Hi Dmitry, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on tegra/for-next] [also build test WARNING on v4.15-rc4 next-20171220] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Dmitry-Osipenko/drm-tegra-gem-Correct-iommu_map_sg-error-checking/20171220-123700 base: https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux.git for-next config: arm64-allmodconfig (attached as .config) compiler: aarch64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=arm64 All warnings (new ones prefixed by >>): drivers/gpu/drm/tegra/gem.c: In function 'tegra_bo_iommu_map': >> drivers/gpu/drm/tegra/gem.c:131:58: warning: format '%zd' expects argument of type 'signed size_t', but argument 3 has type 'int' [-Wformat=] dev_err(tegra->drm->dev, "out of I/O virtual memory: %zd\n", ~~^ %d vim +131 drivers/gpu/drm/tegra/gem.c de2ba664c drivers/gpu/host1x/drm/gem.c Arto Merilainen 2013-03-22 113 df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 114 static int tegra_bo_iommu_map(struct tegra_drm *tegra, struct tegra_bo *bo) df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 115 { df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 116 int prot = IOMMU_READ | IOMMU_WRITE; e1ad592fa drivers/gpu/drm/tegra/gem.c Dmitry Osipenko 2017-12-17 117 int err; df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 118 df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 119 if (bo->mm) df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 120 return -EBUSY; df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 121 df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 122 bo->mm = kzalloc(sizeof(*bo->mm), GFP_KERNEL); df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 123 if (!bo->mm) df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 124 return -ENOMEM; df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 125 347ad49d3 drivers/gpu/drm/tegra/gem.c Thierry Reding 2017-03-09 126 mutex_lock(&tegra->mm_lock); 347ad49d3 drivers/gpu/drm/tegra/gem.c Thierry Reding 2017-03-09 127 4e64e5539 drivers/gpu/drm/tegra/gem.c Chris Wilson 2017-02-02 128 err = drm_mm_insert_node_generic(&tegra->mm, 4e64e5539 drivers/gpu/drm/tegra/gem.c Chris Wilson 2017-02-02 129 bo->mm, bo->gem.size, PAGE_SIZE, 0, 0); df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 130 if (err < 0) { df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 @131 dev_err(tegra->drm->dev, "out of I/O virtual memory: %zd\n", df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 132 err); 347ad49d3 drivers/gpu/drm/tegra/gem.c Thierry Reding 2017-03-09 133 goto unlock; df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 134 } df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 135 df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 136 bo->paddr = bo->mm->start; df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 137 e1ad592fa drivers/gpu/drm/tegra/gem.c Dmitry Osipenko 2017-12-17 138 bo->size = iommu_map_sg(tegra->domain, bo->paddr, bo->sgt->sgl, df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 139 bo->sgt->nents, prot); e1ad592fa drivers/gpu/drm/tegra/gem.c Dmitry Osipenko 2017-12-17 140 if (!bo->size) { e1ad592fa drivers/gpu/drm/tegra/gem.c Dmitry Osipenko 2017-12-17 141 dev_err(tegra->drm->dev, "failed to map buffer\n"); e1ad592fa drivers/gpu/drm/tegra/gem.c Dmitry Osipenko 2017-12-17 142 err = -ENOMEM; df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 143 goto remove; df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 144 } df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 145 347ad49d3 drivers/gpu/drm/tegra/gem.c Thierry Reding 2017-03-09 146 mutex_unlock(&tegra->mm_lock); 347ad49d3 drivers/gpu/drm/tegra/gem.c Thierry Reding 2017-03-09 147 df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 148 return 0; df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 149 df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 150 remove: df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 151 drm_mm_remove_node(bo->mm); 347ad49d3 drivers/gpu/drm/tegra/gem.c Thierry Reding 2017-03-09 152 unlock: 347ad49d3 drivers/gpu/drm/tegra/gem.c Thierry Reding 2017-03-09 153 mutex_unlock(&tegra->mm_lock); df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 154 kfree(bo->mm); df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 155 return err; df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 156 } df06b759f drivers/gpu/drm/tegra/gem.c Thierry Reding 2014-06-26 157 :::::: The code at line 131 was first introduced by commit :::::: df06b759f2cf4690fa9991edb1504ba39932b2bb drm/tegra: Add IOMMU support :::::: TO: Thierry Reding <treding@xxxxxxxxxx> :::::: CC: Thierry Reding <treding@xxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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