diff --git a/src/dsp/lossless.h b/src/dsp/lossless.h
index a72e3b2a..bbc1b8d3 100644
--- a/src/dsp/lossless.h
+++ b/src/dsp/lossless.h
@@ -128,13 +128,16 @@ void VP8LTransformColorInverse_C(const VP8LMultipliers* const m,
                                  const uint32_t* src, int num_pixels,
                                  uint32_t* dst);
 
-void VP8LConvertBGRAToRGB_C(const uint32_t* src, int num_pixels, uint8_t* dst);
-void VP8LConvertBGRAToRGBA_C(const uint32_t* src, int num_pixels, uint8_t* dst);
-void VP8LConvertBGRAToRGBA4444_C(const uint32_t* src,
-                                 int num_pixels, uint8_t* dst);
-void VP8LConvertBGRAToRGB565_C(const uint32_t* src,
-                               int num_pixels, uint8_t* dst);
-void VP8LConvertBGRAToBGR_C(const uint32_t* src, int num_pixels, uint8_t* dst);
+void VP8LConvertBGRAToRGB_C(const uint32_t* WEBP_RESTRICT src, int num_pixels,
+                            uint8_t* WEBP_RESTRICT dst);
+void VP8LConvertBGRAToRGBA_C(const uint32_t* WEBP_RESTRICT src, int num_pixels,
+                             uint8_t* WEBP_RESTRICT dst);
+void VP8LConvertBGRAToRGBA4444_C(const uint32_t* WEBP_RESTRICT src,
+                                 int num_pixels, uint8_t* WEBP_RESTRICT dst);
+void VP8LConvertBGRAToRGB565_C(const uint32_t* WEBP_RESTRICT src,
+                               int num_pixels, uint8_t* WEBP_RESTRICT dst);
+void VP8LConvertBGRAToBGR_C(const uint32_t* WEBP_RESTRICT src, int num_pixels,
+                            uint8_t* WEBP_RESTRICT dst);
 void VP8LAddGreenToBlueAndRed_C(const uint32_t* src, int num_pixels,
                                 uint32_t* dst);
 
@@ -165,8 +168,7 @@ extern VP8LCollectColorRedTransformsFunc VP8LCollectColorRedTransforms;
 // Expose some C-only fallback functions
 void VP8LTransformColor_C(const VP8LMultipliers* WEBP_RESTRICT const m,
                           uint32_t* WEBP_RESTRICT data, int num_pixels);
-void VP8LSubtractGreenFromBlueAndRed_C(uint32_t* WEBP_RESTRICT argb_data,
-                                       int num_pixels);
+void VP8LSubtractGreenFromBlueAndRed_C(uint32_t* argb_data, int num_pixels);
 void VP8LCollectColorRedTransforms_C(const uint32_t* WEBP_RESTRICT argb,
                                      int stride,
                                      int tile_width, int tile_height,
@@ -227,8 +229,8 @@ typedef void (*VP8LGetEntropyUnrefinedFunc)(
     VP8LStreaks* WEBP_RESTRICT const stats);
 extern VP8LGetEntropyUnrefinedFunc VP8LGetEntropyUnrefined;
 
-void VP8LBitsEntropyUnrefined(const uint32_t* const array, int n,
-                              VP8LBitEntropy* const entropy);
+void VP8LBitsEntropyUnrefined(const uint32_t* WEBP_RESTRICT const array, int n,
+                              VP8LBitEntropy* WEBP_RESTRICT const entropy);
 
 typedef void (*VP8LAddVectorFunc)(const uint32_t* WEBP_RESTRICT a,
                                   const uint32_t* WEBP_RESTRICT b,