Re: linux-next: build failure after merge of the rtc tree

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Hi Belloni,

On Mon, 2020-03-16 at 16:15 +1100, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the rtc tree, today's linux-next build (x86_64 allmodconfig)
> failed like this:
> 
> drivers/rtc/rtc-mt2712.c: In function 'mt2712_rtc_set_alarm':
> drivers/rtc/rtc-mt2712.c:235:6: warning: unused variable 'irqen' [-Wunused-variable]
>   235 |  u16 irqen;
>       |      ^~~~~
> drivers/rtc/rtc-mt2712.c: At top level:
> drivers/rtc/rtc-mt2712.c:409:1: error: expected ',' or ';' before 'static'
>   409 | static struct platform_driver mt2712_rtc_driver = {
>       | ^~~~~~
> In file included from drivers/rtc/rtc-mt2712.c:14:
> drivers/rtc/rtc-mt2712.c: In function 'mt2712_rtc_driver_init':
> drivers/rtc/rtc-mt2712.c:418:24: error: 'mt2712_rtc_driver' undeclared (first use in this function); did you mean 'mt2712_rtc_probe'?
>   418 | module_platform_driver(mt2712_rtc_driver);
>       |                        ^~~~~~~~~~~~~~~~~
> include/linux/platform_device.h:214:29: note: in definition of macro 'platform_driver_register'
>   214 |  __platform_driver_register(drv, THIS_MODULE)
>       |                             ^~~
> include/linux/platform_device.h:244:2: note: in expansion of macro 'module_driver'
>   244 |  module_driver(__platform_driver, platform_driver_register, \
>       |  ^~~~~~~~~~~~~
> drivers/rtc/rtc-mt2712.c:418:1: note: in expansion of macro 'module_platform_driver'
>   418 | module_platform_driver(mt2712_rtc_driver);
>       | ^~~~~~~~~~~~~~~~~~~~~~
> drivers/rtc/rtc-mt2712.c:418:24: note: each undeclared identifier is reported only once for each function it appears in
>   418 | module_platform_driver(mt2712_rtc_driver);
>       |                        ^~~~~~~~~~~~~~~~~
> include/linux/platform_device.h:214:29: note: in definition of macro 'platform_driver_register'
>   214 |  __platform_driver_register(drv, THIS_MODULE)
>       |                             ^~~
> include/linux/platform_device.h:244:2: note: in expansion of macro 'module_driver'
>   244 |  module_driver(__platform_driver, platform_driver_register, \
>       |  ^~~~~~~~~~~~~
> drivers/rtc/rtc-mt2712.c:418:1: note: in expansion of macro 'module_platform_driver'
>   418 | module_platform_driver(mt2712_rtc_driver);
>       | ^~~~~~~~~~~~~~~~~~~~~~
> In file included from include/linux/device.h:31,
>                  from include/linux/platform_device.h:13,
>                  from drivers/rtc/rtc-mt2712.c:14:
> drivers/rtc/rtc-mt2712.c: In function 'mt2712_rtc_driver_exit':
> drivers/rtc/rtc-mt2712.c:418:24: error: 'mt2712_rtc_driver' undeclared (first use in this function); did you mean 'mt2712_rtc_probe'?
>   418 | module_platform_driver(mt2712_rtc_driver);
>       |                        ^~~~~~~~~~~~~~~~~
> include/linux/device/driver.h:266:17: note: in definition of macro 'module_driver'
>   266 |  __unregister(&(__driver) , ##__VA_ARGS__); \
>       |                 ^~~~~~~~
> drivers/rtc/rtc-mt2712.c:418:1: note: in expansion of macro 'module_platform_driver'
>   418 | module_platform_driver(mt2712_rtc_driver);
>       | ^~~~~~~~~~~~~~~~~~~~~~
> drivers/rtc/rtc-mt2712.c: In function 'mt2712_rtc_driver_init':
> drivers/rtc/rtc-mt2712.c:418:1: warning: control reaches end of non-void function [-Wreturn-type]
>   418 | module_platform_driver(mt2712_rtc_driver);
>       | ^~~~~~~~~~~~~~~~~~~~~~
> At top level:
> drivers/rtc/rtc-mt2712.c:312:12: warning: 'mt2712_rtc_probe' defined but not used [-Wunused-function]
>   312 | static int mt2712_rtc_probe(struct platform_device *pdev)
>       |            ^~~~~~~~~~~~~~~~
> 
> Caused by commit
> 
>   00c36d73171b ("rtc: add support for the MediaTek MT2712 RTC")
> 
> I have used the version from next-20200313 for today.
> 

This build fail only happen if rtc-mt2712 build as module which I
haven't try. It because ";" was missed after "MODULE_DEVICE_TABLE(of,
mt2712_rtc_of_match)". Should I send a fix patch for this or resend the
whole rtc-mt2712 driver?

Regards,
Ran




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