--- Makefile.config.orig	2023-08-14 17:36:38.938485273 +0200
+++ Makefile.config	2023-08-14 17:40:49.498233884 +0200
@@ -926,7 +926,7 @@
 	ASM_ALPHA_DRAINA ASM_ALPHA_HALT ASM_ARM_YIELD ASM_ARM_TLBI \
 	ASM_HPPA_DIAG ASM_HPPA_RFI ASM_M68K_EORI_SR ASM_MB ASM_MIPS_WAIT \
 	ASM_NOP ASM_S390_PTLB ASM_SH4_RTE ASM_SH4_SLEEP ASM_SPARC_MEMBAR \
-	ASM_SPARC_RDPR ASM_SPARC_TICK ASM_PPC64_DARN ASM_PPC64_DCBST \
+	ASM_SPARC_RDPR ASM_SPARC_TICK ASM_PPC64_DCBST \
 	ASM_PPC64_DCBT ASM_PPC64_DCBTST ASM_PPC64_ICBI ASM_PPC64_MSYNC \
 	ASM_PPC64_TLBIE ASM_RISCV_FENCE ASM_RISCV_FENCE_I ASM_RISCV_SFENCE_VMA \
 	ASM_X86_CLDEMOTE ASM_X86_CLFLUSH ASM_X86_CLFLUSHOPT ASM_X86_CLWB \
@@ -991,9 +991,6 @@
 ASM_MIPS_WAIT:
 	$(call check,test-asm-mips-wait,HAVE_ASM_MIPS_WAIT,MIPS wait instruction)
 
-ASM_PPC64_DARN:
-	$(call check,test-asm-ppc64-darn,HAVE_ASM_PPC64_DARN,ppc64 darn instruction)
-
 ASM_PPC64_DCBST:
 	$(call check,test-asm-ppc64-dcbst,HAVE_ASM_PPC64_DCBST,ppc64 dcbst instruction)