1 files changed, 0 insertions, 12 deletions
diff --git a/extmod/modlwip.c b/extmod/modlwip.c
index 26aab6e81..4b1c1b8f3 100644
--- a/extmod/modlwip.c
+++ b/extmod/modlwip.c
@@ -1725,18 +1725,6 @@ static MP_DEFINE_CONST_OBJ_TYPE(
     );
 
 /******************************************************************************/
-// Support functions for memory protection. lwIP has its own memory management
-// routines for its internal structures, and since they might be called in
-// interrupt handlers, they need some protection.
-sys_prot_t sys_arch_protect() {
-    return (sys_prot_t)MICROPY_BEGIN_ATOMIC_SECTION();
-}
-
-void sys_arch_unprotect(sys_prot_t state) {
-    MICROPY_END_ATOMIC_SECTION((mp_uint_t)state);
-}
-
-/******************************************************************************/
 // Polling callbacks for the interfaces connected to lwIP. Right now it calls
 // itself a "list" but isn't; we only support a single interface.