Re: [PATCH 5.15 00/79] 5.15.76-rc1 review

[Greg Kroah-Hartman]

On Thu, Oct 27, 2022 at 11:18:42AM -0700, Guenter Roeck wrote:
> On 10/27/22 09:54, Greg Kroah-Hartman wrote:
> > This is the start of the stable review cycle for the 5.15.76 release.
> > There are 79 patches in this series, all will be posted as a response
> > to this one.  If anyone has any issues with these being applied, please
> > let me know.
> > 
> > Responses should be made by Sat, 29 Oct 2022 16:50:35 +0000.
> > Anything received after that time might be too late.
> > 
> Building arm64:allmodconfig ... failed
> --------------
> Error log:
> In file included from drivers/cpufreq/tegra194-cpufreq.c:10:
> drivers/cpufreq/tegra194-cpufreq.c:282:25: error: 'tegra194_cpufreq_of_match' undeclared here (not in a function); did you mean 'tegra194_cpufreq_data'?
>   282 | MODULE_DEVICE_TABLE(of, tegra194_cpufreq_of_match);
>       |                         ^~~~~~~~~~~~~~~~~~~~~~~~~
> include/linux/module.h:244:15: note: in definition of macro 'MODULE_DEVICE_TABLE'
>   244 | extern typeof(name) __mod_##type##__##name##_device_table               \
>       |               ^~~~
> include/linux/module.h:244:21: error: conflicting types for '__mod_of__tegra194_cpufreq_of_match_device_table'; have 'const struct of_device_id[2]'
>   244 | extern typeof(name) __mod_##type##__##name##_device_table               \
>       |                     ^~~~~~
> drivers/cpufreq/tegra194-cpufreq.c:417:1: note: in expansion of macro 'MODULE_DEVICE_TABLE'
>   417 | MODULE_DEVICE_TABLE(of, tegra194_cpufreq_of_match);
>       | ^~~~~~~~~~~~~~~~~~~
> include/linux/module.h:244:21: note: previous declaration of '__mod_of__tegra194_cpufreq_of_match_device_table' with type 'int'
>   244 | extern typeof(name) __mod_##type##__##name##_device_table               \
>       |                     ^~~~~~
> drivers/cpufreq/tegra194-cpufreq.c:282:1: note: in expansion of macro 'MODULE_DEVICE_TABLE'
>   282 | MODULE_DEVICE_TABLE(of, tegra194_cpufreq_of_match);
>       | ^~~~~~~~~~~~~~~~~~~
> make[3]: [scripts/Makefile.build:289: drivers/cpufreq/tegra194-cpufreq.o] Error 1 (ignored)
> ERROR: modpost: missing MODULE_LICENSE() in drivers/cpufreq/tegra194-cpufreq.o
> make[2]: [scripts/Makefile.modpost:133: modules-only.symvers] Error 1 (ignored)
> 
> I don't know what exactly happened, but commit b281adc68db8 ("cpufreq:
> tegra194: Fix module loading") introduces a second MODULE_DEVICE_TABLE
> at the wrong location, causing the build failure.

Ah, the "Fixes:" tag was wrong in the original commit in Linus's tree.
It should have said:
	Fixes: 0839ed1fd7ac ("cpufreq: tegra194: add soc data to support multiple soc")
which removed the existing MODULE_DEVICE_TABLE() entry.

So only kernels newer than 5.19 need this.  I'll go drop it from the
5.10.y and 5.15.y queues, thanks!

greg k-h