tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking/core head: 0f5225b024d4bffd682aab008c35862e8fdc1865 commit: 0f5225b024d4bffd682aab008c35862e8fdc1865 [12/12] locking/mutex, drm: Introduce mutex_trylock_recursive() config: arm64-defconfig (attached as .config) compiler: aarch64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 0f5225b024d4bffd682aab008c35862e8fdc1865 # save the attached .config to linux build tree make.cross ARCH=arm64
All warnings (new ones prefixed by >>):
drivers/gpu/drm/msm/msm_gem_shrinker.c: In function 'msm_gem_shrinker_lock':
>> drivers/gpu/drm/msm/msm_gem_shrinker.c:23:2: warning:
>> 'mutex_trylock_recursive' is deprecated [-Wdeprecated-declarations]
switch (mutex_trylock_recursive(&dev->struct_mutex)) {
^~~~~~
In file included from include/linux/notifier.h:13:0,
from include/linux/clk.h:17,
from drivers/gpu/drm/msm/msm_drv.h:22,
from drivers/gpu/drm/msm/msm_gem_shrinker.c:18:
include/linux/mutex.h:215:1: note: declared here
mutex_trylock_recursive(struct mutex *lock)
^~~~~~~~~~~~~~~~~~~~~~~
vim +/mutex_trylock_recursive +23 drivers/gpu/drm/msm/msm_gem_shrinker.c
7 * the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but
WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License
along with
15 * this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18 #include "msm_drv.h"
19 #include "msm_gem.h"
20
21 static bool msm_gem_shrinker_lock(struct drm_device *dev, bool *unlock)
22 {
> 23 switch (mutex_trylock_recursive(&dev->struct_mutex)) {
24 case MUTEX_TRYLOCK_FAILED:
25 return false;
26
27 case MUTEX_TRYLOCK_SUCCESS:
28 *unlock = true;
29 return true;
30
31 case MUTEX_TRYLOCK_RECURSIVE:
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
Description: application/gzip
