linux-kernel - Re: [PATCH] x86/entry: Remove put_ret_addr_in

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Date:   Thu, 14 Jan 2021 16:53:01 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Borislav Petkov <bp@...en8.de>
Cc:     Nick Desaulniers <ndesaulniers@...gle.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Mark Brown <broonie@...nel.org>,
        Andy Lutomirski <luto@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Fangrui Song <maskray@...gle.com>,
        Arnd Bergmann <arnd@...db.de>,
        Jonathan Corbet <corbet@....net>,
        "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        Nathan Chancellor <natechancellor@...il.com>,
        Miguel Ojeda <ojeda@...nel.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Joe Perches <joe@...ches.com>,
        Linux Doc Mailing List <linux-doc@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        clang-built-linux <clang-built-linux@...glegroups.com>
Subject: Re: [PATCH] x86/entry: Remove put_ret_addr_in_rdi THUNK macro
 argument

On Thu, Jan 14, 2021 at 02:28:09PM +0100, Borislav Petkov wrote:
> On Thu, Jan 14, 2021 at 12:36:45PM +0100, Peter Zijlstra wrote:
> > And while looking, I suppose we can delete the put_ret_addr_in_rdi crud,
> > but that's another patch.
> 
> ---
> From: Borislav Petkov <bp@...e.de>
> Date: Thu, 14 Jan 2021 14:25:35 +0100
> Subject: [PATCH] x86/entry: Remove put_ret_addr_in_rdi THUNK macro argument
> 
> That logic is unused since
> 
>   320100a5ffe5 ("x86/entry: Remove the TRACE_IRQS cruft")
> 
> Remove it.
> 
> Suggested-by: Peter Zijlstra <peterz@...radead.org>
> Signed-off-by: Borislav Petkov <bp@...e.de>

Acked-by; Peter Zijlstra (Intel) <peterz@...radead.org>