tree: baolu/iommu/next/20200514 head: 28c528ddc9501f8caba71dba375bd1d35403dd4b commit: 168de992164d4bdb99dfec8f035a0ff145d39a7e [13/16] iommu/vt-d: debugfs: Add support to show inv queue internals config: ia64-allmodconfig (attached as .config) compiler: ia64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 168de992164d4bdb99dfec8f035a0ff145d39a7e # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=ia64 If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): drivers/iommu/intel-iommu-debugfs.c: In function 'invalidation_queue_show': 421 | seq_printf(m, " Base: 0x%llxtHead: %lldtTail: %lldn", | ~~~^ | | | long long unsigned int | %lx vim +421 drivers/iommu/intel-iommu-debugfs.c 401 402 static int invalidation_queue_show(struct seq_file *m, void *unused) 403 { 404 struct dmar_drhd_unit *drhd; 405 struct intel_iommu *iommu; 406 unsigned long flags; 407 struct q_inval *qi; 408 int shift; 409 410 rcu_read_lock(); 411 for_each_active_iommu(iommu, drhd) { 412 qi = iommu->qi; 413 shift = qi_shift(iommu); 414 415 if (!qi || !ecap_qis(iommu->ecap)) 416 continue; 417 418 seq_printf(m, "Invalidation queue on IOMMU: %s\n", iommu->name); 419 420 raw_spin_lock_irqsave(&qi->q_lock, flags); 422 virt_to_phys(qi->desc), 423 dmar_readq(iommu->reg + DMAR_IQH_REG) >> shift, 424 dmar_readq(iommu->reg + DMAR_IQT_REG) >> shift); 425 invalidation_queue_entry_show(m, iommu); 426 raw_spin_unlock_irqrestore(&qi->q_lock, flags); 427 seq_putc(m, '\n'); 428 } 429 rcu_read_unlock(); 430 431 return 0; 432 } 433 DEFINE_SHOW_ATTRIBUTE(invalidation_queue); 434 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org