tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 6a67952a484c93a1fcde2126e6a9b553b8022b03 commit: f12801f364f23453a32fe7b4e66ca080156bc58a [3415/3415] iommu/ummu: Add UMMU cache flush interfaces config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20251203/202512031727.TzoJZqMA-lkp@i...) compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251203/202512031727.TzoJZqMA-lkp@i...) 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/202512031727.TzoJZqMA-lkp@intel.com/ All warnings (new ones prefixed by >>):

...

drivers/iommu/hisilicon/flush.c:170:13: warning: stack frame size (2240) exceeds limit (2048) in 'ummu_tlbi_range' [-Wframe-larger-than] 170 | static void ummu_tlbi_range(struct ummu_tlb_range *range, bool leaf, | ^ 1 warning generated.

vim +/ummu_tlbi_range +170 drivers/iommu/hisilicon/flush.c 169

170 static void ummu_tlbi_range(struct ummu_tlb_range *range, bool leaf, 171 struct ummu_domain *domain) 172 { 173 struct ummu_mcmdq_ent cmd = {0}; 174 int err; 175 176 err = ummu_domain_tlbi_cmd(domain, UMMU_TLBI_SCOPE_RNG, UMMU_TLBI_SCENE_DMA, &cmd); 177 if (err) 178 return; 179 180 cmd.tlbi.leaf = leaf; 181 __ummu_tlbi_range(&cmd, range, domain); 182 } 183

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