linux-kernel - Re: [PATCH 1/2] i2c: cros-ec-tunnel: Fix usage of cros_ec_cmd

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Date:	Tue, 26 Jul 2016 02:31:43 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Brian Norris <briannorris@...omium.org>
Cc:	kbuild-all@...org, Lee Jones <lee.jones@...aro.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Wolfram Sang <wsa@...-dreams.de>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Olof Johansson <olof@...om.net>,
	Brian Norris <computersforpeace@...il.com>,
	Javier Martinez Canillas <javier@....samsung.com>,
	Enric Balletbo <enric.balletbo@...labora.co.uk>,
	Shawn Nematbakhsh <shawnn@...omium.org>,
	Gwendal Grignou <gwendal@...omium.org>,
	Tomeu Vizoso <tomeu.vizoso@...labora.com>,
	linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-input@...r.kernel.org, Guenter Roeck <linux@...ck-us.net>,
	Brian Norris <briannorris@...omium.org>
Subject: Re: [PATCH 1/2] i2c: cros-ec-tunnel: Fix usage of cros_ec_cmd_xfer()

Hi,

[auto build test ERROR on wsa/i2c/for-next]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Brian-Norris/cros_ec-utilize-cros_ec_cmd_xfer_status/20160726-021919
base:   https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/for-next
config: i386-randconfig-x016-201630 (attached as .config)
compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   drivers/i2c/busses/i2c-cros-ec-tunnel.c: In function 'ec_i2c_xfer':
>> drivers/i2c/busses/i2c-cros-ec-tunnel.c:218:11: error: implicit declaration of function 'cros_ec_cmd_xfer_status' [-Werror=implicit-function-declaration]
     result = cros_ec_cmd_xfer_status(bus->ec, msg);
              ^~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/cros_ec_cmd_xfer_status +218 drivers/i2c/busses/i2c-cros-ec-tunnel.c

   212	
   213		msg->version = 0;
   214		msg->command = EC_CMD_I2C_PASSTHRU;
   215		msg->outsize = request_len;
   216		msg->insize = response_len;
   217	
 > 218		result = cros_ec_cmd_xfer_status(bus->ec, msg);
   219		if (result < 0) {
   220			dev_err(dev, "Error transferring EC i2c message %d\n", result);
   221			goto exit;

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