114,7 @@ static int log_test_syslog_warning(struct unit_test_state *uts)
 	int old_log_level = gd->default_log_level;
 	struct sb_log_env env;
 
+	ut_assertok(syslog_test_setup(uts));
 	gd->log_fmt = LOGF_TEST;
 	gd->default_log_level = LOGL_INFO;
 	env_set("ethact", "eth@10002000");
@@ -114,6 +131,7 @@ static int log_test_syslog_warning(struct unit_test_state *uts)
 	ut_assertnull(env.expected);
 	gd->default_log_level = old_log_level;
 	gd->log_fmt = log_get_default_format();
+	ut_assertok(syslog_test_finish(uts));
 
 	return 0;
 }
@@ -130,6 +148,7 @@ static int log_test_syslog_notice(struct unit_test_state *uts)
 	int old_log_level = gd->default_log_level;
 	struct sb_log_env env;
 
+	ut_assertok(syslog_test_setup(uts));
 	gd->log_fmt = LOGF_TEST;
 	gd->default_log_level = LOGL_INFO;
 	env_set("ethact", "eth@10002000");
@@ -146,6 +165,7 @@ static int log_test_syslog_notice(struct unit_test_state *uts)
 	ut_assertnull(env.expected);
 	gd->default_log_level = old_log_level;
 	gd->log_fmt = log_get_default_format();
+	ut_assertok(syslog_test_finish(uts));
 
 	return 0;
 }
@@ -162,6 +182,7 @@ static int log_test_syslog_info(struct unit_test_state *uts)
 	int old_log_level = gd->default_log_level;
 	struct sb_log_env env;
 
+	ut_assertok(syslog_test_setup(uts));
 	gd->log_fmt = LOGF_TEST;
 	gd->default_log_level = LOGL_INFO;
 	env_set("ethact", "eth@10002000");
@@ -178,6 +199,7 @@ static int log_test_syslog_info(struct unit_test_state *uts)
 	ut_assertnull(env.expected);
 	gd->default_log_level = old_log_level;
 	gd->log_fmt = log_get_default_format();
+	ut_assertok(syslog_test_finish(uts));
 
 	return 0;
 }
@@ -194,6 +216,7 @@ static int log_test_syslog_debug(struct unit_test_state *uts)
 	int old_log_level = gd->default_log_level;
 	struct sb_log_env env;
 
+	ut_assertok(syslog_test_setup(uts));
 	gd->log_fmt = LOGF_TEST;
 	gd->default_log_level = LOGL_DEBUG;
 	env_set("ethact", "eth@10002000");
@@ -210,6 +233,7 @@ static int log_test_syslog_debug(struct unit_test_state *uts)
 	ut_assertnull(env.expected);
 	gd->default_log_level = old_log_level;
 	gd->log_fmt = log_get_default_format();
+	ut_assertok(syslog_test_finish(uts));
 
 	return 0;
 }

test/log/syslog_test.h

@@ -47,4 +47,20 @@ struct sb_log_env {
  */
 int sb_log_tx_handler(struct udevice *dev, void *packet, unsigned int len);
 
+/**
+ * syslog_test_setup() - Enable syslog logging ready for tests
+ *
+ * @uts: Test state
+ * @return 0 if OK, -ENOENT if the syslog log driver is not found
+ */
+int syslog_test_setup(struct unit_test_state *uts);
+
+/**
+ * syslog_test_finish() - Disable syslog logging after tests
+ *
+ * @uts: Test state
+ * @return 0 if OK, -ENOENT if the syslog log driver is not found
+ */
+int syslog_test_finish(struct unit_test_state *uts);
+
 #endif

test/log/syslog_test_ndebug.c

@@ -33,6 +33,7 @@ static int log_test_syslog_nodebug(struct unit_test_state *uts)
 	int old_log_level = gd->default_log_level;
 	struct sb_log_env env;
 
+	ut_assertok(syslog_test_setup(uts));
 	gd->log_fmt = LOGF_TEST;
 	gd->default_log_level = LOGL_INFO;
 	env_set("ethact", "eth@10002000");
@@ -49,6 +50,7 @@ static int log_test_syslog_nodebug(struct unit_test_state *uts)
 	ut_assertnonnull(env.expected);
 	gd->default_log_level = old_log_level;
 	gd->log_fmt = log_get_default_format();
+	ut_assertok(syslog_test_finish(uts));
 
 	return 0;
 }