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Wysocki" , Danilo Krummrich , Johan Hovold , Hans Verkuil , Laurent Pinchart , Kees Cook , Len Brown , Rob Herring , Saravana Kannan , Linus Walleij Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-acpi@vger.kernel.org, driver-core@lists.linux.dev, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org, devicetree@vger.kernel.org, linux-gpio@vger.kernel.org Subject: Re: [PATCH 9/9] gpio: shared: generalize most code to firmware nodes Message-ID: <202611051423.Dk3ycCJc-lkp@intel.com> References: <20261104-fwnode-for-each-prop-v1-9-6e28fe1c72c4@oss.qualcomm.com> X-Mailing-List: driver-core@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261104-fwnode-for-each-prop-v1-9-6e28fe1c72c4@oss.qualcomm.com> Hi Bartosz, kernel test robot noticed the following build warnings: [auto build test WARNING on 6628e7d4c6b25c8d18f1345e3a20d21829aae7e4] url: https://github.com/intel-lab-lkp/linux/commits/Bartosz-Golaszewski/device-property-fix-fwnode_name_eq-for-empty-node-names/20261104-150343 base: 6628e7d4c6b25c8d18f1345e3a20d21829aae7e4 patch link: https://lore.kernel.org/r/20261104-fwnode-for-each-prop-v1-9-6e28fe1c72c4%40oss.qualcomm.com patch subject: [PATCH 9/9] gpio: shared: generalize most code to firmware nodes config: um-randconfig-1000-20261105 (https://download.01.org/0day-ci/archive/20261105/202611051423.Dk3ycCJc-lkp@intel.com/config) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) rustc: rustc 1.96.0 (ac68faa20 2026-05-25) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261105/202611051423.Dk3ycCJc-lkp@intel.com/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 | Closes: https://lore.kernel.org/oe-kbuild-all/202611051423.Dk3ycCJc-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from drivers/gpio/gpiolib-shared.c:28: In file included from drivers/gpio/gpiolib.h:16: In file included from include/linux/gpio/driver.h:8: In file included from include/linux/irqchip/chained_irq.h:10: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:12: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:1209:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1209 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ >> drivers/gpio/gpiolib-shared.c:300:12: warning: function 'gpio_shared_fwnode_traverse' is not needed and will not be emitted [-Wunneeded-internal-declaration] 300 | static int gpio_shared_fwnode_traverse(struct fwnode_handle *curr) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ 2 warnings generated. vim +/gpio_shared_fwnode_traverse +300 drivers/gpio/gpiolib-shared.c 299 > 300 static int gpio_shared_fwnode_traverse(struct fwnode_handle *curr) 301 { 302 int ret; 303 304 if (gpio_shared_fwnode_ignore(curr)) 305 return 0; 306 307 ret = gpio_shared_fwnode_scan_properties(curr); 308 if (ret) 309 return ret; 310 311 fwnode_for_each_child_node_scoped(curr, child) { 312 ret = gpio_shared_fwnode_traverse(child); 313 if (ret) 314 return ret; 315 } 316 317 return 0; 318 } 319 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki