Hi Matti, kernel test robot noticed the following build warnings: [auto build test WARNING on a61ff7eac77e86de828fe28c4e42b8ae9ec2b195] url: https://github.com/intel-lab-lkp/linux/commits/Matti-Vaittinen/iio-accel-kx022a-Use-cleanup-h-helpers/20241128-170626 base: a61ff7eac77e86de828fe28c4e42b8ae9ec2b195 patch link: https://lore.kernel.org/r/9b63813ecf10b1cd0126cb950bc09514c4287b9a.1732783834.git.mazziesaccount%40gmail.com patch subject: [PATCH v3 7/7] iio: accel: kx022a: align with subsystem way config: loongarch-allyesconfig (https://download.01.org/0day-ci/archive/20241129/202411290107.KXHPQXRf-lkp@xxxxxxxxx/config) compiler: loongarch64-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241129/202411290107.KXHPQXRf-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/202411290107.KXHPQXRf-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/iio/accel/kionix-kx022a.c: In function 'kx022a_write_raw': drivers/iio/accel/kionix-kx022a.c:507:9: error: implicit declaration of function 'if_not_cond_guard' [-Wimplicit-function-declaration] 507 | if_not_cond_guard(iio_claim_direct_try, idev) | ^~~~~~~~~~~~~~~~~ drivers/iio/accel/kionix-kx022a.c:507:27: error: 'iio_claim_direct_try' undeclared (first use in this function); did you mean 'class_iio_claim_direct_try_t'? 507 | if_not_cond_guard(iio_claim_direct_try, idev) | ^~~~~~~~~~~~~~~~~~~~ | class_iio_claim_direct_try_t drivers/iio/accel/kionix-kx022a.c:507:27: note: each undeclared identifier is reported only once for each function it appears in drivers/iio/accel/kionix-kx022a.c:507:54: error: expected ';' before 'return' 507 | if_not_cond_guard(iio_claim_direct_try, idev) | ^ | ; 508 | return -EBUSY; | ~~~~~~ In file included from drivers/iio/accel/kionix-kx022a.c:8: >> include/linux/cleanup.h:308:9: warning: this statement may fall through [-Wimplicit-fallthrough=] 308 | for (CLASS(_name, scope)(args), \ | ^~~ drivers/iio/accel/kionix-kx022a.c:521:17: note: in expansion of macro 'scoped_guard' 521 | scoped_guard(mutex, &data->mutex) { | ^~~~~~~~~~~~ drivers/iio/accel/kionix-kx022a.c:532:9: note: here 532 | case IIO_CHAN_INFO_SCALE: | ^~~~ vim +308 include/linux/cleanup.h e4ab322fbaaaf8 Peter Zijlstra 2023-09-17 306 54da6a0924311c Peter Zijlstra 2023-05-26 307 #define scoped_guard(_name, args...) \ 54da6a0924311c Peter Zijlstra 2023-05-26 @308 for (CLASS(_name, scope)(args), \ e4ab322fbaaaf8 Peter Zijlstra 2023-09-17 309 *done = NULL; __guard_ptr(_name)(&scope) && !done; done = (void *)1) e4ab322fbaaaf8 Peter Zijlstra 2023-09-17 310 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
