Hi Douglas, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 6fd3ec5c7af58d5d6b598fba22ac387645af33f4 commit: b33752c300232d7f95dd9a4353947d0c9e6a0e52 HID: i2c-hid: Reorganize so ACPI and OF are separate modules date: 8 months ago config: arm64-randconfig-r016-20210927 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project dc6e8dfdfe7efecfda318d43a06fae18b40eb498) 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 # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b33752c300232d7f95dd9a4353947d0c9e6a0e52 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout b33752c300232d7f95dd9a4353947d0c9e6a0e52 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> drivers/hid/i2c-hid/i2c-hid-core.c:867:4: warning: format specifies type 'unsigned short' but the argument has type 'int' [-Wformat] le16_to_cpu(hdesc->bcdVersion)); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:112:32: note: expanded from macro 'dev_err' _dev_err(dev, dev_fmt(fmt), ##__VA_ARGS__) ~~~ ^~~~~~~~~~~ include/linux/byteorder/generic.h:91:21: note: expanded from macro 'le16_to_cpu' #define le16_to_cpu __le16_to_cpu ^ include/uapi/linux/byteorder/big_endian.h:36:26: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/uapi/linux/swab.h:105:2: note: expanded from macro '__swab16' (__builtin_constant_p((__u16)(x)) ? \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/hid/i2c-hid/i2c-hid-core.c:992:18: warning: format specifies type 'unsigned short' but the argument has type '__u32' (aka 'unsigned int') [-Wformat] client->name, hid->vendor, hid->product); ^~~~~~~~~~~ drivers/hid/i2c-hid/i2c-hid-core.c:992:31: warning: format specifies type 'unsigned short' but the argument has type '__u32' (aka 'unsigned int') [-Wformat] client->name, hid->vendor, hid->product); ^~~~~~~~~~~~ 3 warnings generated. vim +867 drivers/hid/i2c-hid/i2c-hid-core.c 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 836 0fe763c570ad27 drivers/hid/i2c-hid/i2c-hid.c Greg Kroah-Hartman 2012-12-21 837 static int i2c_hid_fetch_hid_descriptor(struct i2c_hid *ihid) 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 838 { 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 839 struct i2c_client *client = ihid->client; 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 840 struct i2c_hid_desc *hdesc = &ihid->hdesc; 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 841 unsigned int dsize; 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 842 int ret; 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 843 f58b8487bcc898 drivers/hid/i2c-hid/i2c-hid.c Archana Patni 2014-05-08 844 /* i2c hid fetch using a fixed descriptor size (30 bytes) */ 9ee3e06610fdb8 drivers/hid/i2c-hid/i2c-hid-core.c Julian Sax 2018-09-19 845 if (i2c_hid_get_dmi_i2c_hid_desc_override(client->name)) { 9ee3e06610fdb8 drivers/hid/i2c-hid/i2c-hid-core.c Julian Sax 2018-09-19 846 i2c_hid_dbg(ihid, "Using a HID descriptor override\n"); 9ee3e06610fdb8 drivers/hid/i2c-hid/i2c-hid-core.c Julian Sax 2018-09-19 847 ihid->hdesc = 9ee3e06610fdb8 drivers/hid/i2c-hid/i2c-hid-core.c Julian Sax 2018-09-19 848 *i2c_hid_get_dmi_i2c_hid_desc_override(client->name); 9ee3e06610fdb8 drivers/hid/i2c-hid/i2c-hid-core.c Julian Sax 2018-09-19 849 } else { f58b8487bcc898 drivers/hid/i2c-hid/i2c-hid.c Archana Patni 2014-05-08 850 i2c_hid_dbg(ihid, "Fetching the HID descriptor\n"); 9ee3e06610fdb8 drivers/hid/i2c-hid/i2c-hid-core.c Julian Sax 2018-09-19 851 ret = i2c_hid_command(client, &hid_descr_cmd, 9ee3e06610fdb8 drivers/hid/i2c-hid/i2c-hid-core.c Julian Sax 2018-09-19 852 ihid->hdesc_buffer, f58b8487bcc898 drivers/hid/i2c-hid/i2c-hid.c Archana Patni 2014-05-08 853 sizeof(struct i2c_hid_desc)); 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 854 if (ret) { f58b8487bcc898 drivers/hid/i2c-hid/i2c-hid.c Archana Patni 2014-05-08 855 dev_err(&client->dev, "hid_descr_cmd failed\n"); 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 856 return -ENODEV; 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 857 } 9ee3e06610fdb8 drivers/hid/i2c-hid/i2c-hid-core.c Julian Sax 2018-09-19 858 } 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 859 f58b8487bcc898 drivers/hid/i2c-hid/i2c-hid.c Archana Patni 2014-05-08 860 /* Validate the length of HID descriptor, the 4 first bytes: f58b8487bcc898 drivers/hid/i2c-hid/i2c-hid.c Archana Patni 2014-05-08 861 * bytes 0-1 -> length f58b8487bcc898 drivers/hid/i2c-hid/i2c-hid.c Archana Patni 2014-05-08 862 * bytes 2-3 -> bcdVersion (has to be 1.00) */ 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 863 /* check bcdVersion == 1.0 */ 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 864 if (le16_to_cpu(hdesc->bcdVersion) != 0x0100) { 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 865 dev_err(&client->dev, 9972dcc29cd1fc drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-12-04 866 "unexpected HID descriptor bcdVersion (0x%04hx)\n", 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 @867 le16_to_cpu(hdesc->bcdVersion)); 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 868 return -ENODEV; 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 869 } 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 870 f58b8487bcc898 drivers/hid/i2c-hid/i2c-hid.c Archana Patni 2014-05-08 871 /* Descriptor length should be 30 bytes as per the specification */ f58b8487bcc898 drivers/hid/i2c-hid/i2c-hid.c Archana Patni 2014-05-08 872 dsize = le16_to_cpu(hdesc->wHIDDescLength); f58b8487bcc898 drivers/hid/i2c-hid/i2c-hid.c Archana Patni 2014-05-08 873 if (dsize != sizeof(struct i2c_hid_desc)) { f58b8487bcc898 drivers/hid/i2c-hid/i2c-hid.c Archana Patni 2014-05-08 874 dev_err(&client->dev, "weird size of HID descriptor (%u)\n", 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 875 dsize); 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 876 return -ENODEV; 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 877 } 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 878 i2c_hid_dbg(ihid, "HID Descriptor: %*ph\n", dsize, ihid->hdesc_buffer); 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 879 return 0; 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 880 } 4a200c3b9a4024 drivers/hid/i2c-hid/i2c-hid.c Benjamin Tissoires 2012-11-12 881 :::::: The code at line 867 was first introduced by commit :::::: 4a200c3b9a40242652b5734630bdd0bcf3aca75f HID: i2c-hid: introduce HID over i2c specification implementation :::::: TO: Benjamin Tissoires :::::: CC: Jiri Kosina --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org