[PATCH 8/9] drm/qxl: switch to using drm_exec

[kernel test robot]

Hi Christian,

I love your patch! Yet something to improve:

[auto build test ERROR on drm-misc/drm-misc-next]
[also build test ERROR on drm/drm-next drm-intel/for-linux-next linus/master next-20230228]
[cannot apply to drm-intel/for-linux-next-fixes v6.2]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Christian-K-nig/drm-add-drm_exec-selftests/20230228-173404
base:   git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
patch link:    https://lore.kernel.org/r/20230228083406.1720795-9-christian.koenig%40amd.com
patch subject: [PATCH 8/9] drm/qxl: switch to using drm_exec
config: x86_64-randconfig-a016-20230227 (https://download.01.org/0day-ci/archive/20230301/202303010013.SZZNcsCW-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/435d2421797eb683d27984c9a823b48704069df9
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Christian-K-nig/drm-add-drm_exec-selftests/20230228-173404
        git checkout 435d2421797eb683d27984c9a823b48704069df9
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 olddefconfig
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp at intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303010013.SZZNcsCW-lkp@intel.com/

All errors (new ones prefixed by >>):

   ld: vmlinux.o: in function `qxl_release_reserve_list':
>> drivers/gpu/drm/qxl/qxl_release.c:221: undefined reference to `drm_exec_init'
>> ld: drivers/gpu/drm/qxl/qxl_release.c:222: undefined reference to `drm_exec_cleanup'
>> ld: drivers/gpu/drm/qxl/qxl_release.c:224: undefined reference to `drm_exec_prepare_obj'
>> ld: drivers/gpu/drm/qxl/qxl_release.c:240: undefined reference to `drm_exec_fini'
   ld: vmlinux.o: in function `qxl_release_backoff_reserve_list':
>> drivers/gpu/drm/qxl/qxl_release.c:251: undefined reference to `drm_exec_fini'
   ld: vmlinux.o: in function `qxl_release_fence_buffer_objects':
   drivers/gpu/drm/qxl/qxl_release.c:439: undefined reference to `drm_exec_fini'


vim +221 drivers/gpu/drm/qxl/qxl_release.c

   210	
   211	int qxl_release_reserve_list(struct qxl_release *release, bool no_intr)
   212	{
   213		int ret;
   214		struct qxl_bo_list *entry;
   215	
   216		/* if only one object on the release its the release itself
   217		   since these objects are pinned no need to reserve */
   218		if (list_is_singular(&release->bos))
   219			return 0;
   220	
 > 221		drm_exec_init(&release->exec, !no_intr);
 > 222		drm_exec_while_not_all_locked(&release->exec) {
   223			list_for_each_entry(entry, &release->bos, list) {
 > 224				ret = drm_exec_prepare_obj(&release->exec,
   225							   &entry->bo->tbo.base,
   226							   1);
   227				drm_exec_break_on_contention(&release->exec);
   228				if (ret)
   229					goto error;
   230			}
   231		}
   232	
   233		list_for_each_entry(entry, &release->bos, list) {
   234			ret = qxl_release_validate_bo(entry->bo);
   235			if (ret)
   236				goto error;
   237		}
   238		return 0;
   239	error:
 > 240		drm_exec_fini(&release->exec);
   241		return ret;
   242	}
   243	
   244	void qxl_release_backoff_reserve_list(struct qxl_release *release)
   245	{
   246		/* if only one object on the release its the release itself
   247		   since these objects are pinned no need to reserve */
   248		if (list_is_singular(&release->bos))
   249			return;
   250	
 > 251		drm_exec_fini(&release->exec);
   252	}
   253	

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