diff --git a/src/dsp/alpha_processing_mips_dsp_r2.c b/src/dsp/alpha_processing_mips_dsp_r2.c
index e5644998..c631d789 100644
--- a/src/dsp/alpha_processing_mips_dsp_r2.c
+++ b/src/dsp/alpha_processing_mips_dsp_r2.c
@@ -136,7 +136,6 @@ WEBP_TSAN_IGNORE_FUNCTION void WebPInitAlphaProcessingMIPSdspR2(void) {
 
 #else  // !WEBP_USE_MIPS_DSP_R2
 
-extern void WebPInitAlphaProcessingMIPSdspR2(void);
-WEBP_TSAN_IGNORE_FUNCTION void WebPInitAlphaProcessingMIPSdspR2(void) {}
+WEBP_DSP_INIT_STUB(WebPInitAlphaProcessingMIPSdspR2)
 
 #endif  // WEBP_USE_MIPS_DSP_R2
diff --git a/src/dsp/alpha_processing_sse2.c b/src/dsp/alpha_processing_sse2.c
index 40501303..5acb481d 100644
--- a/src/dsp/alpha_processing_sse2.c
+++ b/src/dsp/alpha_processing_sse2.c
@@ -293,7 +293,6 @@ WEBP_TSAN_IGNORE_FUNCTION void WebPInitAlphaProcessingSSE2(void) {
 
 #else  // !WEBP_USE_SSE2
 
-extern void WebPInitAlphaProcessingSSE2(void);
-WEBP_TSAN_IGNORE_FUNCTION void WebPInitAlphaProcessingSSE2(void) {}
+WEBP_DSP_INIT_STUB(WebPInitAlphaProcessingSSE2)
 
 #endif  // WEBP_USE_SSE2
diff --git a/src/dsp/argb_mips_dsp_r2.c b/src/dsp/argb_mips_dsp_r2.c
index 9e8b06c4..af65acb8 100644
--- a/src/dsp/argb_mips_dsp_r2.c
+++ b/src/dsp/argb_mips_dsp_r2.c
@@ -105,7 +105,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspARGBInitMIPSdspR2(void) {
 
 #else  // !WEBP_USE_MIPS_DSP_R2
 
-extern void VP8EncDspARGBInitMIPSdspR2(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspARGBInitMIPSdspR2(void) {}
+WEBP_DSP_INIT_STUB(VP8EncDspARGBInitMIPSdspR2)
 
 #endif  // WEBP_USE_MIPS_DSP_R2
diff --git a/src/dsp/argb_sse2.c b/src/dsp/argb_sse2.c
index dc54e2c8..afcb1957 100644
--- a/src/dsp/argb_sse2.c
+++ b/src/dsp/argb_sse2.c
@@ -62,7 +62,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspARGBInitSSE2(void) {
 
 #else  // !WEBP_USE_SSE2
 
-extern void VP8EncDspARGBInitSSE2(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspARGBInitSSE2(void) {}
+WEBP_DSP_INIT_STUB(VP8EncDspARGBInitSSE2)
 
 #endif  // WEBP_USE_SSE2
diff --git a/src/dsp/cost_mips32.c b/src/dsp/cost_mips32.c
index f13f37b7..d1e240e1 100644
--- a/src/dsp/cost_mips32.c
+++ b/src/dsp/cost_mips32.c
@@ -149,7 +149,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspCostInitMIPS32(void) {
 
 #else  // !WEBP_USE_MIPS32
 
-extern void VP8EncDspCostInitMIPS32(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspCostInitMIPS32(void) {}
+WEBP_DSP_INIT_STUB(VP8EncDspCostInitMIPS32)
 
 #endif  // WEBP_USE_MIPS32
diff --git a/src/dsp/cost_mips_dsp_r2.c b/src/dsp/cost_mips_dsp_r2.c
index 4f9f8dae..ce640677 100644
--- a/src/dsp/cost_mips_dsp_r2.c
+++ b/src/dsp/cost_mips_dsp_r2.c
@@ -102,7 +102,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspCostInitMIPSdspR2(void) {
 
 #else  // !WEBP_USE_MIPS_DSP_R2
 
-extern void VP8EncDspCostInitMIPSdspR2(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspCostInitMIPSdspR2(void) {}
+WEBP_DSP_INIT_STUB(VP8EncDspCostInitMIPSdspR2)
 
 #endif  // WEBP_USE_MIPS_DSP_R2
diff --git a/src/dsp/cost_sse2.c b/src/dsp/cost_sse2.c
index 67c29109..96f8f7fd 100644
--- a/src/dsp/cost_sse2.c
+++ b/src/dsp/cost_sse2.c
@@ -119,7 +119,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspCostInitSSE2(void) {
 
 #else  // !WEBP_USE_SSE2
 
-extern void VP8EncDspCostInitSSE2(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspCostInitSSE2(void) {}
+WEBP_DSP_INIT_STUB(VP8EncDspCostInitSSE2)
 
 #endif  // WEBP_USE_SSE2
diff --git a/src/dsp/dec_mips32.c b/src/dsp/dec_mips32.c
index edd5e93f..e85bbb15 100644
--- a/src/dsp/dec_mips32.c
+++ b/src/dsp/dec_mips32.c
@@ -582,7 +582,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitMIPS32(void) {
 
 #else  // !WEBP_USE_MIPS32
 
-extern void VP8DspInitMIPS32(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitMIPS32(void) {}
+WEBP_DSP_INIT_STUB(VP8DspInitMIPS32)
 
 #endif  // WEBP_USE_MIPS32
diff --git a/src/dsp/dec_mips_dsp_r2.c b/src/dsp/dec_mips_dsp_r2.c
index ecd2fa33..6590f439 100644
--- a/src/dsp/dec_mips_dsp_r2.c
+++ b/src/dsp/dec_mips_dsp_r2.c
@@ -989,7 +989,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitMIPSdspR2(void) {
 
 #else  // !WEBP_USE_MIPS_DSP_R2
 
-extern void VP8DspInitMIPSdspR2(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitMIPSdspR2(void) {}
+WEBP_DSP_INIT_STUB(VP8DspInitMIPSdspR2)
 
 #endif  // WEBP_USE_MIPS_DSP_R2
diff --git a/src/dsp/dec_neon.c b/src/dsp/dec_neon.c
index 2e3a2770..86a830da 100644
--- a/src/dsp/dec_neon.c
+++ b/src/dsp/dec_neon.c
@@ -1486,7 +1486,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitNEON(void) {
 
 #else  // !WEBP_USE_NEON
 
-extern void VP8DspInitNEON(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitNEON(void) {}
+WEBP_DSP_INIT_STUB(VP8DspInitNEON)
 
 #endif  // WEBP_USE_NEON
diff --git a/src/dsp/dec_sse2.c b/src/dsp/dec_sse2.c
index 37ae01eb..744d5fb4 100644
--- a/src/dsp/dec_sse2.c
+++ b/src/dsp/dec_sse2.c
@@ -1280,7 +1280,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitSSE2(void) {
 
 #else  // !WEBP_USE_SSE2
 
-extern void VP8DspInitSSE2(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitSSE2(void) {}
+WEBP_DSP_INIT_STUB(VP8DspInitSSE2)
 
 #endif  // WEBP_USE_SSE2
diff --git a/src/dsp/dec_sse41.c b/src/dsp/dec_sse41.c
index 23c4e3a7..dc1e7042 100644
--- a/src/dsp/dec_sse41.c
+++ b/src/dsp/dec_sse41.c
@@ -40,7 +40,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitSSE41(void) {
 
 #else  // !WEBP_USE_SSE41
 
-extern void VP8DspInitSSE41(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitSSE41(void) {}
+WEBP_DSP_INIT_STUB(VP8DspInitSSE41)
 
 #endif  // WEBP_USE_SSE41
diff --git a/src/dsp/dsp.h b/src/dsp/dsp.h
index b52af8f0..785df706 100644
--- a/src/dsp/dsp.h
+++ b/src/dsp/dsp.h
@@ -122,6 +122,15 @@ typedef enum {
 typedef int (*VP8CPUInfo)(CPUFeature feature);
 WEBP_EXTERN(VP8CPUInfo) VP8GetCPUInfo;
 
+//------------------------------------------------------------------------------
+// Init stub generator
+
+// Defines an init function stub to ensure each module exposes a symbol,
+// avoiding a compiler warning.
+#define WEBP_DSP_INIT_STUB(func) \
+  extern void func(void); \
+  WEBP_TSAN_IGNORE_FUNCTION void func(void) {}
+
 //------------------------------------------------------------------------------
 // Encoding
 
diff --git a/src/dsp/enc_avx2.c b/src/dsp/enc_avx2.c
index ea634e0d..93efb30b 100644
--- a/src/dsp/enc_avx2.c
+++ b/src/dsp/enc_avx2.c
@@ -18,7 +18,4 @@
 //------------------------------------------------------------------------------
 // Entry point
 
-extern void VP8EncDspInitAVX2(void);
-
-WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitAVX2(void) {
-}
+WEBP_DSP_INIT_STUB(VP8EncDspInitAVX2)
diff --git a/src/dsp/enc_mips32.c b/src/dsp/enc_mips32.c
index 6c1e2836..c5837f12 100644
--- a/src/dsp/enc_mips32.c
+++ b/src/dsp/enc_mips32.c
@@ -667,7 +667,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitMIPS32(void) {
 
 #else  // !WEBP_USE_MIPS32
 
-extern void VP8EncDspInitMIPS32(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitMIPS32(void) {}
+WEBP_DSP_INIT_STUB(VP8EncDspInitMIPS32)
 
 #endif  // WEBP_USE_MIPS32
diff --git a/src/dsp/enc_mips_dsp_r2.c b/src/dsp/enc_mips_dsp_r2.c
index fa3bf510..56db07ca 100644
--- a/src/dsp/enc_mips_dsp_r2.c
+++ b/src/dsp/enc_mips_dsp_r2.c
@@ -1507,7 +1507,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitMIPSdspR2(void) {
 
 #else  // !WEBP_USE_MIPS_DSP_R2
 
-extern void VP8EncDspInitMIPSdspR2(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitMIPSdspR2(void) {}
+WEBP_DSP_INIT_STUB(VP8EncDspInitMIPSdspR2)
 
 #endif  // WEBP_USE_MIPS_DSP_R2
diff --git a/src/dsp/enc_neon.c b/src/dsp/enc_neon.c
index b6efb8db..c2aef58e 100644
--- a/src/dsp/enc_neon.c
+++ b/src/dsp/enc_neon.c
@@ -929,7 +929,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitNEON(void) {
 
 #else  // !WEBP_USE_NEON
 
-extern void VP8EncDspInitNEON(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitNEON(void) {}
+WEBP_DSP_INIT_STUB(VP8EncDspInitNEON)
 
 #endif  // WEBP_USE_NEON
diff --git a/src/dsp/enc_sse2.c b/src/dsp/enc_sse2.c
index 130ee362..13030bc1 100644
--- a/src/dsp/enc_sse2.c
+++ b/src/dsp/enc_sse2.c
@@ -937,7 +937,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitSSE2(void) {
 
 #else  // !WEBP_USE_SSE2
 
-extern void VP8EncDspInitSSE2(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitSSE2(void) {}
+WEBP_DSP_INIT_STUB(VP8EncDspInitSSE2)
 
 #endif  // WEBP_USE_SSE2
diff --git a/src/dsp/enc_sse41.c b/src/dsp/enc_sse41.c
index 39b66d33..54b3ae1f 100644
--- a/src/dsp/enc_sse41.c
+++ b/src/dsp/enc_sse41.c
@@ -420,7 +420,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitSSE41(void) {
 
 #else  // !WEBP_USE_SSE41
 
-extern void VP8EncDspInitSSE41(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitSSE41(void) {}
+WEBP_DSP_INIT_STUB(VP8EncDspInitSSE41)
 
 #endif  // WEBP_USE_SSE41
diff --git a/src/dsp/filters_mips_dsp_r2.c b/src/dsp/filters_mips_dsp_r2.c
index ba8121ce..66f807dd 100644
--- a/src/dsp/filters_mips_dsp_r2.c
+++ b/src/dsp/filters_mips_dsp_r2.c
@@ -400,7 +400,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8FiltersInitMIPSdspR2(void) {
 
 #else  // !WEBP_USE_MIPS_DSP_R2
 
-extern void VP8FiltersInitMIPSdspR2(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8FiltersInitMIPSdspR2(void) {}
+WEBP_DSP_INIT_STUB(VP8FiltersInitMIPSdspR2)
 
 #endif  // WEBP_USE_MIPS_DSP_R2
diff --git a/src/dsp/filters_sse2.c b/src/dsp/filters_sse2.c
index 97dfb10a..bf93342e 100644
--- a/src/dsp/filters_sse2.c
+++ b/src/dsp/filters_sse2.c
@@ -347,7 +347,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8FiltersInitSSE2(void) {
 
 #else  // !WEBP_USE_SSE2
 
-extern void VP8FiltersInitSSE2(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8FiltersInitSSE2(void) {}
+WEBP_DSP_INIT_STUB(VP8FiltersInitSSE2)
 
 #endif  // WEBP_USE_SSE2
diff --git a/src/dsp/lossless_enc_mips32.c b/src/dsp/lossless_enc_mips32.c
index 103944e1..922d88e7 100644
--- a/src/dsp/lossless_enc_mips32.c
+++ b/src/dsp/lossless_enc_mips32.c
@@ -413,7 +413,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8LEncDspInitMIPS32(void) {
 
 #else  // !WEBP_USE_MIPS32
 
-extern void VP8LEncDspInitMIPS32(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8LEncDspInitMIPS32(void) {}
+WEBP_DSP_INIT_STUB(VP8LEncDspInitMIPS32)
 
 #endif  // WEBP_USE_MIPS32
diff --git a/src/dsp/lossless_enc_mips_dsp_r2.c b/src/dsp/lossless_enc_mips_dsp_r2.c
index 06fed565..0abf3c4f 100644
--- a/src/dsp/lossless_enc_mips_dsp_r2.c
+++ b/src/dsp/lossless_enc_mips_dsp_r2.c
@@ -270,7 +270,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8LEncDspInitMIPSdspR2(void) {
 
 #else  // !WEBP_USE_MIPS_DSP_R2
 
-extern void VP8LEncDspInitMIPSdspR2(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8LEncDspInitMIPSdspR2(void) {}
+WEBP_DSP_INIT_STUB(VP8LEncDspInitMIPSdspR2)
 
 #endif  // WEBP_USE_MIPS_DSP_R2
diff --git a/src/dsp/lossless_enc_neon.c b/src/dsp/lossless_enc_neon.c
index 076d91ec..8cd5a7ad 100644
--- a/src/dsp/lossless_enc_neon.c
+++ b/src/dsp/lossless_enc_neon.c
@@ -87,7 +87,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8LEncDspInitNEON(void) {
 
 #else  // !WEBP_USE_NEON
 
-extern void VP8LEncDspInitNEON(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8LEncDspInitNEON(void) {}
+WEBP_DSP_INIT_STUB(VP8LEncDspInitNEON)
 
 #endif  // WEBP_USE_NEON
diff --git a/src/dsp/lossless_enc_sse2.c b/src/dsp/lossless_enc_sse2.c
index 298190ad..3c09feef 100644
--- a/src/dsp/lossless_enc_sse2.c
+++ b/src/dsp/lossless_enc_sse2.c
@@ -188,7 +188,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8LEncDspInitSSE2(void) {
 
 #else  // !WEBP_USE_SSE2
 
-extern void VP8LEncDspInitSSE2(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8LEncDspInitSSE2(void) {}
+WEBP_DSP_INIT_STUB(VP8LEncDspInitSSE2)
 
 #endif  // WEBP_USE_SSE2
diff --git a/src/dsp/lossless_mips_dsp_r2.c b/src/dsp/lossless_mips_dsp_r2.c
index a5d1cf82..ad55f2c8 100644
--- a/src/dsp/lossless_mips_dsp_r2.c
+++ b/src/dsp/lossless_mips_dsp_r2.c
@@ -675,7 +675,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8LDspInitMIPSdspR2(void) {
 
 #else  // !WEBP_USE_MIPS_DSP_R2
 
-extern void VP8LDspInitMIPSdspR2(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8LDspInitMIPSdspR2(void) {}
+WEBP_DSP_INIT_STUB(VP8LDspInitMIPSdspR2)
 
 #endif  // WEBP_USE_MIPS_DSP_R2
diff --git a/src/dsp/lossless_neon.c b/src/dsp/lossless_neon.c
index ec0217b3..42dbc40c 100644
--- a/src/dsp/lossless_neon.c
+++ b/src/dsp/lossless_neon.c
@@ -335,7 +335,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8LDspInitNEON(void) {
 
 #else  // !WEBP_USE_NEON
 
-extern void VP8LDspInitNEON(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8LDspInitNEON(void) {}
+WEBP_DSP_INIT_STUB(VP8LDspInitNEON)
 
 #endif  // WEBP_USE_NEON
diff --git a/src/dsp/lossless_sse2.c b/src/dsp/lossless_sse2.c
index e374a6b9..d3bc77b6 100644
--- a/src/dsp/lossless_sse2.c
+++ b/src/dsp/lossless_sse2.c
@@ -388,7 +388,6 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8LDspInitSSE2(void) {
 
 #else  // !WEBP_USE_SSE2
 
-extern void VP8LDspInitSSE2(void);
-WEBP_TSAN_IGNORE_FUNCTION void VP8LDspInitSSE2(void) {}
+WEBP_DSP_INIT_STUB(VP8LDspInitSSE2)
 
 #endif  // WEBP_USE_SSE2
diff --git a/src/dsp/rescaler_mips32.c b/src/dsp/rescaler_mips32.c
index 77898b72..467e6116 100644
--- a/src/dsp/rescaler_mips32.c
+++ b/src/dsp/rescaler_mips32.c
@@ -189,7 +189,6 @@ WEBP_TSAN_IGNORE_FUNCTION void WebPRescalerDspInitMIPS32(void) {
 
 #else  // !WEBP_USE_MIPS32
 
-extern void WebPRescalerDspInitMIPS32(void);
-WEBP_TSAN_IGNORE_FUNCTION void WebPRescalerDspInitMIPS32(void) {}
+WEBP_DSP_INIT_STUB(WebPRescalerDspInitMIPS32)
 
 #endif  // WEBP_USE_MIPS32
diff --git a/src/dsp/rescaler_mips_dsp_r2.c b/src/dsp/rescaler_mips_dsp_r2.c
index a193c98b..68dcb189 100644
--- a/src/dsp/rescaler_mips_dsp_r2.c
+++ b/src/dsp/rescaler_mips_dsp_r2.c
@@ -207,7 +207,6 @@ WEBP_TSAN_IGNORE_FUNCTION void WebPRescalerDspInitMIPSdspR2(void) {
 
 #else  // !WEBP_USE_MIPS_DSP_R2
 
-extern void WebPRescalerDspInitMIPSdspR2(void);
-WEBP_TSAN_IGNORE_FUNCTION void WebPRescalerDspInitMIPSdspR2(void) {}
+WEBP_DSP_INIT_STUB(WebPRescalerDspInitMIPSdspR2)
 
 #endif  // WEBP_USE_MIPS_DSP_R2
diff --git a/src/dsp/upsampling_mips_dsp_r2.c b/src/dsp/upsampling_mips_dsp_r2.c
index a8edb563..9c9665fe 100644
--- a/src/dsp/upsampling_mips_dsp_r2.c
+++ b/src/dsp/upsampling_mips_dsp_r2.c
@@ -273,12 +273,10 @@ WEBP_TSAN_IGNORE_FUNCTION void WebPInitYUV444ConvertersMIPSdspR2(void) {
 
 #else  // !WEBP_USE_MIPS_DSP_R2
 
-extern void WebPInitYUV444ConvertersMIPSdspR2(void);
-WEBP_TSAN_IGNORE_FUNCTION void WebPInitYUV444ConvertersMIPSdspR2(void) {}
+WEBP_DSP_INIT_STUB(WebPInitYUV444ConvertersMIPSdspR2)
 
 #endif  // WEBP_USE_MIPS_DSP_R2
 
 #if !(defined(FANCY_UPSAMPLING) && defined(WEBP_USE_MIPS_DSP_R2))
-extern void WebPInitUpsamplersMIPSdspR2(void);
-WEBP_TSAN_IGNORE_FUNCTION void WebPInitUpsamplersMIPSdspR2(void) {}
+WEBP_DSP_INIT_STUB(WebPInitUpsamplersMIPSdspR2)
 #endif
diff --git a/src/dsp/upsampling_neon.c b/src/dsp/upsampling_neon.c
index 8597f155..a8384c21 100644
--- a/src/dsp/upsampling_neon.c
+++ b/src/dsp/upsampling_neon.c
@@ -257,6 +257,5 @@ WEBP_TSAN_IGNORE_FUNCTION void WebPInitUpsamplersNEON(void) {
 #endif  // WEBP_USE_NEON
 
 #if !(defined(FANCY_UPSAMPLING) && defined(WEBP_USE_NEON))
-extern void WebPInitUpsamplersNEON(void);
-WEBP_TSAN_IGNORE_FUNCTION void WebPInitUpsamplersNEON(void) {}
+WEBP_DSP_INIT_STUB(WebPInitUpsamplersNEON)
 #endif
diff --git a/src/dsp/upsampling_sse2.c b/src/dsp/upsampling_sse2.c
index ca70069e..ce5c1725 100644
--- a/src/dsp/upsampling_sse2.c
+++ b/src/dsp/upsampling_sse2.c
@@ -204,6 +204,5 @@ WEBP_TSAN_IGNORE_FUNCTION void WebPInitUpsamplersSSE2(void) {
 #endif  // WEBP_USE_SSE2
 
 #if !(defined(FANCY_UPSAMPLING) && defined(WEBP_USE_SSE2))
-extern void WebPInitUpsamplersSSE2(void);
-WEBP_TSAN_IGNORE_FUNCTION void WebPInitUpsamplersSSE2(void) {}
+WEBP_DSP_INIT_STUB(WebPInitUpsamplersSSE2)
 #endif
diff --git a/src/dsp/yuv_mips32.c b/src/dsp/yuv_mips32.c
index 80b9ba3c..018f8ab7 100644
--- a/src/dsp/yuv_mips32.c
+++ b/src/dsp/yuv_mips32.c
@@ -98,7 +98,6 @@ WEBP_TSAN_IGNORE_FUNCTION void WebPInitSamplersMIPS32(void) {
 
 #else  // !WEBP_USE_MIPS32
 
-extern void WebPInitSamplersMIPS32(void);
-WEBP_TSAN_IGNORE_FUNCTION void WebPInitSamplersMIPS32(void) {}
+WEBP_DSP_INIT_STUB(WebPInitSamplersMIPS32)
 
 #endif  // WEBP_USE_MIPS32
diff --git a/src/dsp/yuv_mips_dsp_r2.c b/src/dsp/yuv_mips_dsp_r2.c
index 8f6caa93..43f02cca 100644
--- a/src/dsp/yuv_mips_dsp_r2.c
+++ b/src/dsp/yuv_mips_dsp_r2.c
@@ -129,7 +129,6 @@ WEBP_TSAN_IGNORE_FUNCTION void WebPInitSamplersMIPSdspR2(void) {
 
 #else  // !WEBP_USE_MIPS_DSP_R2
 
-extern void WebPInitSamplersMIPSdspR2(void);
-WEBP_TSAN_IGNORE_FUNCTION void WebPInitSamplersMIPSdspR2(void) {}
+WEBP_DSP_INIT_STUB(WebPInitSamplersMIPSdspR2)
 
 #endif  // WEBP_USE_MIPS_DSP_R2
diff --git a/src/dsp/yuv_sse2.c b/src/dsp/yuv_sse2.c
index d7671ce3..47d99e73 100644
--- a/src/dsp/yuv_sse2.c
+++ b/src/dsp/yuv_sse2.c
@@ -319,7 +319,6 @@ WEBP_TSAN_IGNORE_FUNCTION void WebPInitSamplersSSE2(void) {
 
 #else  // !WEBP_USE_SSE2
 
-extern void WebPInitSamplersSSE2(void);
-WEBP_TSAN_IGNORE_FUNCTION void WebPInitSamplersSSE2(void) {}
+WEBP_DSP_INIT_STUB(WebPInitSamplersSSE2)
 
 #endif  // WEBP_USE_SSE2