phy: fix precoder types collision

Author: xavierarteaga

lib/phy/generic_functions/precoding/channel_precoder_avx2.cpp

@@ -13,6 +13,8 @@
 
 using namespace srsran;
 
+namespace {
+
 // Size of an AVX2 register in complex numbers with 32-bit floating point precision.
 static constexpr unsigned AVX2_CF_SIZE = 4;
 
@@ -39,6 +41,8 @@ simd_cf_interleaved operator*(const simd_cf_interleaved& re, const simd_cf_t& we
   return _mm256_fmaddsub_ps(re, weight.re, _mm256_mul_ps(_mm256_shuffle_ps(re, re, 0xb1), weight.im));
 }
 
+} // namespace
+
 void channel_precoder_avx2::apply_precoding_port(span<cf_t>              port_re,
                                                  const re_buffer_reader& input_re,
                                                  span<const cf_t>        port_weights)

lib/phy/generic_functions/precoding/channel_precoder_avx512.cpp

@@ -13,6 +13,8 @@
 
 using namespace srsran;
 
+namespace {
+
 // Size of an AVX512 register in complex numbers with 32-bit floating point precision.
 static constexpr unsigned AVX512_CF_SIZE = 8;
 
@@ -32,6 +34,8 @@ struct simd_cf_t {
 // Type to hold a set of complex numbers using an AVX512 register, with interleaved real and imaginary parts.
 using simd_cf_interleaved = __m512;
 
+} // namespace
+
 // Multiplication operator for the precoding weights.
 simd_cf_interleaved operator*(const simd_cf_interleaved& re, const simd_cf_t& weight)
 {