diff --git a/Sming/Arch/Esp32/Components/esp32/sdk/soc.mk b/Sming/Arch/Esp32/Components/esp32/sdk/soc.mk
index 0ac8702dd7..276e5f6138 100644
--- a/Sming/Arch/Esp32/Components/esp32/sdk/soc.mk
+++ b/Sming/Arch/Esp32/Components/esp32/sdk/soc.mk
@@ -3,8 +3,6 @@
 #
 
 ifeq (esp32,$(SMING_SOC))
-    # esp_dport_access_reg_read is added as an undefined symbol because otherwise
-    # the linker can ignore dport_access.c as it would no other files depending on any symbols in it.
 	SDK_UNDEF_SYMBOLS += \
 		esp_dport_access_reg_read
 endif