linux-kernel - Re: [PATCH] x86/mm/cpa: Warn if set_memory

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Message-ID: <52fce857c1ad34417b0b0ced2e99c48ad3f746f6.camel@intel.com>
Date:   Thu, 26 Oct 2023 22:07:48 +0000
From:   "Edgecombe, Rick P" <rick.p.edgecombe@...el.com>
To:     "Lutomirski, Andy" <luto@...nel.org>,
        "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
        "thomas.lendacky@....com" <thomas.lendacky@....com>,
        "Reshetova, Elena" <elena.reshetova@...el.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Christopherson,, Sean" <seanjc@...gle.com>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "kirill.shutemov@...ux.intel.com" <kirill.shutemov@...ux.intel.com>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "Cui, Dexuan" <decui@...rosoft.com>,
        "Yamahata, Isaku" <isaku.yamahata@...el.com>,
        "mikelley@...rosoft.com" <mikelley@...rosoft.com>,
        "hpa@...or.com" <hpa@...or.com>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "bp@...en8.de" <bp@...en8.de>,
        "sathyanarayanan.kuppuswamy@...ux.intel.com" 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        "x86@...nel.org" <x86@...nel.org>
Subject: Re: [PATCH] x86/mm/cpa: Warn if set_memory_XXcrypted() fails

On Thu, 2023-10-26 at 08:37 -0500, Tom Lendacky wrote:
> It might be even easier to read to just have:
> 
>         if (ret)
>                 return ret;
> 
>         if (!x86_platform...)
>                 goto vmm_fail
> 
>         return 0;
> 
> since jumping to the out: label just does a return anyway.

Err, right. I'll change it.