[PATCH V8 01/18] perf/core: Use static_call to optimize perf_guest_info_callbacks

[Like Xu]

On 16/7/2021 4:53 pm, Zhu Lingshan wrote:
> +	} else if (xenpmu_data->pmu.r.regs.cpl & 3)

Lingshan, serious for this version ?

arch/x86/xen/pmu.c:438:9: error: expected identifier or ‘(’ before ‘return’
   438 |         return state;
       |         ^~~~~~
arch/x86/xen/pmu.c:439:1: error: expected identifier or ‘(’ before ‘}’ token
   439 | }
       | ^
arch/x86/xen/pmu.c: In function ‘xen_guest_state’:
arch/x86/xen/pmu.c:436:9: error: control reaches end of non-void 
function [-Werror=return-type]
   436 |         }
       |         ^
cc1: some warnings being treated as errors

> +			state |= PERF_GUEST_USER;
>   	}