kfd_dbgmgr_mutex 38 drivers/gpu/drm/amd/amdkfd/kfd_dbgmgr.c static DEFINE_MUTEX(kfd_dbgmgr_mutex); kfd_dbgmgr_mutex 42 drivers/gpu/drm/amd/amdkfd/kfd_dbgmgr.c return &kfd_dbgmgr_mutex;