diff --git a/net/lwip/src/core/memp.c b/net/lwip/src/core/memp.c
index dbbdc54443..9b907e284d 100644
--- a/net/lwip/src/core/memp.c
+++ b/net/lwip/src/core/memp.c
@@ -125,6 +125,14 @@ const u16_t memp_sizes[MEMP_MAX] = {
 #define LWIP_MEMPOOL(name,num,size,desc)  LWIP_MEM_ALIGN_SIZE(size),
 #include "lwip/memp_std.h"
 };
+
+/** This array holds a textual description of each pool. */
+#ifdef LWIP_DEBUG
+static const char *memp_desc[MEMP_MAX] = {
+#define LWIP_MEMPOOL(name,num,size,desc)  (desc),
+#include "lwip/memp_std.h"
+};
+#endif /* LWIP_DEBUG */
 
 #if !MEMP_MEM_MALLOC /* don't build if not configured for use in lwipopts.h */
 
@@ -134,14 +142,6 @@ static const u16_t memp_num[MEMP_MAX] = {
 #include "lwip/memp_std.h"
 };
 
-/** This array holds a textual description of each pool. */
-#ifdef LWIP_DEBUG
-static const char *memp_desc[MEMP_MAX] = {
-#define LWIP_MEMPOOL(name,num,size,desc)  (desc),
-#include "lwip/memp_std.h"
-};
-#endif /* LWIP_DEBUG */
-
 /** This is the actual memory used by the pools. */
 static u8_t memp_memory[MEM_ALIGNMENT - 1 
 #define LWIP_MEMPOOL(name,num,size,desc) + ( (num) * (MEMP_SIZE + MEMP_ALIGN_SIZE(size) ) )
@@ -347,8 +347,8 @@ memp_malloc_fn(memp_t type, const char* file, const int line)
 #else
   void* ptr;
   rt_uint32_t size;
-  SYS_ARCH_DECL_PROTECT(old_level);
-
+  SYS_ARCH_DECL_PROTECT(old_level);
+
   size = memp_sizes[type];
   LWIP_DEBUGF(MEMP_DEBUG, ("memp malloc %s, size %d, ", memp_desc[type], memp_sizes[type]));
 
@@ -366,8 +366,8 @@ memp_malloc_fn(memp_t type, const char* file, const int line)
       tcp_pcbs ++;
     }
   }
-  SYS_ARCH_UNPROTECT(old_level);
-
+  SYS_ARCH_UNPROTECT(old_level);
+
   ptr = mem_malloc(size);
   LWIP_DEBUGF(MEMP_DEBUG, ("mem 0x%x\n", ptr));
 
@@ -416,18 +416,18 @@ memp_free(memp_t type, void *mem)
 
   SYS_ARCH_UNPROTECT(old_level);
 #else
-  SYS_ARCH_DECL_PROTECT(old_level);
-
+  SYS_ARCH_DECL_PROTECT(old_level);
+
   SYS_ARCH_PROTECT(old_level);
   if (type == MEMP_TCP_PCB && mem)
   {
     tcp_pcbs --;
   }
-  SYS_ARCH_UNPROTECT(old_level);
-
+  SYS_ARCH_UNPROTECT(old_level);
+
   LWIP_DEBUGF(MEMP_DEBUG, ("memp free %s, mem 0x%x\n", memp_desc[type], mem));
   /* release this memory */
   mem_free(mem);
 #endif /* MEMP_MEM_MALLOC */
-}
-
+}
+