diff --git a/ggml/src/ggml-sycl/common.hpp b/ggml/src/ggml-sycl/common.hpp
index afb9a1f0e..99b3296cd 100644
--- a/ggml/src/ggml-sycl/common.hpp
+++ b/ggml/src/ggml-sycl/common.hpp
@@ -48,11 +48,6 @@ static int g_ggml_sycl_debug = 0;
     }                                                                    \
   }()
 
-// #define DEBUG_SYCL_MALLOC
-
-static int g_work_group_size = -1;
-// typedef sycl::half ggml_fp16_t;
-
 #define __SYCL_ARCH__ DPCT_COMPATIBILITY_TEMP
 #define VER_4VEC 610 // todo for hardward optimize.
 #define VER_GEN9 700 // todo for hardward optimize.
@@ -168,8 +163,6 @@ int get_current_device_id();
   (void)bad_arch; // suppress unused function warning
 }
 
-int get_current_device_id();
-
 inline dpct::err0 ggml_sycl_set_device(const int device_id) try {
 
   int current_device_id;