Checking patch sysdeps/x86_64/multiarch/ifunc-impl-list.c...
error: while searching for:
	      X86_IFUNC_IMPL_ADD_V4 (array, i, memrchr,
				     (CPU_FEATURE_USABLE (AVX512VL)
				      && CPU_FEATURE_USABLE (AVX512BW)
				      && CPU_FEATURE_USABLE (LZCNT)),
				     __memrchr_evex)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memrchr,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (LZCNT)),
				     __memrchr_avx2)
	      X86_IFUNC_IMPL_ADD_V3 (array, i, memrchr,
				     (CPU_FEATURE_USABLE (AVX2)
				      && CPU_FEATURE_USABLE (LZCNT)
				      && CPU_FEATURE_USABLE (RTM)),
				     __memrchr_avx2_rtm)

error: patch failed: sysdeps/x86_64/multiarch/ifunc-impl-list.c:210
error: sysdeps/x86_64/multiarch/ifunc-impl-list.c: patch does not apply