diff --git a/class/cdc/usbh_cdc_ecm.c b/class/cdc/usbh_cdc_ecm.c
index 9b015add..b115bcf8 100644
--- a/class/cdc/usbh_cdc_ecm.c
+++ b/class/cdc/usbh_cdc_ecm.c
@@ -232,7 +232,7 @@ void usbh_cdc_ecm_rx_thread(void *argument)
     int ret;
     err_t err;
     struct pbuf *p;
-#ifdef LWIP_TCPIP_CORE_LOCKING_INPUT
+#if LWIP_TCPIP_CORE_LOCKING_INPUT
     pbuf_type type = PBUF_ROM;
 #else
     pbuf_type type = PBUF_POOL;
@@ -271,7 +271,7 @@ find_class:
 
             p = pbuf_alloc(PBUF_RAW, g_cdc_ecm_rx_length, type);
             if (p != NULL) {
-#ifdef LWIP_TCPIP_CORE_LOCKING_INPUT
+#if LWIP_TCPIP_CORE_LOCKING_INPUT
                 p->payload = g_cdc_ecm_rx_buffer;
 #else
                 memcpy(p->payload, (uint8_t *)g_cdc_ecm_rx_buffer, g_cdc_ecm_rx_length);
diff --git a/class/cdc/usbh_cdc_ncm.c b/class/cdc/usbh_cdc_ncm.c
index efbac038..f8cc03f3 100644
--- a/class/cdc/usbh_cdc_ncm.c
+++ b/class/cdc/usbh_cdc_ncm.c
@@ -258,7 +258,7 @@ void usbh_cdc_ncm_rx_thread(void *argument)
     int ret;
     err_t err;
     struct pbuf *p;
-#ifdef LWIP_TCPIP_CORE_LOCKING_INPUT
+#if LWIP_TCPIP_CORE_LOCKING_INPUT
     pbuf_type type = PBUF_ROM;
 #else
     pbuf_type type = PBUF_POOL;
@@ -321,7 +321,7 @@ find_class:
 
                     p = pbuf_alloc(PBUF_RAW, ndp16_datagram->wDatagramLength, type);
                     if (p != NULL) {
-#ifdef LWIP_TCPIP_CORE_LOCKING_INPUT
+#if LWIP_TCPIP_CORE_LOCKING_INPUT
                         p->payload = (uint8_t *)&g_cdc_ncm_rx_buffer[ndp16_datagram->wDatagramIndex];
 #else
                         memcpy(p->payload, (uint8_t *)&g_cdc_ncm_rx_buffer[ndp16_datagram->wDatagramIndex], ndp16_datagram->wDatagramLength);
diff --git a/class/vendor/net/usbh_asix.c b/class/vendor/net/usbh_asix.c
index e6ec22e8..a820f4da 100644
--- a/class/vendor/net/usbh_asix.c
+++ b/class/vendor/net/usbh_asix.c
@@ -657,7 +657,7 @@ void usbh_asix_rx_thread(void *argument)
     uint16_t len;
     uint16_t len_crc;
     struct pbuf *p;
-#ifdef LWIP_TCPIP_CORE_LOCKING_INPUT
+#if LWIP_TCPIP_CORE_LOCKING_INPUT
     pbuf_type type = PBUF_ROM;
 #else
     pbuf_type type = PBUF_POOL;
@@ -704,7 +704,7 @@ find_class:
 
             p = pbuf_alloc(PBUF_RAW, len, type);
             if (p != NULL) {
-#ifdef LWIP_TCPIP_CORE_LOCKING_INPUT
+#if LWIP_TCPIP_CORE_LOCKING_INPUT
                 p->payload = (uint8_t *)&g_asix_rx_buffer[4];
 #else
                 memcpy(p->payload, (uint8_t *)&g_asix_rx_buffer[4], len);
diff --git a/class/vendor/net/usbh_rtl8152.c b/class/vendor/net/usbh_rtl8152.c
index 7ff103cb..3711c751 100644
--- a/class/vendor/net/usbh_rtl8152.c
+++ b/class/vendor/net/usbh_rtl8152.c
@@ -2133,7 +2133,7 @@ void usbh_rtl8152_rx_thread(void *argument)
     uint16_t len;
     uint16_t data_offset;
     struct pbuf *p;
-#ifdef LWIP_TCPIP_CORE_LOCKING_INPUT
+#if LWIP_TCPIP_CORE_LOCKING_INPUT
     pbuf_type type = PBUF_ROM;
 #else
     pbuf_type type = PBUF_POOL;
@@ -2190,7 +2190,7 @@ find_class:
 
                 p = pbuf_alloc(PBUF_RAW, len, type);
                 if (p != NULL) {
-#ifdef LWIP_TCPIP_CORE_LOCKING_INPUT
+#if LWIP_TCPIP_CORE_LOCKING_INPUT
                     p->payload = (uint8_t *)&g_rtl8152_rx_buffer[data_offset + sizeof(struct rx_desc)];
 #else
                     memcpy(p->payload, (uint8_t *)&g_rtl8152_rx_buffer[data_offset + sizeof(struct rx_desc)], len);
diff --git a/class/wireless/usbh_rndis.c b/class/wireless/usbh_rndis.c
index 3fa0250d..b1ca36cf 100644
--- a/class/wireless/usbh_rndis.c
+++ b/class/wireless/usbh_rndis.c
@@ -439,7 +439,7 @@ void usbh_rndis_rx_thread(void *argument)
     struct pbuf *p;
     rndis_data_packet_t *pmsg;
     rndis_data_packet_t temp;
-#ifdef LWIP_TCPIP_CORE_LOCKING_INPUT
+#if LWIP_TCPIP_CORE_LOCKING_INPUT
     pbuf_type type = PBUF_ROM;
 #else
     pbuf_type type = PBUF_POOL;
@@ -492,7 +492,7 @@ find_class:
                     p = pbuf_alloc(PBUF_RAW, pmsg->DataLength, type);
                     if (p != NULL) {
                         void *src = (void *)(g_rndis_rx_buffer + pmg_offset + sizeof(rndis_generic_msg_t) + pmsg->DataOffset);
-#ifdef LWIP_TCPIP_CORE_LOCKING_INPUT
+#if LWIP_TCPIP_CORE_LOCKING_INPUT
                         p->payload = src;
 #else
                         memcpy(p->payload, src, pmsg->DataLength);