5 files changed, 10 insertions, 5 deletions
diff --git a/absl/base/internal/malloc_hook.cc b/absl/base/internal/malloc_hook.cc
index 7165d4cb..52531c68 100644
--- a/absl/base/internal/malloc_hook.cc
+++ b/absl/base/internal/malloc_hook.cc
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#include "absl/base/attributes.h"
 #include "absl/base/config.h"
 
 #if ABSL_HAVE_MMAP
diff --git a/absl/base/internal/spinlock.cc b/absl/base/internal/spinlock.cc
index 3ac1f4dc..28a2059f 100644
--- a/absl/base/internal/spinlock.cc
+++ b/absl/base/internal/spinlock.cc
@@ -83,11 +83,6 @@ void RegisterSpinLockProfiler(void (*fn)(const void *contendedlock,
   submit_profile_data.Store(fn);
 }
 
-static inline bool IsCooperative(
-    base_internal::SchedulingMode scheduling_mode) {
-  return scheduling_mode == base_internal::SCHEDULE_COOPERATIVE_AND_KERNEL;
-}
-
 // Uncommon constructors.
 SpinLock::SpinLock(base_internal::SchedulingMode mode)
     : lockword_(IsCooperative(mode) ? kSpinLockCooperative : 0) {
diff --git a/absl/base/internal/spinlock.h b/absl/base/internal/spinlock.h
index f486f68a..a9037e3e 100644
--- a/absl/base/internal/spinlock.h
+++ b/absl/base/internal/spinlock.h
@@ -151,6 +151,12 @@ class LOCKABLE SpinLock {
   enum { kWaitTimeMask =                      // Includes kSpinLockSleeper.
     ~(kSpinLockHeld | kSpinLockCooperative | kSpinLockDisabledScheduling) };
 
+  // Returns true if the provided scheduling mode is cooperative.
+  static constexpr bool IsCooperative(
+      base_internal::SchedulingMode scheduling_mode) {
+    return scheduling_mode == base_internal::SCHEDULE_COOPERATIVE_AND_KERNEL;
+  }
+
   uint32_t TryLockInternal(uint32_t lock_value, uint32_t wait_cycles);
   void InitLinkerInitializedAndCooperative();
   void SlowLock() ABSL_ATTRIBUTE_COLD;
diff --git a/absl/base/internal/sysinfo.cc b/absl/base/internal/sysinfo.cc
index 884c3126..dca7d8fd 100644
--- a/absl/base/internal/sysinfo.cc
+++ b/absl/base/internal/sysinfo.cc
@@ -14,6 +14,8 @@
 
 #include "absl/base/internal/sysinfo.h"
 
+#include "absl/base/attributes.h"
+
 #ifdef _WIN32
 #include <shlwapi.h>
 #include <windows.h>
diff --git a/absl/base/internal/thread_identity_test.cc b/absl/base/internal/thread_identity_test.cc
index 7695a091..ecb8af68 100644
--- a/absl/base/internal/thread_identity_test.cc
+++ b/absl/base/internal/thread_identity_test.cc
@@ -18,6 +18,7 @@
 #include <vector>
 
 #include "gtest/gtest.h"
+#include "absl/base/attributes.h"
 #include "absl/base/internal/spinlock.h"
 #include "absl/base/macros.h"
 #include "absl/synchronization/internal/per_thread_sem.h"