linux-kernel - Re: [PATCH v4 2/4] x86: simplify _TIF_SYSCALL

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Date:   Tue, 11 Jun 2019 16:38:43 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Sudeep Holla <sudeep.holla@....com>
cc:     x86@...nel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Oleg Nesterov <oleg@...hat.com>,
        Richard Weinberger <richard@....at>, jdike@...toit.com,
        Steve Capper <Steve.Capper@....com>,
        Haibo Xu <haibo.xu@....com>, Bin Lu <bin.lu@....com>,
        Andy Lutomirski <luto@...nel.org>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>
Subject: Re: [PATCH v4 2/4] x86: simplify _TIF_SYSCALL_EMU handling

On Thu, 23 May 2019, Sudeep Holla wrote:

$Subject: Please use the proper prefix and start the sentence with an upper
case letter.

  x86/entry: Simplify _TIF_SYSCALL_EMU handling

> The usage of emulated/_TIF_SYSCALL_EMU flags in syscall_trace_enter
> seems to be bit overcomplicated than required. Let's simplify it.

s/seems to be bit overcomplicated/is more complicated/

 Either you are sure that it is overengineered, then say so. If not, then
 you should not touch the code at all.

s/Let's simplify it.//

 'Let's do X.' is a popular, but technically useless phrase.

> Cc: Andy Lutomirski <luto@...nel.org>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Ingo Molnar <mingo@...hat.com>
> Cc: Borislav Petkov <bp@...en8.de>
> Acked-by: Oleg Nesterov <oleg@...hat.com>
> Signed-off-by: Sudeep Holla <sudeep.holla@....com>

This is a nice simplification indeed! With the changelog fixed:

     Reviewed-by: Thomas Gleixner <tglx@...utronix.de>