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SubjectRe: 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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