linux-kernel - Re: [patch V4 part 3 13/29] x86/traps: Prepare for using DEFINE

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Date:   Thu, 14 May 2020 14:33:30 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Andy Lutomirski <luto@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>, X86 ML <x86@...nel.org>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Alexandre Chartre <alexandre.chartre@...cle.com>,
        Frederic Weisbecker <frederic@...nel.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Petr Mladek <pmladek@...e.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Joel Fernandes <joel@...lfernandes.org>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Juergen Gross <jgross@...e.com>,
        Brian Gerst <brgerst@...il.com>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Will Deacon <will@...nel.org>
Subject: Re: [patch V4 part 3 13/29] x86/traps: Prepare for using
 DEFINE_IDTENTRY

On Thu, May 14, 2020 at 02:16:29PM +0200, Thomas Gleixner wrote:
> Andy Lutomirski <luto@...nel.org> writes:

> > /*
> >  * Returns the address from which a user trap originated.  This would be the same as regs->ip,
> >  * except for frhgnieawfn nvlrkvklsrvs and mfkealwf, and this lets the thingummy pass a
> >  * modified value to the signal frame, but only for #DE and #UD, because #*!&@&#@.
> >  */
> >
> > except with the blanks filled in.
> 
> Hmm. Filling the blanks gives me:
> 
> /*
> **0Returns1the2address3from4which5a6user7trap8originated.90This1would...
> 
> That's not really more readable than yours :)

ROFL -- You just made me spill my tea!