diff --git a/LoongArch-Allow-attributes-in-non-gnu-namespaces.diff b/LoongArch-Allow-attributes-in-non-gnu-namespaces.diff
new file mode 100644
index 0000000000000000000000000000000000000000..ae7ac9be1055138d4c4d70b97e0283df2f5f715d
--- /dev/null
+++ b/LoongArch-Allow-attributes-in-non-gnu-namespaces.diff
@@ -0,0 +1,23 @@
+diff --git a/gcc/config/loongarch/loongarch.cc b/gcc/config/loongarch/loongarch.cc
+index 6be0d80b3..12af95f70 100644
+--- a/gcc/config/loongarch/loongarch.cc
++++ b/gcc/config/loongarch/loongarch.cc
+@@ -7917,15 +7917,13 @@ loongarch_handle_model_attribute (tree *node, tree name, tree arg, int,
+   return NULL_TREE;
+ }
+
+-static const struct attribute_spec loongarch_attribute_table[] =
++TARGET_GNU_ATTRIBUTES (loongarch_attribute_table,
+ {
+   /* { name, min_len, max_len, decl_req, type_req, fn_type_req,
+        affects_type_identity, handler, exclude } */
+   { "model", 1, 1, true, false, false, false,
+-    loongarch_handle_model_attribute, NULL },
+-  /* The last attribute spec is set to be NULL.  */
+-  {}
+-};
++    loongarch_handle_model_attribute, NULL }
++});
+
+ bool
+ loongarch_use_anchors_for_symbol_p (const_rtx symbol)
diff --git a/gcc.spec b/gcc.spec
index 9687d0ef3c1b4172cd446d940785a1e0adcab702..07264b49c5ebd067a2584671751b9267142d60bc 100644
--- a/gcc.spec
+++ b/gcc.spec
@@ -2,7 +2,7 @@
 %global gcc_major 12
 # Note, gcc_release must be integer, if you want to add suffixes to
 # %%{release}, append them after %%{gcc_release} on Release: line.
-%global gcc_release 45
+%global gcc_release 46
 
 %global _unpackaged_files_terminate_build 0
 %global _performance_build 1
@@ -739,6 +739,7 @@ Patch3319: 0189-LoongArch-fix-building-errors.patch
 Patch3320: 0190-tree-optimization-110702-avoid-zero-based-memory-ref.patch
 Patch3321: 0191-LoongArch-Change-OSDIR-for-distribution.patch
 Patch3322: Fix-indentation-and-numbering-errors.diff
+Patch3323: LoongArch-Allow-attributes-in-non-gnu-namespaces.diff
 %endif
 
 # On ARM EABI systems, we do want -gnueabi to be part of the
@@ -1810,6 +1811,7 @@ not stable, so plugins must be rebuilt any time GCC is updated.
 %patch -P3320 -p1
 %patch -P3321 -p1
 %patch -P3322 -p1
+%patch -P3323 -p1
 %endif
 
 echo '%{_vendor} %{version}-%{release}' > gcc/DEV-PHASE
@@ -4078,6 +4080,11 @@ end
 %doc rpm.doc/changelogs/libcc1/ChangeLog*
 
 %changelog
+* Wed Nov 27 2024 Peng Fan <fanpeng@loongson.cn> - 12.3.1-46
+- Type: BUGFIX
+- DESC:
+- LoongArch: Allow attributes in non-gnu namespaces.
+
 * Mon Nov 25 2024 Peng Fan <fanpeng@loongson.cn> - 12.3.1-45
 - Type: BUGFIX
 - DESC: