Hi Andreas, kernel test robot noticed the following build errors: [auto build test ERROR on bluetooth/master] [also build test ERROR on bluetooth-next/master char-misc/char-misc-testing char-misc/char-misc-next char-misc/char-misc-linus linus/master v6.10-rc2 next-20240604] [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/Andreas-Kemnade/gnss-Add-AI2-protocol-used-by-some-TI-combo-chips/20240603-224753 base: https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git master patch link: https://lore.kernel.org/r/20240603144400.2195564-4-andreas%40kemnade.info patch subject: [PATCH v3 3/4] gnss: Add driver for AI2 protocol config: hexagon-allyesconfig (https://download.01.org/0day-ci/archive/20240604/202406041854.1Ad8rnRn-lkp@xxxxxxxxx/config) compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project d7d2d4f53fc79b4b58e8d8d08151b577c3699d4a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240604/202406041854.1Ad8rnRn-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/202406041854.1Ad8rnRn-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from drivers/gnss/ai2.c:9: In file included from include/linux/gnss.h:13: In file included from include/linux/kfifo.h:42: In file included from include/linux/scatterlist.h:8: In file included from include/linux/mm.h:2210: include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ In file included from drivers/gnss/ai2.c:9: In file included from include/linux/gnss.h:13: In file included from include/linux/kfifo.h:42: In file included from include/linux/scatterlist.h:9: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 547 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) | ^ In file included from drivers/gnss/ai2.c:9: In file included from include/linux/gnss.h:13: In file included from include/linux/kfifo.h:42: In file included from include/linux/scatterlist.h:9: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ In file included from drivers/gnss/ai2.c:9: In file included from include/linux/gnss.h:13: In file included from include/linux/kfifo.h:42: In file included from include/linux/scatterlist.h:9: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 584 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ >> drivers/gnss/ai2.c:340:6: error: call to undeclared function 'get_unaligned_le16'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 340 | if (get_unaligned_le16(data + i) != sum) { | ^ 7 warnings and 1 error generated. vim +/get_unaligned_le16 +340 drivers/gnss/ai2.c 324 325 /* do some sanity checks and split frame into packets */ 326 static void process_ai2_frame(struct ai2_device *ai2dev) 327 { 328 u16 sum; 329 int i; 330 u8 *head; 331 u8 *data; 332 333 sum = 0; 334 data = ai2dev->recv_skb->data; 335 for (i = 0; i < ai2dev->recv_skb->len - 2; i++) 336 sum += data[i]; 337 338 print_hex_dump_bytes("ai2 frame: ", DUMP_PREFIX_OFFSET, data, ai2dev->recv_skb->len); 339 > 340 if (get_unaligned_le16(data + i) != sum) { 341 dev_dbg(ai2dev->dev, 342 "checksum error in reception, dropping frame\n"); 343 return; 344 } 345 346 /* reached if byte 1 in the command packet is set to 1 */ 347 if (data[1] == AI2_ACK) 348 return; 349 350 head = skb_pull(ai2dev->recv_skb, 2); /* drop frame start marker */ 351 while (head && (ai2dev->recv_skb->len >= 3)) { 352 u8 cmd; 353 u16 pktlen; 354 355 cmd = head[0]; 356 pktlen = get_unaligned_le16(head + 1); 357 data = skb_pull(ai2dev->recv_skb, 3); 358 if (!data) 359 break; 360 361 if (pktlen > ai2dev->recv_skb->len) 362 break; 363 364 head = skb_pull(ai2dev->recv_skb, pktlen); 365 366 process_ai2_packet(ai2dev, cmd, data, pktlen); 367 } 368 } 369 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
