diff --git a/include/exec/helper-gen.h b/include/exec/helper-gen.h
index 8239ffc77c04634c018013e21e847b6f9dfeced9..476acd9220b1a7ca88d6b4ab62db493eb45abecf 100644
--- a/include/exec/helper-gen.h
+++ b/include/exec/helper-gen.h
@@ -9,7 +9,7 @@
 #define DEF_HELPER_FLAGS_0(name, flags, ret)                            \
 static inline void glue(gen_helper_, name)(dh_retvar_decl0(ret))        \
 {                                                                       \
-  tcg_gen_callN(&tcg_ctx, HELPER(name), dh_retvar(ret), 0, NULL);       \
+  tcg_gen_callN(HELPER(name), dh_retvar(ret), 0, NULL);                 \
 }
 
 #define DEF_HELPER_FLAGS_1(name, flags, ret, t1)                        \
@@ -17,7 +17,7 @@ static inline void glue(gen_helper_, name)(dh_retvar_decl(ret)          \
     dh_arg_decl(t1, 1))                                                 \
 {                                                                       \
   TCGArg args[1] = { dh_arg(t1, 1) };                                   \
-  tcg_gen_callN(&tcg_ctx, HELPER(name), dh_retvar(ret), 1, args);       \
+  tcg_gen_callN(HELPER(name), dh_retvar(ret), 1, args);                 \
 }
 
 #define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2)                    \
@@ -25,7 +25,7 @@ static inline void glue(gen_helper_, name)(dh_retvar_decl(ret)          \
     dh_arg_decl(t1, 1), dh_arg_decl(t2, 2))                             \
 {                                                                       \
   TCGArg args[2] = { dh_arg(t1, 1), dh_arg(t2, 2) };                    \
-  tcg_gen_callN(&tcg_ctx, HELPER(name), dh_retvar(ret), 2, args);       \
+  tcg_gen_callN(HELPER(name), dh_retvar(ret), 2, args);                 \
 }
 
 #define DEF_HELPER_FLAGS_3(name, flags, ret, t1, t2, t3)                \
@@ -33,7 +33,7 @@ static inline void glue(gen_helper_, name)(dh_retvar_decl(ret)          \
     dh_arg_decl(t1, 1), dh_arg_decl(t2, 2), dh_arg_decl(t3, 3))         \
 {                                                                       \
   TCGArg args[3] = { dh_arg(t1, 1), dh_arg(t2, 2), dh_arg(t3, 3) };     \
-  tcg_gen_callN(&tcg_ctx, HELPER(name), dh_retvar(ret), 3, args);       \
+  tcg_gen_callN(HELPER(name), dh_retvar(ret), 3, args);                 \
 }
 
 #define DEF_HELPER_FLAGS_4(name, flags, ret, t1, t2, t3, t4)            \
@@ -43,7 +43,7 @@ static inline void glue(gen_helper_, name)(dh_retvar_decl(ret)          \
 {                                                                       \
   TCGArg args[4] = { dh_arg(t1, 1), dh_arg(t2, 2),                      \
                      dh_arg(t3, 3), dh_arg(t4, 4) };                    \
-  tcg_gen_callN(&tcg_ctx, HELPER(name), dh_retvar(ret), 4, args);       \
+  tcg_gen_callN(HELPER(name), dh_retvar(ret), 4, args);                 \
 }
 
 #define DEF_HELPER_FLAGS_5(name, flags, ret, t1, t2, t3, t4, t5)        \
@@ -53,7 +53,7 @@ static inline void glue(gen_helper_, name)(dh_retvar_decl(ret)          \
 {                                                                       \
   TCGArg args[5] = { dh_arg(t1, 1), dh_arg(t2, 2), dh_arg(t3, 3),       \
                      dh_arg(t4, 4), dh_arg(t5, 5) };                    \
-  tcg_gen_callN(&tcg_ctx, HELPER(name), dh_retvar(ret), 5, args);       \
+  tcg_gen_callN(HELPER(name), dh_retvar(ret), 5, args);                 \
 }
 
 #include "helper.h"
diff --git a/tcg/tcg.c b/tcg/tcg.c
index c10e73babed604effc3a8bb55a8325ddae3d774a..dac3e06a5babfcd699522c8e2f0c9a683ba7f729 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -974,9 +974,9 @@ bool tcg_op_supported(TCGOpcode op)
 /* Note: we convert the 64 bit args to 32 bit and do some alignment
    and endian swap. Maybe it would be better to do the alignment
    and endian swap in tcg_reg_alloc_call(). */
-void tcg_gen_callN(TCGContext *s, void *func, TCGArg ret,
-                   int nargs, TCGArg *args)
+void tcg_gen_callN(void *func, TCGArg ret, int nargs, TCGArg *args)
 {
+    TCGContext *s = &tcg_ctx;
     int i, real_args, nb_rets, pi;
     unsigned sizemask, flags;
     TCGHelperInfo *info;
diff --git a/tcg/tcg.h b/tcg/tcg.h
index 563e7d36aaea629c3f79dab7defd82a35911103a..0d61932301b51f89f46b088fa43798edb3ed36fc 100644
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -951,8 +951,7 @@ do {\
 
 bool tcg_op_supported(TCGOpcode op);
 
-void tcg_gen_callN(TCGContext *s, void *func,
-                   TCGArg ret, int nargs, TCGArg *args);
+void tcg_gen_callN(void *func, TCGArg ret, int nargs, TCGArg *args);
 
 void tcg_op_remove(TCGContext *s, TCGOp *op);
 TCGOp *tcg_op_insert_before(TCGContext *s, TCGOp *op, TCGOpcode opc, int narg);