On 10/5/14 0:00, Greg KH wrote:
> On Sat, Oct 04, 2014 at 10:19:50PM +0800, Chen Gang wrote:
>> 'cpu_data' is too common to be already used by some architectures (e.g.
>> um, m32r, and mn10300), so need use 'pm_cpu_data' instead of, or cause
>> compiling break. The related error (with allmodconfig under um):
>>
>> CC drivers/base/platform.o
>> In file included from ./arch/x86/um/asm/processor.h:31:0,
>> from ./arch/um/include/asm/uaccess.h:16,
>> from ./arch/um/include/asm/thread_info.h:13,
>> from include/linux/thread_info.h:54,
>> from include/asm-generic/current.h:4,
>> from arch/um/include/generated/asm/current.h:1,
>> from include/linux/mutex.h:13,
>> from include/linux/kernfs.h:13,
>> from include/linux/sysfs.h:15,
>> from include/linux/kobject.h:21,
>> from include/linux/device.h:17,
>> from include/linux/platform_device.h:14,
>> from drivers/base/platform.c:14:
>> ./arch/um/include/asm/processor-generic.h:107:19: error: expected
>> identifier or '(' before '&' token
>> #define cpu_data (&boot_cpu_data)
>> ^
>> include/linux/pm_domain.h:74:23: note: in expansion of macro 'cpu_data'
>> struct gpd_cpu_data *cpu_data;
>> ^
>>
>> Also need notice about 80 columns boundary.
>
> I don't object to this change at all, but it could be easier to solve
> this by fixing up 'cpu_data' to be named something a bit less "generic"?
> What does x86 use for this data type?
>
It is for some kinds of arm cpu (I let this patch pass arm s3c600
def_config building). Other architectures did not use it, at present.
If necessary to complete the comments, please let me know, I shall send
patch v2 for it.
Thanks.
--
Chen Gang
Open, share, and attitude like air, water, and life which God blessed
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