Hi Karunika, kernel test robot noticed the following build warnings:
[auto build test WARNING on drm-misc/drm-misc-next] [also build test WARNING on drm/drm-next drm-exynos/exynos-drm-next drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-tip/drm-tip linus/master v6.18-rc1 next-20251015] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Karunika-Choo/drm-panthor-Factor-out-GPU_ID-register-read-into-separate-function/20251014-174729 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20251014094337.1009601-7-karunika.choo%40arm.com patch subject: [PATCH v1 06/10] drm/panthor: Implement L2 power on/off via PWR_CONTROL config: arm-randconfig-r132-20251016 (https://download.01.org/0day-ci/archive/20251016/[email protected]/config) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 39f292ffa13d7ca0d1edff27ac8fd55024bb4d19) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251016/[email protected]/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 <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/panthor/panthor_pwr.c:153:13: warning: shift count >= width >> of type [-Wshift-count-overflow] 152 | ret = gpu_read64_poll_timeout(ptdev, pwrtrans_reg, val, | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 153 | !(PWR_ALL_CORES_MASK & val), 100, | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 154 | timeout_us); | ~~~~~~~~~~~ drivers/gpu/drm/panthor/panthor_pwr.c:26:29: note: expanded from macro 'PWR_ALL_CORES_MASK' 26 | #define PWR_ALL_CORES_MASK GENMASK(63, 0) | ^ include/linux/bits.h:51:24: note: expanded from macro 'GENMASK' 51 | #define GENMASK(h, l) GENMASK_TYPE(unsigned long, h, l) | ^ include/linux/bits.h:49:20: note: expanded from macro 'GENMASK_TYPE' 49 | type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h))))) | ^ drivers/gpu/drm/panthor/panthor_device.h:533:37: note: expanded from macro 'gpu_read64_poll_timeout' 533 | read_poll_timeout(gpu_read64, val, cond, delay_us, timeout_us, false, \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 534 | dev, reg) | ~~~~~~~~~ include/linux/iopoll.h:145:36: note: expanded from macro 'read_poll_timeout' 145 | poll_timeout_us((val) = op(args), cond, sleep_us, timeout_us, sleep_before_read) | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/iopoll.h:49:7: note: expanded from macro 'poll_timeout_us' 49 | if (cond) { \ | ^~~~ drivers/gpu/drm/panthor/panthor_pwr.c:260:13: warning: shift count >= width of type [-Wshift-count-overflow] 259 | ret = gpu_read64_poll_timeout(ptdev, PWR_STATUS, val, | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 260 | !(PWR_STATUS_RETRACT_PENDING & val), 0, | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 261 | PWR_RETRACT_TIMEOUT_US); | ~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/panthor/panthor_regs.h:249:40: note: expanded from macro 'PWR_STATUS_RETRACT_PENDING' 249 | #define PWR_STATUS_RETRACT_PENDING BIT(43) | ^ include/vdso/bits.h:7:26: note: expanded from macro 'BIT' 7 | #define BIT(nr) (UL(1) << (nr)) | ^ drivers/gpu/drm/panthor/panthor_device.h:533:37: note: expanded from macro 'gpu_read64_poll_timeout' 533 | read_poll_timeout(gpu_read64, val, cond, delay_us, timeout_us, false, \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 534 | dev, reg) | ~~~~~~~~~ include/linux/iopoll.h:145:36: note: expanded from macro 'read_poll_timeout' 145 | poll_timeout_us((val) = op(args), cond, sleep_us, timeout_us, sleep_before_read) | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/iopoll.h:49:7: note: expanded from macro 'poll_timeout_us' 49 | if (cond) { \ | ^~~~ 2 warnings generated. vim +153 drivers/gpu/drm/panthor/panthor_pwr.c 144 145 static int panthor_pwr_domain_wait_transition(struct panthor_device *ptdev, u32 domain, 146 u32 timeout_us) 147 { 148 u32 pwrtrans_reg = get_domain_pwrtrans_reg(domain); 149 u64 val; 150 int ret = 0; 151 152 ret = gpu_read64_poll_timeout(ptdev, pwrtrans_reg, val, > 153 !(PWR_ALL_CORES_MASK & val), 100, 154 timeout_us); 155 if (ret) { 156 drm_err(&ptdev->base, "%s domain power in transition, pwrtrans(0x%llx)", 157 get_domain_name(domain), val); 158 return ret; 159 } 160 161 return 0; 162 } 163 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
