diff --git a/compiler/rustc_middle/src/query/mod.rs b/compiler/rustc_middle/src/query/mod.rs
index ad7f4973e235b..a80b323f4aeab 100644
--- a/compiler/rustc_middle/src/query/mod.rs
+++ b/compiler/rustc_middle/src/query/mod.rs
@@ -2152,9 +2152,6 @@ rustc_queries! {
         desc { |tcx| "collecting child items of module `{}`", tcx.def_path_str(def_id) }
         separate_provide_extern
     }
-    query extern_mod_stmt_cnum(def_id: LocalDefId) -> Option<CrateNum> {
-        desc { |tcx| "computing crate imported by `{}`", tcx.def_path_str(def_id) }
-    }
 
     /// Gets the number of definitions in a foreign crate.
     ///
diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs
index 51db92ecd78f2..aa1e753538c36 100644
--- a/compiler/rustc_middle/src/ty/context.rs
+++ b/compiler/rustc_middle/src/ty/context.rs
@@ -3373,6 +3373,11 @@ impl<'tcx> TyCtxt<'tcx> {
         self.resolutions(()).module_children.get(&def_id).map_or(&[], |v| &v[..])
     }
 
+    /// Return the crate imported by given use item.
+    pub fn extern_mod_stmt_cnum(self, def_id: LocalDefId) -> Option<CrateNum> {
+        self.resolutions(()).extern_crate_map.get(&def_id).copied()
+    }
+
     pub fn resolver_for_lowering(self) -> &'tcx Steal<(ty::ResolverAstLowering, Arc<ast::Crate>)> {
         self.resolver_for_lowering_raw(()).0
     }
@@ -3428,8 +3433,6 @@ pub struct DeducedParamAttrs {
 }
 
 pub fn provide(providers: &mut Providers) {
-    providers.extern_mod_stmt_cnum =
-        |tcx, id| tcx.resolutions(()).extern_crate_map.get(&id).cloned();
     providers.is_panic_runtime =
         |tcx, LocalCrate| contains_name(tcx.hir_krate_attrs(), sym::panic_runtime);
     providers.is_compiler_builtins =
diff --git a/compiler/rustc_passes/src/check_attr.rs b/compiler/rustc_passes/src/check_attr.rs
index 96c895e71dfe7..22092521fd8d0 100644
--- a/compiler/rustc_passes/src/check_attr.rs
+++ b/compiler/rustc_passes/src/check_attr.rs
@@ -1255,7 +1255,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> {
             return;
         }
 
-        if self.tcx.extern_mod_stmt_cnum(hir_id.owner).is_none() {
+        if self.tcx.extern_mod_stmt_cnum(hir_id.owner.def_id).is_none() {
             self.tcx.emit_node_span_lint(
                 INVALID_DOC_ATTRIBUTES,
                 hir_id,