tree: https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git renesas/i2c/new_client_device head: 0a8ad6d10e079730b0c2c63997db1be3b3fc804d commit: 45b61c664608299f60e3b139a4bde373f76d818c [5/28] drm/i2c/sil164: convert to use i2c_new_client_device() config: i386-allyesconfig (attached as .config) compiler: gcc-7 (Debian 7.5.0-5) 7.5.0 reproduce: git checkout 45b61c664608299f60e3b139a4bde373f76d818c # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/gpu//drm/i2c/sil164_drv.c: In function 'sil164_encoder_init': struct i2c_client *client; ^~~~~~ drivers/gpu//drm/i2c/sil164_drv.c:400:40: note: previous definition of 'client' was here sil164_encoder_init(struct i2c_client *client, ^~~~~~ vim +/client +405 drivers/gpu//drm/i2c/sil164_drv.c 398 399 static int 400 sil164_encoder_init(struct i2c_client *client, 401 struct drm_device *dev, 402 struct drm_encoder_slave *encoder) 403 { 404 struct sil164_priv *priv; 406 407 priv = kzalloc(sizeof(*priv), GFP_KERNEL); 408 if (!priv) 409 return -ENOMEM; 410 411 encoder->slave_priv = priv; 412 encoder->slave_funcs = &sil164_encoder_funcs; 413 414 client = sil164_detect_slave(client); 415 if (!IS_ERR(client)) 416 priv->duallink_slave = client; 417 418 return 0; 419 } 420 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org