tree: https://android.googlesource.com/kernel/common android12-5.10 head: d015c6200384c0d99457f71c8f11eac85decbfb5 commit: 1b4aca7d82ae9b40145484fa09ceab38a6a06062 [1/2] ANDROID: arm64/mm: implement {populate/depopulate}_range_driver_managed config: arm64-randconfig-r036-20210120 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 22b68440e1647e16b5ee24b924986207173c02d1) 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 arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu git remote add android-common https://android.googlesource.com/kernel/common git fetch --no-tags android-common android12-5.10 git checkout 1b4aca7d82ae9b40145484fa09ceab38a6a06062 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): __func__, start); ^~~~~ include/linux/printk.h:343:33: note: expanded from macro 'pr_err' printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) ~~~ ^~~~~~~~~~~ int check_range_driver_managed(u64 start, u64 size, const char *resource_name) ^ arch/arm64/mm/mmu.c:1499:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int check_range_driver_managed(u64 start, u64 size, const char *resource_name) ^ static 2 warnings generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for USB_PHY Depends on USB_SUPPORT Selected by - GKI_HIDDEN_USB_CONFIGS WARNING: unmet direct dependencies detected for DRM_MIPI_DSI Depends on HAS_IOMEM && DRM Selected by - GKI_HIDDEN_DRM_CONFIGS WARNING: unmet direct dependencies detected for DRM_KMS_CMA_HELPER Depends on HAS_IOMEM && DRM Selected by - GKI_HIDDEN_DRM_CONFIGS WARNING: unmet direct dependencies detected for HVC_DRIVER Depends on TTY Selected by - GKI_HIDDEN_VIRTUAL_CONFIGS WARNING: unmet direct dependencies detected for DMA_VIRTUAL_CHANNELS Depends on DMADEVICES Selected by - GKI_HIDDEN_SND_SOC_CONFIGS WARNING: unmet direct dependencies detected for DRM_GEM_CMA_HELPER Depends on HAS_IOMEM && DRM Selected by - GKI_HIDDEN_DRM_CONFIGS vim +1510 arch/arm64/mm/mmu.c 1498 1500 { 1501 struct mem_section *ms; 1502 unsigned long pfn = __phys_to_pfn(start); 1503 unsigned long end_pfn = __phys_to_pfn(start + size); 1504 struct resource *res; 1505 unsigned long flags; 1506 1507 res = lookup_resource(&iomem_resource, start); 1508 if (!res) { 1509 pr_err("%s: couldn't find memory resource for start 0x%lx\n", 1511 return -EINVAL; 1512 } 1513 1514 flags = res->flags; 1515 1516 if (!(flags & IORESOURCE_SYSRAM_DRIVER_MANAGED) || 1517 strstr(resource_name, "System RAM (") != resource_name) 1518 return -EINVAL; 1519 1520 for (; pfn < end_pfn; pfn += PAGES_PER_SECTION) { 1521 ms = __pfn_to_section(pfn); 1522 if (early_section(ms)) 1523 return -EINVAL; 1524 } 1525 1526 return 0; 1527 } 1528 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org