Hi Gerd, I love your patch! Perhaps something to improve: [auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on drm-tip/drm-tip drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next linus/master v5.11-rc6 next-20210125] [cannot apply to drm/drm-next] [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] url: https://github.com/0day-ci/linux/commits/Gerd-Hoffmann/drm-qxl-fix-driver-shutdown-issues/20210203-211739 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: i386-randconfig-a013-20210202 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/0b11c8d52de8c79900ab632aa3527f19c442efc6 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Gerd-Hoffmann/drm-qxl-fix-driver-shutdown-issues/20210203-211739 git checkout 0b11c8d52de8c79900ab632aa3527f19c442efc6 # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): drivers/gpu/drm/qxl/qxl_release.c: In function 'qxl_fence_wait': >> drivers/gpu/drm/qxl/qxl_release.c:61:22: warning: variable 'release' set but not used [-Wunused-but-set-variable] 61 | struct qxl_release *release; | ^~~~~~~ vim +/release +61 drivers/gpu/drm/qxl/qxl_release.c 2f453ed4038526 Maarten Lankhorst 2014-04-02 56 f54d1867005c33 Chris Wilson 2016-10-25 57 static long qxl_fence_wait(struct dma_fence *fence, bool intr, f54d1867005c33 Chris Wilson 2016-10-25 58 signed long timeout) 2f453ed4038526 Maarten Lankhorst 2014-04-02 59 { 2f453ed4038526 Maarten Lankhorst 2014-04-02 60 struct qxl_device *qdev; 2f453ed4038526 Maarten Lankhorst 2014-04-02 @61 struct qxl_release *release; 2f453ed4038526 Maarten Lankhorst 2014-04-02 62 unsigned long cur, end = jiffies + timeout; 2f453ed4038526 Maarten Lankhorst 2014-04-02 63 2f453ed4038526 Maarten Lankhorst 2014-04-02 64 qdev = container_of(fence->lock, struct qxl_device, release_lock); 2f453ed4038526 Maarten Lankhorst 2014-04-02 65 release = container_of(fence, struct qxl_release, base); 2f453ed4038526 Maarten Lankhorst 2014-04-02 66 f54d1867005c33 Chris Wilson 2016-10-25 67 if (dma_fence_is_signaled(fence)) 2f453ed4038526 Maarten Lankhorst 2014-04-02 68 goto signaled; 2f453ed4038526 Maarten Lankhorst 2014-04-02 69 2f453ed4038526 Maarten Lankhorst 2014-04-02 70 qxl_io_notify_oom(qdev); 0b11c8d52de8c7 Gerd Hoffmann 2021-02-03 71 if (!wait_event_timeout(qdev->release_event, 0b11c8d52de8c7 Gerd Hoffmann 2021-02-03 72 dma_fence_is_signaled(fence), 0b11c8d52de8c7 Gerd Hoffmann 2021-02-03 73 timeout)) 2f453ed4038526 Maarten Lankhorst 2014-04-02 74 return 0; 2f453ed4038526 Maarten Lankhorst 2014-04-02 75 2f453ed4038526 Maarten Lankhorst 2014-04-02 76 signaled: 2f453ed4038526 Maarten Lankhorst 2014-04-02 77 cur = jiffies; 2f453ed4038526 Maarten Lankhorst 2014-04-02 78 if (time_after(cur, end)) 2f453ed4038526 Maarten Lankhorst 2014-04-02 79 return 0; 2f453ed4038526 Maarten Lankhorst 2014-04-02 80 return end - cur; 2f453ed4038526 Maarten Lankhorst 2014-04-02 81 } 2f453ed4038526 Maarten Lankhorst 2014-04-02 82 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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