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SubjectRe: [PATCH] drivers: base: power: domain: Use 'pm_cpu_data' instead of 'cpu_data' for compiling break
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?

thanks,

greg k-h


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