Hi Ming, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linuxtv-media/master] [also build test WARNING on robh/for-next v5.14-rc5] [cannot apply to shawnguo/for-next next-20210811] [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] url: https://github.com/0day-ci/linux/commits/Ming-Qian/imx8q-video-decoder-encoder-driver/20210811-164741 base: git://linuxtv.org/media_tree.git master config: arm64-allyesconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 10.3.0 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://github.com/0day-ci/linux/commit/24cb9d25f8f3e58921074286fe42eedc10aa1214 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Ming-Qian/imx8q-video-decoder-encoder-driver/20210811-164741 git checkout 24cb9d25f8f3e58921074286fe42eedc10aa1214 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/media/platform/imx/vpu-8q/vpu_imx8q.c:139:5: warning: no previous prototype for 'vpu_imx8q_get_fuse' [-Wmissing-prototypes] 139 | u32 vpu_imx8q_get_fuse(void) | ^~~~~~~~~~~~~~~~~~ vim +/vpu_imx8q_get_fuse +139 drivers/media/platform/imx/vpu-8q/vpu_imx8q.c 137 138 #ifdef CONFIG_IMX_SCU > 139 u32 vpu_imx8q_get_fuse(void) 140 { 141 static u32 fuse_got; 142 struct imx_sc_ipc *ipc; 143 struct vpu_sc_msg_misc msg; 144 struct imx_sc_rpc_msg *hdr = &msg.hdr; 145 int ret; 146 147 if (fuse_got) 148 return imx8q_fuse; 149 150 ret = imx_scu_get_handle(&ipc); 151 if (ret) { 152 vpu_err("error: scu get handle fail: %d\n", ret); 153 return 0; 154 } 155 156 hdr->ver = IMX_SC_RPC_VERSION; 157 hdr->svc = IMX_SC_RPC_SVC_MISC; 158 hdr->func = IMX_SC_MISC_FUNC_OTP_FUSE_READ; 159 hdr->size = 2; 160 161 msg.word = VPU_DISABLE_BITS; 162 163 ret = imx_scu_call_rpc(ipc, &msg, true); 164 if (ret) 165 return 0; 166 167 imx8q_fuse = msg.word; 168 fuse_got = 1; 169 vpu_dbg(LVL_INFO, "imx8q fuse = 0x%x\n", imx8q_fuse); 170 return imx8q_fuse; 171 } 172 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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