[kbuild-all] sound/virtio/virtio_ctl_msg.c:70: warning: expecting prototype for virtsnd_ctl_msg_request(). Prototype was for virtsnd_ctl_msg_response() instead

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: fd0aa1a4567d0f09e1bfe367a950b004f99ac290 commit: 9d45e514da88ff74fc24ffb34e7d6eb92576440b ALSA: virtio: handling control messages date: 3 months ago config: nios2-randconfig-r005-20210618 (attached as .config) compiler: nios2-linux-gcc (GCC) 9.3.0 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 # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 9d45e514da88ff74fc24ffb34e7d6eb92576440b # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nios2 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All error/warnings (new ones prefixed by >>): -- nios2-linux-ld: drivers/net/ethernet/micrel/ks8851_common.o: in function `ks8851_probe_common': vim +70 sound/virtio/virtio_ctl_msg.c 62 63 /** 64 * virtsnd_ctl_msg_request() - Get a pointer to the response header. 65 * @msg: Control message. 66 * 67 * Context: Any context. 68 */ 69 void *virtsnd_ctl_msg_response(struct virtio_snd_msg *msg) 71 return sg_virt(&msg->sg_response); 72 } 73 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org