/home/wulf/dvp/drm-kmod/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c:187:15: error: expression result unused [-Werror,-Wunused-value]
  187 |         if (unlikely(rcu_dereference_protected(*ptr, 1))) {
      |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/wulf/dvp/freebsd/wulf/sys/compat/linuxkpi/common/include/linux/rcupdate.h:115:5: note: expanded from macro 'rcu_dereference_protected'
  115 |     __rcu_dereference_protected((p), (c),                               \
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  116 |         __rcu_var_name(protected, __func__, __LINE__))
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/wulf/dvp/freebsd/wulf/sys/compat/linuxkpi/common/include/linux/rcupdate.h:109:5: note: expanded from macro '__rcu_dereference_protected'
  109 |     RCU_WARN_ONCE(!(c), "%s:%d: condition for %s failed\n",             \
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  110 |         __func__, __LINE__, __XSTRING(n));                              \
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/wulf/dvp/freebsd/wulf/sys/compat/linuxkpi/common/include/linux/rcupdate.h:45:3: note: expanded from macro 'RCU_WARN_ONCE'
   45 |                 1;                                                      \
      |                 ^
/home/wulf/dvp/freebsd/wulf/sys/compat/linuxkpi/common/include/linux/compiler.h:82:43: note: expanded from macro 'unlikely'
   82 | #define unlikely(x)                     __builtin_expect(!!(x), 0)