diff --git a/components/driver/dac_common.c b/components/driver/dac_common.c
index 791926b0fc..9ccf89ada2 100644
--- a/components/driver/dac_common.c
+++ b/components/driver/dac_common.c
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2019-2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2019-2022 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -19,7 +19,7 @@
 
 extern portMUX_TYPE rtc_spinlock; //TODO: Will be placed in the appropriate position after the rtc module is finished.
 
-static const char *TAG = "DAC";
+static __attribute__((unused)) const char *TAG = "DAC";
 
 /*---------------------------------------------------------------
                     DAC
diff --git a/components/driver/esp32/touch_sensor.c b/components/driver/esp32/touch_sensor.c
index b7781a4780..3b0a8f95a9 100644
--- a/components/driver/esp32/touch_sensor.c
+++ b/components/driver/esp32/touch_sensor.c
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2016-2022 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -49,7 +49,7 @@ static SemaphoreHandle_t rtc_touch_mux = NULL;
 #define TOUCH_PAD_SHIFT_DEFAULT           (4)   // Increase computing accuracy.
 #define TOUCH_PAD_SHIFT_ROUND_DEFAULT     (8)   // ROUND = 2^(n-1); rounding off for fractional.
 
-static const char *TOUCH_TAG = "TOUCH_SENSOR";
+static __attribute__((unused)) const char *TOUCH_TAG = "TOUCH_SENSOR";
 
 #define TOUCH_CHANNEL_CHECK(channel) ESP_RETURN_ON_FALSE(channel < SOC_TOUCH_SENSOR_NUM, ESP_ERR_INVALID_ARG, TOUCH_TAG,  "Touch channel error");
 #define TOUCH_NULL_POINTER_CHECK(p, name) ESP_RETURN_ON_FALSE((p), ESP_ERR_INVALID_ARG, TOUCH_TAG, "input param '"name"' is NULL")
diff --git a/components/driver/esp32s2/dac.c b/components/driver/esp32s2/dac.c
index 16f8742a90..a6815dfd79 100644
--- a/components/driver/esp32s2/dac.c
+++ b/components/driver/esp32s2/dac.c
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2019-2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2019-2022 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -18,7 +18,7 @@
 #include "soc/dac_periph.h"
 #include "hal/dac_hal.h"
 
-static const char *TAG = "DAC";
+static __attribute__((unused)) const char *TAG = "DAC";
 
 extern portMUX_TYPE rtc_spinlock; //TODO: Will be placed in the appropriate position after the rtc module is finished.
 #define DAC_ENTER_CRITICAL()  portENTER_CRITICAL(&rtc_spinlock)
diff --git a/components/driver/esp32s2/touch_sensor.c b/components/driver/esp32s2/touch_sensor.c
index 5b6203c9e4..4cf4f639d6 100644
--- a/components/driver/esp32s2/touch_sensor.c
+++ b/components/driver/esp32s2/touch_sensor.c
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2016-2022 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -36,7 +36,7 @@
 #define TOUCH_PAD_SHIFT_ROUND_DEFAULT     (8)   // ROUND = 2^(n-1); rounding off for fractional.
 #define TOUCH_PAD_MEASURE_WAIT_DEFAULT  (0xFF)  // The timer frequency is 8Mhz, the max value is 0xff
 
-static const char *TOUCH_TAG = "TOUCH_SENSOR";
+static __attribute__((unused)) const char *TOUCH_TAG = "TOUCH_SENSOR";
 
 #define TOUCH_CHANNEL_CHECK(channel) do { \
         ESP_RETURN_ON_FALSE(channel < SOC_TOUCH_SENSOR_NUM && channel >= 0, ESP_ERR_INVALID_ARG, TOUCH_TAG,  "Touch channel error"); \
diff --git a/components/driver/esp32s3/touch_sensor.c b/components/driver/esp32s3/touch_sensor.c
index c120a1c580..3b1aebaac7 100644
--- a/components/driver/esp32s3/touch_sensor.c
+++ b/components/driver/esp32s3/touch_sensor.c
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2016-2022 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -36,7 +36,7 @@
 #define TOUCH_PAD_SHIFT_ROUND_DEFAULT     (8)   // ROUND = 2^(n-1); rounding off for fractional.
 #define TOUCH_PAD_MEASURE_WAIT_DEFAULT  (0xFF)  // The timer frequency is 8Mhz, the max value is 0xff
 
-static const char *TOUCH_TAG = "TOUCH_SENSOR";
+static __attribute__((unused)) const char *TOUCH_TAG = "TOUCH_SENSOR";
 
 #define TOUCH_CHANNEL_CHECK(channel) do { \
         ESP_RETURN_ON_FALSE(channel < SOC_TOUCH_SENSOR_NUM && channel >= 0, ESP_ERR_INVALID_ARG, TOUCH_TAG,  "Touch channel error"); \
diff --git a/components/driver/ledc.c b/components/driver/ledc.c
index 91f57ec05a..5c69bddb58 100644
--- a/components/driver/ledc.c
+++ b/components/driver/ledc.c
@@ -21,7 +21,7 @@
 #include "soc/clk_ctrl_os.h"
 #include "esp_private/periph_ctrl.h"
 
-static const char *LEDC_TAG = "ledc";
+static __attribute__((unused)) const char *LEDC_TAG = "ledc";
 
 #define LEDC_CHECK(a, str, ret_val) ESP_RETURN_ON_FALSE(a, ret_val, LEDC_TAG, "%s", str)
 #define LEDC_ARG_CHECK(a, param) ESP_RETURN_ON_FALSE(a, ESP_ERR_INVALID_ARG, LEDC_TAG, param " argument is invalid")
@@ -66,9 +66,9 @@ static portMUX_TYPE ledc_spinlock = portMUX_INITIALIZER_UNLOCKED;
 #define DIM(array)                (sizeof(array)/sizeof(*array))
 #define LEDC_IS_DIV_INVALID(div)  ((div) <= LEDC_LL_FRACTIONAL_MAX || (div) > LEDC_TIMER_DIV_NUM_MAX)
 
-static const char *LEDC_NOT_INIT = "LEDC is not initialized";
-static const char *LEDC_FADE_SERVICE_ERR_STR = "LEDC fade service not installed";
-static const char *LEDC_FADE_INIT_ERROR_STR = "LEDC fade channel init error, not enough memory or service not installed";
+static __attribute__((unused)) const char *LEDC_NOT_INIT = "LEDC is not initialized";
+static __attribute__((unused)) const char *LEDC_FADE_SERVICE_ERR_STR = "LEDC fade service not installed";
+static __attribute__((unused)) const char *LEDC_FADE_INIT_ERROR_STR = "LEDC fade channel init error, not enough memory or service not installed";
 
 //This value will be calibrated when in use.
 static uint32_t s_ledc_slow_clk_8M = 0;
diff --git a/components/driver/test_apps/gptimer/CMakeLists.txt b/components/driver/test_apps/gptimer/CMakeLists.txt
index 897e67221c..9b8072e4cc 100644
--- a/components/driver/test_apps/gptimer/CMakeLists.txt
+++ b/components/driver/test_apps/gptimer/CMakeLists.txt
@@ -4,7 +4,7 @@ cmake_minimum_required(VERSION 3.5)
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(gptimer_test)
 
-if(CONFIG_GPTIMER_ISR_IRAM_SAFE)
+if(CONFIG_COMPILER_DUMP_RTL_FILES)
     add_custom_target(check_test_app_sections ALL
                       COMMAND ${PYTHON} $ENV{IDF_PATH}/tools/ci/check_callgraph.py
                       --rtl-dir ${CMAKE_BINARY_DIR}/esp-idf/driver/
diff --git a/components/driver/test_apps/gptimer/sdkconfig.ci.iram_safe b/components/driver/test_apps/gptimer/sdkconfig.ci.iram_safe
index 3979b28af4..5dbcade839 100644
--- a/components/driver/test_apps/gptimer/sdkconfig.ci.iram_safe
+++ b/components/driver/test_apps/gptimer/sdkconfig.ci.iram_safe
@@ -1,5 +1,5 @@
 CONFIG_COMPILER_DUMP_RTL_FILES=y
 CONFIG_GPTIMER_CTRL_FUNC_IN_IRAM=y
 CONFIG_GPTIMER_ISR_IRAM_SAFE=y
-# disable log as most of log access rodata string on error, causing RTL check failure
-CONFIG_LOG_DEFAULT_LEVEL_NONE=y
+# silent the error check, as the error string are stored in rodata, causing RTL check failure
+CONFIG_COMPILER_OPTIMIZATION_CHECKS_SILENT=y
diff --git a/components/esp_adc_cal/esp_adc_cal_common.c b/components/esp_adc_cal/esp_adc_cal_common.c
index 809c001625..0835656ca1 100644
--- a/components/esp_adc_cal/esp_adc_cal_common.c
+++ b/components/esp_adc_cal/esp_adc_cal_common.c
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -14,7 +14,7 @@
 #include "hal/adc_types.h"
 #include "esp_adc_cal.h"
 
-const static char *TAG = "ADC_CALI";
+const __attribute__((unused)) static char *TAG = "ADC_CALI";
 
 esp_err_t esp_adc_cal_get_voltage(adc_channel_t channel,
                                   const esp_adc_cal_characteristics_t *chars,
diff --git a/components/esp_hw_support/esp_async_memcpy.c b/components/esp_hw_support/esp_async_memcpy.c
index dda8c6cca9..6b245f2d7e 100644
--- a/components/esp_hw_support/esp_async_memcpy.c
+++ b/components/esp_hw_support/esp_async_memcpy.c
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -88,6 +88,8 @@ esp_err_t esp_async_memcpy_install(const async_memcpy_config_t *config, async_me
     ret = async_memcpy_impl_init(&mcp_hdl->mcp_impl);
     ESP_GOTO_ON_ERROR(ret, err, TAG, "DMA M2M init failed");
 
+    ESP_LOGD(TAG, "installed memory to memory copy channel at %p", mcp_hdl);
+
     *asmcp = mcp_hdl;
 
     async_memcpy_impl_start(&mcp_hdl->mcp_impl, (intptr_t)&mcp_hdl->out_streams[0].desc, (intptr_t)&mcp_hdl->in_streams[0].desc);
diff --git a/components/esp_lcd/src/esp_lcd_panel_io.c b/components/esp_lcd/src/esp_lcd_panel_io.c
index 1c45c65a0a..aabbd5f950 100644
--- a/components/esp_lcd/src/esp_lcd_panel_io.c
+++ b/components/esp_lcd/src/esp_lcd_panel_io.c
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -8,7 +8,7 @@
 #include "esp_lcd_panel_io.h"
 #include "esp_lcd_panel_io_interface.h"
 
-static const char *TAG = "lcd_panel.io";
+static __attribute__((unused)) const char *TAG = "lcd_panel.io";
 
 esp_err_t esp_lcd_panel_io_tx_param(esp_lcd_panel_io_handle_t io, int lcd_cmd, const void *param, size_t param_size)
 {
diff --git a/components/esp_lcd/src/esp_lcd_panel_ops.c b/components/esp_lcd/src/esp_lcd_panel_ops.c
index aae00a82b3..d077fdeae8 100644
--- a/components/esp_lcd/src/esp_lcd_panel_ops.c
+++ b/components/esp_lcd/src/esp_lcd_panel_ops.c
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -8,7 +8,7 @@
 #include "esp_lcd_panel_ops.h"
 #include "esp_lcd_panel_interface.h"
 
-static const char *TAG = "lcd_panel";
+static __attribute__((unused)) const char *TAG = "lcd_panel";
 
 esp_err_t esp_lcd_panel_reset(esp_lcd_panel_handle_t panel)
 {