Re: [Qemu-devel] [PATCH uq/master V2] kvm: Add CPUID support for VIA CPU

[BrillyWu]

Hi, Jan

> > I am sure I have checked it with the scripts/checkpatch.pl, and it
> > shows no error or warning. Maybe I should check whether my windows
> > editor and  mail client can work well before sending it to
> you. I 'm
> > sorry.
>
> Sorry, you are right. Your patch revealed a bug in the checkpatch
> script.
>
> Blue, this does not trigger the missing braces warning:

Do you mean the bug is that it can not trigger missing braces warining?
It seems that there is no missing braces in my patch, but some
unnecessary braces.

>
> @@ -1035,8 +1052,17 @@ void cpu_x86_cpuid(CPUX86State *env, uin  {
>      /* test if maximum index reached */
>      if (index & 0x80000000) {
> -        if (index > env->cpuid_xlevel)
> -            index = env->cpuid_level;
> +        if (index > env->cpuid_xlevel) {
> +            if (env->cpuid_xlevel2 > 0) {
> +                /* Handle the Centaur's CPUID instruction. */
> +                if (index > env->cpuid_xlevel2) {
> +                    index = env->cpuid_xlevel2;
> +                } else if (index < 0xC0000000) {
> +                    index = env->cpuid_xlevel;
> +                }
> +            } else
> +                index =  env->cpuid_xlevel;
> +        }
>      } else {
>          if (index > env->cpuid_level)
>              index = env->cpuid_level;
>
>
> > OK, I will use the previous commit log, and send it to you
> in the new thread.
>
> Thanks. I think it would be fair to fix up the braces on commit now.

It looks that there are some unnecessary braces, but if I remove them,
the script/checkpatch.pl will report warnings. Could I ignore it?
BTW, I have submited a patch v3 a few minutes before withou fixing up
the braces, and I have tested it with my mail client this time, so it
could be OK now.