On Tue, Mar 30, 2021 at 11:55 AM Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> wrote: > > On Tue, Mar 30, 2021 at 11:26:17AM +0200, Bartosz Golaszewski wrote: > > On Tue, Mar 30, 2021 at 11:11 AM Andy Shevchenko > > <andriy.shevchenko@xxxxxxxxxxxxxxx> wrote: > > > On Tue, Mar 30, 2021 at 12:15:04PM +0800, kernel test robot wrote: > > > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > > > > head: 9d49ed9ca93b8c564033c1d6808017bc9052b5db > > > > commit: 3f0279eb9e3767f37939358a42054c226503233a [7313/8469] gpio: sim: new testing module > > > > config: arm-randconfig-r001-20210330 (attached as .config) > > > > compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 482283042f795ecc27838a3b2f76b5494991401c) > > > > 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 arm cross compiling tool for clang build > > > > # apt-get install binutils-arm-linux-gnueabi > > > > # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=3f0279eb9e3767f37939358a42054c226503233a > > > > git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > > > > git fetch --no-tags linux-next master > > > > git checkout 3f0279eb9e3767f37939358a42054c226503233a > > > > # save the attached .config to linux build tree > > > > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm > > > > > > > > If you fix the issue, kindly add following tag as appropriate > > > > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > > > > > > > All warnings (new ones prefixed by >>): > > > > > > > > >> drivers/gpio/gpio-sim.c:388:34: warning: unused variable 'gpio_sim_of_match' [-Wunused-const-variable] > > > > static const struct of_device_id gpio_sim_of_match[] = { > > > > ^ > > > > 1 warning generated. > > > > > > of_match_ptr() should be removed AFAIU the case. > > > > > > > I'm not using it though... Other drivers do the same thing as I did > > here. Can this be a false positive? > > Ah, you simply missed to add it to the platform driver structure. > > No, it's not false positive. > > > > > vim +/gpio_sim_of_match +388 drivers/gpio/gpio-sim.c > > > > > > > > 387 > > > > > 388 static const struct of_device_id gpio_sim_of_match[] = { > > > > 389 { .compatible = "gpio-simulator" }, > > > > 390 { } > > > > 391 }; > > > > 392 MODULE_DEVICE_TABLE(of, gpio_sim_of_match); > > -- > With Best Regards, > Andy Shevchenko > > Indeed. I'll send a patch. Bartosz
