diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c
index e754ffe2f8..c78fe40c72 100644
--- a/libavcodec/dsputil.c
+++ b/libavcodec/dsputil.c
@@ -359,8 +359,8 @@ static void diff_pixels_c(DCTELEM *restrict block, const uint8_t *s1,
 }
 
 
-void ff_put_pixels_clamped_c(const DCTELEM *block, uint8_t *restrict pixels,
-                             int line_size)
+static void put_pixels_clamped_c(const DCTELEM *block, uint8_t *restrict pixels,
+                                 int line_size)
 {
     int i;
 
@@ -380,9 +380,9 @@ void ff_put_pixels_clamped_c(const DCTELEM *block, uint8_t *restrict pixels,
     }
 }
 
-void ff_put_signed_pixels_clamped_c(const DCTELEM *block,
-                                    uint8_t *restrict pixels,
-                                    int line_size)
+static void put_signed_pixels_clamped_c(const DCTELEM *block,
+                                        uint8_t *restrict pixels,
+                                        int line_size)
 {
     int i, j;
 
@@ -401,8 +401,8 @@ void ff_put_signed_pixels_clamped_c(const DCTELEM *block,
     }
 }
 
-void ff_add_pixels_clamped_c(const DCTELEM *block, uint8_t *restrict pixels,
-                             int line_size)
+static void add_pixels_clamped_c(const DCTELEM *block, uint8_t *restrict pixels,
+                                 int line_size)
 {
     int i;
 
@@ -2606,22 +2606,22 @@ void ff_wmv2_idct_c(short * block){
 static void ff_wmv2_idct_put_c(uint8_t *dest, int line_size, DCTELEM *block)
 {
     ff_wmv2_idct_c(block);
-    ff_put_pixels_clamped_c(block, dest, line_size);
+    put_pixels_clamped_c(block, dest, line_size);
 }
 static void ff_wmv2_idct_add_c(uint8_t *dest, int line_size, DCTELEM *block)
 {
     ff_wmv2_idct_c(block);
-    ff_add_pixels_clamped_c(block, dest, line_size);
+    add_pixels_clamped_c(block, dest, line_size);
 }
 static void ff_jref_idct_put(uint8_t *dest, int line_size, DCTELEM *block)
 {
     ff_j_rev_dct (block);
-    ff_put_pixels_clamped_c(block, dest, line_size);
+    put_pixels_clamped_c(block, dest, line_size);
 }
 static void ff_jref_idct_add(uint8_t *dest, int line_size, DCTELEM *block)
 {
     ff_j_rev_dct (block);
-    ff_add_pixels_clamped_c(block, dest, line_size);
+    add_pixels_clamped_c(block, dest, line_size);
 }
 
 static void just_return(void *mem av_unused, int stride av_unused, int h av_unused) { return; }
@@ -2720,9 +2720,9 @@ av_cold void ff_dsputil_init(DSPContext* c, AVCodecContext *avctx)
     }
 
     c->diff_pixels = diff_pixels_c;
-    c->put_pixels_clamped = ff_put_pixels_clamped_c;
-    c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_c;
-    c->add_pixels_clamped = ff_add_pixels_clamped_c;
+    c->put_pixels_clamped = put_pixels_clamped_c;
+    c->put_signed_pixels_clamped = put_signed_pixels_clamped_c;
+    c->add_pixels_clamped = add_pixels_clamped_c;
     c->sum_abs_dctelem = sum_abs_dctelem_c;
     c->gmc1 = gmc1_c;
     c->gmc = ff_gmc_c;
diff --git a/libavcodec/dsputil.h b/libavcodec/dsputil.h
index e90c7cbd0f..e818fb092f 100644
--- a/libavcodec/dsputil.h
+++ b/libavcodec/dsputil.h
@@ -197,10 +197,6 @@ EMULATED_EDGE(8)
 EMULATED_EDGE(9)
 EMULATED_EDGE(10)
 
-void ff_add_pixels_clamped_c(const DCTELEM *block, uint8_t *dest, int linesize);
-void ff_put_pixels_clamped_c(const DCTELEM *block, uint8_t *dest, int linesize);
-void ff_put_signed_pixels_clamped_c(const DCTELEM *block, uint8_t *dest, int linesize);
-
 /**
  * DSPContext.
  */