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From:   Thomas Gleixner <tglx@linutronix.de>
To:     Andy Lutomirski <luto@kernel.org>
Cc:     LKML <linux-kernel@vger.kernel.org>, X86 ML <x86@kernel.org>,
        "Paul E. McKenney" <paulmck@kernel.org>,
        Andy Lutomirski <luto@kernel.org>,
        Alexandre Chartre <alexandre.chartre@oracle.com>,
        Frederic Weisbecker <frederic@kernel.org>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Sean Christopherson <sean.j.christopherson@intel.com>,
        Masami Hiramatsu <mhiramat@kernel.org>,
        Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Joel Fernandes <joel@joelfernandes.org>,
        Boris Ostrovsky <boris.ostrovsky@oracle.com>,
        Juergen Gross <jgross@suse.com>,
        Brian Gerst <brgerst@gmail.com>,
        Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
        Josh Poimboeuf <jpoimboe@redhat.com>,
        Will Deacon <will@kernel.org>
Subject: Re: [patch V4 part 3 29/29] x86/entry/32: Convert IRET exception to IDTENTRY_SW
In-Reply-To: <CALCETrXNt4A8Gp-24Awgg+PFL2qwa20JKhFiYWbbnV1RefST4Q@mail.gmail.com>
Date:   Fri, 15 May 2020 16:11:10 +0200
Message-ID: <87imgxe1a9.fsf@nanos.tec.linutronix.de>
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Andy Lutomirski <luto@kernel.org> writes:

> On Tue, May 5, 2020 at 7:15 AM Thomas Gleixner <tglx@linutronix.de> wrote:
>>
>> From: Thomas Gleixner <tglx@linutronix.de>
>>
>> Convert the IRET exception handler to IDTENTRY_SW. This is slightly
>> different than the conversions of hardware exceptions as the IRET exception
>> is invoked via an exception table when IRET faults. So it just uses the
>> IDTENTRY_SW mechanism for consistency. It does not emit ASM code as it does
>> not fit the other idtentry exceptions.
>
> Blech.  I should redo the 32-bit code to handle this the way the
> 64-bit code does and this can all be deleted.  But, for now:
>
> Acked-by: Andy Lutomirski <luto@kernel.org>
>
> However, maybe rename asm_exc_iret_error to avoid confusion?  It's not
> really an exception entry.

True. Removed the 'exc_' from all instances.