From: kernel test robot <lkp@intel.com>
To: Boris Brezillon <bbrezillon@kernel.org>,
Steven Price <steven.price@arm.com>,
Liviu Dudau <liviu.dudau@arm.com>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
Dmitry Osipenko <dmitry.osipenko@collabora.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
Akash Goel <akash.goel@arm.com>, Chia-I Wu <olvaffe@gmail.com>,
Rob Clark <robin.clark@oss.qualcomm.com>,
Dmitry Baryshkov <lumag@kernel.org>,
Abhinav Kumar <abhinav.kumar@linux.dev>,
Jessica Zhang <jesszhan0024@gmail.com>,
Sean Paul <sean@poorly.run>,
Marijn Suijten <marijn.suijten@somainline.org>,
linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3] drm/gem: Make the GEM LRU lock part of drm_device
Date: Thu, 14 May 2026 11:56:05 +0800 [thread overview]
Message-ID: <202605141138.kI3vechU-lkp@intel.com> (raw)
In-Reply-To: <20260512-panthor-shrinker-fixes-v3-1-3bf066259471@collabora.com>
Hi Boris,
kernel test robot noticed the following build warnings:
[auto build test WARNING on b2ed01e7ad3de80333e9b962a44024b094bc0b2b]
url: https://github.com/intel-lab-lkp/linux/commits/Boris-Brezillon/drm-gem-Make-the-GEM-LRU-lock-part-of-drm_device/20260514-051749
base: b2ed01e7ad3de80333e9b962a44024b094bc0b2b
patch link: https://lore.kernel.org/r/20260512-panthor-shrinker-fixes-v3-1-3bf066259471%40collabora.com
patch subject: [PATCH v3] drm/gem: Make the GEM LRU lock part of drm_device
config: arm-randconfig-002-20260514 (https://download.01.org/0day-ci/archive/20260514/202605141138.kI3vechU-lkp@intel.com/config)
compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 5bac06718f502014fade905512f1d26d578a18f3)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260514/202605141138.kI3vechU-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202605141138.kI3vechU-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/gpu/drm/msm/msm_gem.c:827:26: warning: unused variable 'priv' [-Wunused-variable]
827 | struct msm_drm_private *priv = obj->dev->dev_private;
| ^~~~
1 warning generated.
vim +/priv +827 drivers/gpu/drm/msm/msm_gem.c
4cd33c48ea25ba1 Rob Clark 2016-05-17 823
599089c6af68300 Rob Clark 2020-10-23 824 void msm_gem_purge(struct drm_gem_object *obj)
68209390f116034 Rob Clark 2016-05-17 825 {
68209390f116034 Rob Clark 2016-05-17 826 struct drm_device *dev = obj->dev;
6c7c8fb863f7c31 Rob Clark 2023-03-20 @827 struct msm_drm_private *priv = obj->dev->dev_private;
68209390f116034 Rob Clark 2016-05-17 828 struct msm_gem_object *msm_obj = to_msm_bo(obj);
68209390f116034 Rob Clark 2016-05-17 829
d4d7d3630d703ff Rob Clark 2022-08-02 830 msm_gem_assert_locked(obj);
90643a24a7bfbe9 Rob Clark 2021-04-05 831 GEM_WARN_ON(!is_purgeable(msm_obj));
68209390f116034 Rob Clark 2016-05-17 832
20d0ae2f8c72e36 Rob Clark 2021-04-05 833 /* Get rid of any iommu mapping(s): */
0b4339c55ef59ff Rob Clark 2025-06-29 834 put_iova_spaces(obj, NULL, false, "purge");
0e08270a1f01bce Sushmita Susheelendra 2017-06-13 835
599089c6af68300 Rob Clark 2020-10-23 836 msm_gem_vunmap(obj);
68209390f116034 Rob Clark 2016-05-17 837
81d4d597d4faadb Rob Clark 2021-04-05 838 drm_vma_node_unmap(&obj->vma_node, dev->anon_inode->i_mapping);
81d4d597d4faadb Rob Clark 2021-04-05 839
68209390f116034 Rob Clark 2016-05-17 840 put_pages(obj);
68209390f116034 Rob Clark 2016-05-17 841
c20ad1ee88c074c Boris Brezillon 2026-05-12 842 mutex_lock(&dev->gem_lru_mutex);
6c7c8fb863f7c31 Rob Clark 2023-03-20 843 /* A one-way transition: */
68209390f116034 Rob Clark 2016-05-17 844 msm_obj->madv = __MSM_MADV_PURGED;
c20ad1ee88c074c Boris Brezillon 2026-05-12 845 mutex_unlock(&dev->gem_lru_mutex);
68209390f116034 Rob Clark 2016-05-17 846
68209390f116034 Rob Clark 2016-05-17 847 drm_gem_free_mmap_offset(obj);
68209390f116034 Rob Clark 2016-05-17 848
68209390f116034 Rob Clark 2016-05-17 849 /* Our goal here is to return as much of the memory as
68209390f116034 Rob Clark 2016-05-17 850 * is possible back to the system as we are called from OOM.
68209390f116034 Rob Clark 2016-05-17 851 * To do this we must instruct the shmfs to drop all of its
68209390f116034 Rob Clark 2016-05-17 852 * backing pages, *now*.
68209390f116034 Rob Clark 2016-05-17 853 */
68209390f116034 Rob Clark 2016-05-17 854 shmem_truncate_range(file_inode(obj->filp), 0, (loff_t)-1);
68209390f116034 Rob Clark 2016-05-17 855
68209390f116034 Rob Clark 2016-05-17 856 invalidate_mapping_pages(file_inode(obj->filp)->i_mapping,
68209390f116034 Rob Clark 2016-05-17 857 0, (loff_t)-1);
68209390f116034 Rob Clark 2016-05-17 858 }
68209390f116034 Rob Clark 2016-05-17 859
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next prev parent reply other threads:[~2026-05-14 3:56 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-12 6:59 [PATCH v3] drm/gem: Make the GEM LRU lock part of drm_device Boris Brezillon
2026-05-12 17:13 ` Chia-I Wu
2026-05-14 0:55 ` kernel test robot
2026-05-14 3:56 ` kernel test robot [this message]
2026-05-14 15:44 ` Steven Price
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