Hi "Marek, I love your patch! Perhaps something to improve: [auto build test WARNING on helgaas-pci/next] [also build test WARNING on next-20211208] [cannot apply to v5.16-rc4] [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/Marek-Beh-n/PCI-aardvark-control... base: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next config: arm64-randconfig-r022-20211207 (https://download.01.org/0day-ci/archive/20211208/202112082134.fNH8OE60-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 097a1cb1d5ebb3a0ec4bcaed8ba3ff6a8e33c00a) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/0day-ci/linux/commit/1d0822699fe4ce28186773b9186410166... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Marek-Beh-n/PCI-aardvark-controller-fixes-BATCH-4/20211208-141958 git checkout 1d0822699fe4ce28186773b9186410166165fd0f # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/pci/controller/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): dev_err_ratelimited(&pcie->pdev->dev, "unexpected MSI 0x%04hx\n", msi_idx); ~~~~~ ^~~~~~~ %04x include/linux/dev_printk.h:218:45: note: expanded from macro 'dev_err_ratelimited' dev_level_ratelimited(dev_err, dev, fmt, ##__VA_ARGS__) ~~~ ^~~~~~~~~~~ include/linux/dev_printk.h:208:25: note: expanded from macro 'dev_level_ratelimited' dev_level(dev, fmt, ##__VA_ARGS__); \ ~~~ ^~~~~~~~~~~ include/linux/dev_printk.h:144:65: note: expanded from macro 'dev_err' dev_printk_index_wrap(_dev_err, KERN_ERR, dev, dev_fmt(fmt), ##__VA_ARGS__) ~~~ ^~~~~~~~~~~ include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap' _p_func(dev, fmt, ##__VA_ARGS__); \ ~~~ ^~~~~~~~~~~ 1 warning generated. vim +1409 drivers/pci/controller/pci-aardvark.c 1393 1394 static void advk_pcie_handle_msi(struct advk_pcie *pcie) 1395 { 1396 u32 msi_val, msi_mask, msi_status, msi_idx; 1397 1398 msi_mask = advk_readl(pcie, PCIE_MSI_MASK_REG); 1399 msi_val = advk_readl(pcie, PCIE_MSI_STATUS_REG); 1400 msi_status = msi_val & ((~msi_mask) & PCIE_MSI_ALL_MASK); 1401 1402 for (msi_idx = 0; msi_idx < MSI_IRQ_NUM; msi_idx++) { 1403 if (!(BIT(msi_idx) & msi_status)) 1404 continue; 1405 1406 advk_writel(pcie, BIT(msi_idx), PCIE_MSI_STATUS_REG); 1407 1408 if (generic_handle_domain_irq(pcie->msi_inner_domain, msi_idx) == -EINVAL) 1410 } 1411 1412 advk_writel(pcie, PCIE_ISR0_MSI_INT_PENDING, 1413 PCIE_ISR0_REG); 1414 } 1415 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org