Re: [PATCH] extcon: usbc-tusb320: unregister typec port on driver removal
From: Alvin Šipraga
Date: Mon Mar 13 2023 - 12:22:44 EST
On Tue, Mar 14, 2023 at 12:04:34AM +0800, kernel test robot wrote:
> Hi Alvin,
>
> I love your patch! Perhaps something to improve:
>
> [auto build test WARNING on chanwoo-extcon/extcon-next]
> [also build test WARNING on linus/master v6.3-rc2 next-20230310]
> [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/Alvin-ipraga/extcon-usbc-tusb320-unregister-typec-port-on-driver-removal/20230313-210245
> base: https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon.git extcon-next
> patch link: https://lore.kernel.org/r/20230313130105.4183296-1-alvin%40pqrs.dk
> patch subject: [PATCH] extcon: usbc-tusb320: unregister typec port on driver removal
> config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20230313/202303132335.Qnq7apal-lkp@xxxxxxxxx/config)
> compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
> reproduce (this is a W=1 build):
> # https://github.com/intel-lab-lkp/linux/commit/fe414069d19f6d59c7c34f820459f4114e2de136
> git remote add linux-review https://github.com/intel-lab-lkp/linux
> git fetch --no-tags linux-review Alvin-ipraga/extcon-usbc-tusb320-unregister-typec-port-on-driver-removal/20230313-210245
> git checkout fe414069d19f6d59c7c34f820459f4114e2de136
> # save the config file
> mkdir build_dir && cp config build_dir/.config
> make W=1 O=build_dir ARCH=x86_64 olddefconfig
> make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/
>
> If you fix the issue, kindly add following tag where applicable
> | Reported-by: kernel test robot <lkp@xxxxxxxxx>
> | Link: https://lore.kernel.org/oe-kbuild-all/202303132335.Qnq7apal-lkp@xxxxxxxxx/
>
> All warnings (new ones prefixed by >>):
>
> drivers/extcon/extcon-usbc-tusb320.c: In function 'tusb320_typec_probe':
> >> drivers/extcon/extcon-usbc-tusb320.c:429:13: warning: statement with no effect [-Wunused-value]
> 429 | priv->connector_fwnode;
> | ~~~~^~~~~~~~~~~~~~~~~~
Oops, I was on an old test branch when sending this patch... Thank you
kernel test robot. I will send v2 tomorrow to allow for some other
comments first. The only difference in v2 is that this line is corrected
to:
priv->connector_fwnode = connector;
Kind regards,
Alvin
>
>
> vim +429 drivers/extcon/extcon-usbc-tusb320.c
>
> 379
> 380 static int tusb320_typec_probe(struct i2c_client *client,
> 381 struct tusb320_priv *priv)
> 382 {
> 383 struct fwnode_handle *connector;
> 384 const char *cap_str;
> 385 int ret;
> 386
> 387 /* The Type-C connector is optional, for backward compatibility. */
> 388 connector = device_get_named_child_node(&client->dev, "connector");
> 389 if (!connector)
> 390 return 0;
> 391
> 392 /* Type-C connector found. */
> 393 ret = typec_get_fw_cap(&priv->cap, connector);
> 394 if (ret)
> 395 goto err_put;
> 396
> 397 priv->port_type = priv->cap.type;
> 398
> 399 /* This goes into register 0x8 field CURRENT_MODE_ADVERTISE */
> 400 ret = fwnode_property_read_string(connector, "typec-power-opmode", &cap_str);
> 401 if (ret)
> 402 goto err_put;
> 403
> 404 ret = typec_find_pwr_opmode(cap_str);
> 405 if (ret < 0)
> 406 goto err_put;
> 407
> 408 priv->pwr_opmode = ret;
> 409
> 410 /* Initialize the hardware with the devicetree settings. */
> 411 ret = tusb320_set_adv_pwr_mode(priv);
> 412 if (ret)
> 413 goto err_put;
> 414
> 415 priv->cap.revision = USB_TYPEC_REV_1_1;
> 416 priv->cap.accessory[0] = TYPEC_ACCESSORY_AUDIO;
> 417 priv->cap.accessory[1] = TYPEC_ACCESSORY_DEBUG;
> 418 priv->cap.orientation_aware = true;
> 419 priv->cap.driver_data = priv;
> 420 priv->cap.ops = &tusb320_typec_ops;
> 421 priv->cap.fwnode = connector;
> 422
> 423 priv->port = typec_register_port(&client->dev, &priv->cap);
> 424 if (IS_ERR(priv->port)) {
> 425 ret = PTR_ERR(priv->port);
> 426 goto err_put;
> 427 }
> 428
> > 429 priv->connector_fwnode;
> 430
> 431 return 0;
> 432
> 433 err_put:
> 434 fwnode_handle_put(connector);
> 435
> 436 return ret;
> 437 }
> 438
>
> --
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests