Hi, kernel test robot noticed the following build warnings: [auto build test WARNING on bluetooth/master] [also build test WARNING on bluetooth-next/master linus/master v6.9-rc7 next-20240508] [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/sean-wang-kernel-org/Bluetooth-btmtk-apply-the-common-btmtk_fw_get_filename/20240508-032333 base: https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git master patch link: https://lore.kernel.org/r/965cd14922aea67e2750ff2c2ecad773f8ba485a.1715109394.git.sean.wang%40kernel.org patch subject: [PATCH v4 1/5] Bluetooth: btmtk: add the function to get the fw name config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20240508/202405081828.e6IMNKPn-lkp@xxxxxxxxx/config) compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 0ab4458df0688955620b72cc2c72a32dffad3615) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240508/202405081828.e6IMNKPn-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/202405081828.e6IMNKPn-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/bluetooth/btmtk.c:8: In file included from include/net/bluetooth/bluetooth.h:30: In file included from include/net/sock.h:38: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: 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/bluetooth/btmtk.c:8: In file included from include/net/bluetooth/bluetooth.h:30: In file included from include/net/sock.h:38: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: 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/bluetooth/btmtk.c:8: In file included from include/net/bluetooth/bluetooth.h:30: In file included from include/net/sock.h:38: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: 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); | ~~~~~~~~~~ ^ In file included from drivers/bluetooth/btmtk.c:8: In file included from include/net/bluetooth/bluetooth.h:30: In file included from include/net/sock.h:46: In file included from include/linux/netdevice.h:38: In file included from include/net/net_namespace.h:43: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:10: 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_" | ~~~~~~~~~~~ ^ ~~~ >> drivers/bluetooth/btmtk.c:114:3: warning: 'snprintf' will always be truncated; specified size is 4, but format string expands to at least 41 [-Wformat-truncation] 114 | snprintf(buf, sizeof(size), | ^ 8 warnings generated. vim +/snprintf +114 drivers/bluetooth/btmtk.c 105 106 void btmtk_fw_get_filename(char *buf, size_t size, u32 dev_id, u32 fw_ver, 107 u32 fw_flavor) 108 { 109 if (dev_id == 0x7925) 110 snprintf(buf, size, 111 "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", 112 dev_id & 0xffff, dev_id & 0xffff, (fw_ver & 0xff) + 1); 113 else if (dev_id == 0x7961 && fw_flavor) > 114 snprintf(buf, sizeof(size), 115 "mediatek/BT_RAM_CODE_MT%04x_1a_%x_hdr.bin", 116 dev_id & 0xffff, (fw_ver & 0xff) + 1); 117 else 118 snprintf(buf, size, 119 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", 120 dev_id & 0xffff, (fw_ver & 0xff) + 1); 121 } 122 EXPORT_SYMBOL_GPL(btmtk_fw_get_filename); 123 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
