diff -Nur gcc-11.2.0.orig/libgcc/config/csky/linux-atomic.c gcc-11.2.0/libgcc/config/csky/linux-atomic.c
--- gcc-11.2.0.orig/libgcc/config/csky/linux-atomic.c	2021-07-28 08:55:08.760307899 +0200
+++ gcc-11.2.0/libgcc/config/csky/linux-atomic.c	2021-12-14 14:19:23.685729233 +0100
@@ -24,7 +24,7 @@
    <http://www.gnu.org/licenses/>.	 */
 
 /* Kernel helper for compare-and-exchange.  */
-inline int
+int
 __kernel_cmpxchg (int oldval, int newval, volatile int *ptr)
 {
   register int _a0 asm ("a0") = oldval;