Re: [PATCH] x86/bugs: Allow STIBP with IBRS

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On Mon, Feb 20, 2023 at 10:33:56AM -0800, KP Singh wrote:
>  static char *stibp_state(void)
>  {
> -       if (spectre_v2_in_ibrs_mode(spectre_v2_enabled))
> +       if (!spectre_v2_user_needs_stibp(spectre_v2_enabled))
>                 return "";
> 
>         switch (spectre_v2_user_stibp) {
> 
> Also Josh, is it okay for us to have a discussion and have me write
> the patch as a v2? Your current patch does not even credit me at all.
> Seems a bit unfair, but I don't really care. I was going to rev up the
> patch with your suggestions.

Well, frankly the patch needed a complete rewrite.  The patch
description was unclear about what the problem is and what's being
fixed.  The code was obtuse and the comments didn't help.  I could tell
by the other replies that I wasn't the only one confused.

I can give you Reported-by, or did you have some other tag in mind?

-- 
Josh



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