Re: [PATCH v11 4/6] PCI: dwc: Use common PCI host bridge APIs for finding the capabilities
From: kernel test robot
Date: Fri May 09 2025 - 08:50:26 EST
Hi Hans,
kernel test robot noticed the following build warnings:
[auto build test WARNING on ca91b9500108d4cf083a635c2e11c884d5dd20ea]
url: https://github.com/intel-lab-lkp/linux/commits/Hans-Zhang/PCI-Introduce-generic-bus-config-read-helper-function/20250506-004221
base: ca91b9500108d4cf083a635c2e11c884d5dd20ea
patch link: https://lore.kernel.org/r/20250505163420.198012-5-18255117159%40163.com
patch subject: [PATCH v11 4/6] PCI: dwc: Use common PCI host bridge APIs for finding the capabilities
config: parisc-randconfig-r063-20250509 (https://download.01.org/0day-ci/archive/20250509/202505092036.Sw8SstSY-lkp@xxxxxxxxx/config)
compiler: hppa-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250509/202505092036.Sw8SstSY-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202505092036.Sw8SstSY-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
In function 'dw_pcie_read_cfg',
inlined from 'dw_pcie_find_capability' at drivers/pci/controller/dwc/pcie-designware.c:219:9:
>> drivers/pci/controller/dwc/pcie-designware.c:212:14: warning: write of 32-bit data outside the bound of destination object, data truncated into 8-bit [-Wextra]
212 | *val = dw_pcie_read_dbi(pci, where, size);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +212 drivers/pci/controller/dwc/pcie-designware.c
207
208 static int dw_pcie_read_cfg(void *priv, int where, int size, u32 *val)
209 {
210 struct dw_pcie *pci = priv;
211
> 212 *val = dw_pcie_read_dbi(pci, where, size);
213
214 return PCIBIOS_SUCCESSFUL;
215 }
216
--
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