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From: kbuild test robot <lkp@intel.com>
To: Hans de Goede <hdegoede@redhat.com>
Cc: kbuild-all@01.org, MyungJoo Ham <myungjoo.ham@samsung.com>,
	Chanwoo Choi <cw00.choi@samsung.com>,
	linux-kernel@vger.kernel.org,
	David Cohen <david.a.cohen@intel.com>,
	Hans de Goede <hdegoede@redhat.com>
Subject: Re: [PATCH] extcon: 3gpio: add driver for USB OTG port controlled by 3 GPIOs
Date: Mon, 19 Dec 2016 09:57:43 +0800	[thread overview]
Message-ID: <201612190949.2IgarSnj%fengguang.wu@intel.com> (raw)
In-Reply-To: <20161219001220.13321-1-hdegoede@redhat.com>

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Hi David,

[auto build test WARNING on chanwoo-extcon/extcon-next]
[also build test WARNING on v4.9 next-20161216]
[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/Hans-de-Goede/extcon-3gpio-add-driver-for-USB-OTG-port-controlled-by-3-GPIOs/20161219-082834
base:   https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon.git extcon-next
config: alpha-allyesconfig (attached as .config)
compiler: alpha-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=alpha 

All warnings (new ones prefixed by >>):

   drivers/extcon/extcon-3gpio_otg.c:185:1: warning: data definition has no type or storage class
    MODULE_DEVICE_TABLE(acpi, usb_otg_acpi_match);
    ^~~~~~~~~~~~~~~~~~~
   drivers/extcon/extcon-3gpio_otg.c:185:1: error: type defaults to 'int' in declaration of 'MODULE_DEVICE_TABLE' [-Werror=implicit-int]
   drivers/extcon/extcon-3gpio_otg.c:185:1: warning: parameter names (without types) in function declaration
   In file included from include/linux/acpi.h:27:0,
                    from drivers/extcon/extcon-3gpio_otg.c:21:
   include/linux/device.h:1353:1: warning: data definition has no type or storage class
    module_init(__driver##_init); \
    ^
   include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver'
     module_driver(__platform_driver, platform_driver_register, \
     ^~~~~~~~~~~~~
   drivers/extcon/extcon-3gpio_otg.c:197:1: note: in expansion of macro 'module_platform_driver'
    module_platform_driver(usb_otg_driver);
    ^~~~~~~~~~~~~~~~~~~~~~
   include/linux/device.h:1353:1: error: type defaults to 'int' in declaration of 'module_init' [-Werror=implicit-int]
    module_init(__driver##_init); \
    ^
   include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver'
     module_driver(__platform_driver, platform_driver_register, \
     ^~~~~~~~~~~~~
   drivers/extcon/extcon-3gpio_otg.c:197:1: note: in expansion of macro 'module_platform_driver'
    module_platform_driver(usb_otg_driver);
    ^~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/linkage.h:6:0,
                    from include/linux/kernel.h:6,
                    from include/linux/list.h:8,
                    from include/linux/resource_ext.h:17,
                    from include/linux/acpi.h:26,
                    from drivers/extcon/extcon-3gpio_otg.c:21:
>> include/linux/export.h:37:30: warning: parameter names (without types) in function declaration
    #define THIS_MODULE ((struct module *)0)
                                 ^
>> include/linux/platform_device.h:198:34: note: in expansion of macro 'THIS_MODULE'
     __platform_driver_register(drv, THIS_MODULE)
                                     ^~~~~~~~~~~
>> include/linux/device.h:1351:9: note: in expansion of macro 'platform_driver_register'
     return __register(&(__driver) , ##__VA_ARGS__); \
            ^~~~~~~~~~
   include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver'
     module_driver(__platform_driver, platform_driver_register, \
     ^~~~~~~~~~~~~
   drivers/extcon/extcon-3gpio_otg.c:197:1: note: in expansion of macro 'module_platform_driver'
    module_platform_driver(usb_otg_driver);
    ^~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/acpi.h:27:0,
                    from drivers/extcon/extcon-3gpio_otg.c:21:
   include/linux/device.h:1358:1: warning: data definition has no type or storage class
    module_exit(__driver##_exit);
    ^
   include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver'
     module_driver(__platform_driver, platform_driver_register, \
     ^~~~~~~~~~~~~
   drivers/extcon/extcon-3gpio_otg.c:197:1: note: in expansion of macro 'module_platform_driver'
    module_platform_driver(usb_otg_driver);
    ^~~~~~~~~~~~~~~~~~~~~~
   include/linux/device.h:1358:1: error: type defaults to 'int' in declaration of 'module_exit' [-Werror=implicit-int]
    module_exit(__driver##_exit);
    ^
   include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver'
     module_driver(__platform_driver, platform_driver_register, \
     ^~~~~~~~~~~~~
   drivers/extcon/extcon-3gpio_otg.c:197:1: note: in expansion of macro 'module_platform_driver'
    module_platform_driver(usb_otg_driver);
    ^~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/linkage.h:6:0,
                    from include/linux/kernel.h:6,
                    from include/linux/list.h:8,
                    from include/linux/resource_ext.h:17,
                    from include/linux/acpi.h:26,
                    from drivers/extcon/extcon-3gpio_otg.c:21:
>> include/linux/export.h:37:30: warning: parameter names (without types) in function declaration
    #define THIS_MODULE ((struct module *)0)
                                 ^
>> include/linux/platform_device.h:198:34: note: in expansion of macro 'THIS_MODULE'
     __platform_driver_register(drv, THIS_MODULE)
                                     ^~~~~~~~~~~
>> include/linux/device.h:1351:9: note: in expansion of macro 'platform_driver_register'
     return __register(&(__driver) , ##__VA_ARGS__); \
            ^~~~~~~~~~
   include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver'
     module_driver(__platform_driver, platform_driver_register, \
     ^~~~~~~~~~~~~
   drivers/extcon/extcon-3gpio_otg.c:197:1: note: in expansion of macro 'module_platform_driver'
    module_platform_driver(usb_otg_driver);
    ^~~~~~~~~~~~~~~~~~~~~~
   drivers/extcon/extcon-3gpio_otg.c:199:15: error: expected declaration specifiers or '...' before string constant
    MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/extcon/extcon-3gpio_otg.c:200:20: error: expected declaration specifiers or '...' before string constant
    MODULE_DESCRIPTION("3 GPIO USB OTG extcon driver");
                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/extcon/extcon-3gpio_otg.c:201:16: error: expected declaration specifiers or '...' before string constant
    MODULE_LICENSE("GPL");
                   ^~~~~
   In file included from include/linux/acpi.h:27:0,
                    from drivers/extcon/extcon-3gpio_otg.c:21:
   drivers/extcon/extcon-3gpio_otg.c:197:24: warning: 'usb_otg_driver_init' defined but not used [-Wunused-function]
    module_platform_driver(usb_otg_driver);
                           ^
   include/linux/device.h:1349:19: note: in definition of macro 'module_driver'
    static int __init __driver##_init(void) \
                      ^~~~~~~~
   drivers/extcon/extcon-3gpio_otg.c:197:1: note: in expansion of macro 'module_platform_driver'
    module_platform_driver(usb_otg_driver);
    ^~~~~~~~~~~~~~~~~~~~~~
   drivers/extcon/extcon-3gpio_otg.c:181:30: warning: 'usb_otg_acpi_match' defined but not used [-Wunused-variable]
    static struct acpi_device_id usb_otg_acpi_match[] = {
                                 ^~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/THIS_MODULE +198 include/linux/platform_device.h

00d3dcdd Russell King     2005-11-09  182  	int (*remove)(struct platform_device *);
00d3dcdd Russell King     2005-11-09  183  	void (*shutdown)(struct platform_device *);
00d3dcdd Russell King     2005-11-09  184  	int (*suspend)(struct platform_device *, pm_message_t state);
00d3dcdd Russell King     2005-11-09  185  	int (*resume)(struct platform_device *);
00d3dcdd Russell King     2005-11-09  186  	struct device_driver driver;
831fad2f Uwe Kleine-König 2010-01-26  187  	const struct platform_device_id *id_table;
3f9120b0 Johan Hovold     2013-09-23  188  	bool prevent_deferred_probe;
00d3dcdd Russell King     2005-11-09  189  };
00d3dcdd Russell King     2005-11-09  190  
10dbc5e3 Rob Herring      2013-04-21  191  #define to_platform_driver(drv)	(container_of((drv), struct platform_driver, \
10dbc5e3 Rob Herring      2013-04-21  192  				 driver))
10dbc5e3 Rob Herring      2013-04-21  193  
9447057e Libo Chen        2013-05-25  194  /*
9447057e Libo Chen        2013-05-25  195   * use a macro to avoid include chaining to get THIS_MODULE
9447057e Libo Chen        2013-05-25  196   */
9447057e Libo Chen        2013-05-25  197  #define platform_driver_register(drv) \
9447057e Libo Chen        2013-05-25 @198  	__platform_driver_register(drv, THIS_MODULE)
9447057e Libo Chen        2013-05-25  199  extern int __platform_driver_register(struct platform_driver *,
9447057e Libo Chen        2013-05-25  200  					struct module *);
00d3dcdd Russell King     2005-11-09  201  extern void platform_driver_unregister(struct platform_driver *);
00d3dcdd Russell King     2005-11-09  202  
c67334fb David Brownell   2006-11-16  203  /* non-hotpluggable platform devices may use this so that probe() and
c67334fb David Brownell   2006-11-16  204   * its support may live in __init sections, conserving runtime memory.
c67334fb David Brownell   2006-11-16  205   */
c3b50dc2 Wolfram Sang     2014-10-28  206  #define platform_driver_probe(drv, probe) \

:::::: The code at line 198 was first introduced by commit
:::::: 9447057eaff871dd7c63c808de761b8732407169 platform_device: use a macro instead of platform_driver_register

:::::: TO: Libo Chen <clbchenlibo.chen@huawei.com>
:::::: CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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  reply	other threads:[~2016-12-19  1:58 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-19  2:01 kbuild test robot
2016-12-19  0:12 ` Hans de Goede
2016-12-19  1:57   ` kbuild test robot [this message]
2016-12-19  2:01   ` [PATCH] extcon: 3gpio: fix platform_no_drv_owner.cocci warnings kbuild test robot
2016-12-19  2:34   ` [PATCH] extcon: 3gpio: add driver for USB OTG port controlled by 3 GPIOs kbuild test robot
2016-12-19  8:00   ` Chanwoo Choi
2016-12-19  8:57     ` Hans de Goede
2016-12-19  9:41       ` Chanwoo Choi

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