Hi Chris, kernel test robot noticed the following build warnings: [auto build test WARNING on bluetooth-next/master] [also build test WARNING on next-20240607] [cannot apply to bluetooth/master linus/master v6.10-rc2] [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/Chris-Lu/Bluetooth-net-add-hci_iso_hdr-function-for-iso-data/20240606-194619 base: https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git master patch link: https://lore.kernel.org/r/20240606114321.30515-5-chris.lu%40mediatek.com patch subject: [PATCH v4 4/4] Bluetooth: btusb: mediatek: add ISO data transmission functions config: arm-omap2plus_defconfig (https://download.01.org/0day-ci/archive/20240608/202406081451.S72dkwTp-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240608/202406081451.S72dkwTp-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/202406081451.S72dkwTp-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/bluetooth/btusb.c:28: drivers/bluetooth/btmtk.h: In function 'btmtk_isopkt_pad': >> drivers/bluetooth/btmtk.h:259:16: warning: returning 'void *' from a function with return type 'int' makes integer from pointer without a cast [-Wint-conversion] 259 | return ERR_PTR(-EOPNOTSUPP); | ^~~~~~~~~~~~~~~~~~~~ vim +259 drivers/bluetooth/btmtk.h 256 257 static int btmtk_isopkt_pad(struct hci_dev *hdev, struct sk_buff *skb) 258 { > 259 return ERR_PTR(-EOPNOTSUPP); 260 } 261 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
