diff --git a/tests/checkasm/sw_rgb.c b/tests/checkasm/sw_rgb.c
index b98c7c6b47..6edfc93b0b 100644
--- a/tests/checkasm/sw_rgb.c
+++ b/tests/checkasm/sw_rgb.c
@@ -142,7 +142,7 @@ static void check_rgb24toyv12(SwsContext *sws)
 
     declare_func(void, const uint8_t *src, uint8_t *ydst, uint8_t *udst,
                        uint8_t *vdst, int width, int height, int lumStride,
-                       int chromStride, int srcStride, int32_t *rgb2yuv);
+                       int chromStride, int srcStride, const int32_t *rgb2yuv);
 
     randomize_buffers(src, BUFSIZE * 3);
 
diff --git a/tests/checkasm/sw_scale.c b/tests/checkasm/sw_scale.c
index 11c9174a6b..b91e0b64ed 100644
--- a/tests/checkasm/sw_scale.c
+++ b/tests/checkasm/sw_scale.c
@@ -362,7 +362,7 @@ static void check_hscale(void)
 
     // The dst parameter here is either int16_t or int32_t but we use void* to
     // just cover both cases.
-    declare_func(void, void *c, void *dst, int dstW,
+    declare_func(void, SwsInternal *c, int16_t *dst, int dstW,
                  const uint8_t *src, const int16_t *filter,
                  const int32_t *filterPos, int filterSize);
 
@@ -422,11 +422,11 @@ static void check_hscale(void)
                     memset(dst0, 0, SRC_PIXELS * sizeof(dst0[0]));
                     memset(dst1, 0, SRC_PIXELS * sizeof(dst1[0]));
 
-                    call_ref(NULL, dst0, sws->dst_w, src, filter, filterPos, width);
-                    call_new(NULL, dst1, sws->dst_w, src, filterAvx2, filterPosAvx, width);
+                    call_ref(NULL, (int16_t *)dst0, sws->dst_w, src, filter, filterPos, width);
+                    call_new(NULL, (int16_t *)dst1, sws->dst_w, src, filterAvx2, filterPosAvx, width);
                     if (memcmp(dst0, dst1, sws->dst_w * sizeof(dst0[0])))
                         fail();
-                    bench_new(NULL, dst0, sws->dst_w, src, filter, filterPosAvx, width);
+                    bench_new(NULL, (int16_t *)dst0, sws->dst_w, src, filter, filterPosAvx, width);
                 }
             }
         }
diff --git a/tests/checkasm/sw_yuv2rgb.c b/tests/checkasm/sw_yuv2rgb.c
index c25fb99ca2..c6c1ad934b 100644
--- a/tests/checkasm/sw_yuv2rgb.c
+++ b/tests/checkasm/sw_yuv2rgb.c
@@ -107,9 +107,9 @@ static void check_yuv2rgb(int src_pix_fmt)
     static const int input_sizes[] = {8, 128, 1080, MAX_LINE_SIZE};
 
     declare_func_emms(AV_CPU_FLAG_MMX | AV_CPU_FLAG_MMXEXT,
-                      int, SwsInternal *c, const uint8_t *src[],
-                           int srcStride[], int srcSliceY, int srcSliceH,
-                           uint8_t *dst[], int dstStride[]);
+                      int, SwsInternal *c, const uint8_t *const src[],
+                           const int srcStride[], int srcSliceY, int srcSliceH,
+                           uint8_t *const dst[], const int dstStride[]);
 
     LOCAL_ALIGNED_8(uint8_t, src_y, [MAX_LINE_SIZE * 2]);
     LOCAL_ALIGNED_8(uint8_t, src_u, [MAX_LINE_SIZE]);
diff --git a/tests/checkasm/sw_yuv2yuv.c b/tests/checkasm/sw_yuv2yuv.c
index 6fe8e47d19..6a7a7a8b9a 100644
--- a/tests/checkasm/sw_yuv2yuv.c
+++ b/tests/checkasm/sw_yuv2yuv.c
@@ -46,9 +46,9 @@ static void check_semiplanar(int dst_pix_fmt)
     static const int input_sizes[] = {8, 128, 1080, MAX_LINE_SIZE};
 
     declare_func_emms(AV_CPU_FLAG_MMX | AV_CPU_FLAG_MMXEXT,
-                      int, SwsInternal *c, const uint8_t *src[],
-                           int srcStride[], int srcSliceY, int srcSliceH,
-                           uint8_t *dst[], int dstStride[]);
+                      int, SwsInternal *c, const uint8_t *const src[],
+                           const int srcStride[], int srcSliceY, int srcSliceH,
+                           uint8_t *const dstParam[], const int dstStride[]);
 
     LOCAL_ALIGNED_8(uint8_t, src_y,  [MAX_LINE_SIZE * NUM_LINES]);
     LOCAL_ALIGNED_8(uint8_t, src_uv, [MAX_LINE_SIZE * NUM_LINES * 2]);