Re: [PATCH] perf pmu: Validate raw event with sysfs exported format bits

[Jin, Yao]

Hi Andi,

On 3/5/2021 9:10 AM, Andi Kleen wrote:
> > Single event:
> >
> >    # ./perf stat -e cpu/r031234/ -a -- sleep 1
> >    WARNING: event config '31234' not valid (bits 16 17 not supported by kernel)!
>
> Just noticed that again. Can you please print the original event as
> string in the message? While it's obvious with rXXX which one it is,
> it may not be obvious with offsetted fields (like umask=0x121212),
> and hard to find in a long command line.
>
> -Andi

Sometime the event name is NULL. In v2, if the event name is not NULL, I will print the event name.

Thanks
Jin Yao