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Date:   Mon, 15 Apr 2019 22:07:26 +0200
From:   Pavel Machek <pavel@denx.de>
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc:     linux-kernel@vger.kernel.org, stable@vger.kernel.org,
        Jarkko Nikula <jarkko.nikula@linux.intel.com>,
        Andy Lutomirski <luto@kernel.org>,
        "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Borislav Petkov <bpetkov@suse.de>,
        Josh Poimboeuf <jpoimboe@redhat.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Peter Zijlstra <peterz@infradead.org>,
        "Rafael J. Wysocki" <rjw@rjwysocki.net>,
        Zhang Rui <rui.zhang@intel.com>,
        Ingo Molnar <mingo@kernel.org>, Sasha Levin <sashal@kernel.org>
Subject: Re: [PATCH 4.14 03/69] x86/power/64: Use struct desc_ptr for the IDT
 in struct saved_context
Message-ID: <20190415200726.GB25908@amd>
References: <20190415183726.036654568@linuxfoundation.org>
 <20190415183726.883542005@linuxfoundation.org>
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On Mon 2019-04-15 20:58:21, Greg Kroah-Hartman wrote:
> [ Upstream commit 090edbe23ff57940fca7f57d9165ce57a826bd7a ]
>=20
> x86_64's saved_context nonsensically used separate idt_limit and
> idt_base fields and then cast &idt_limit to struct desc_ptr *.
>=20
> This was correct (with -fno-strict-aliasing), but it's confusing,
> served no purpose, and required #ifdeffery. Simplify this by
> using struct desc_ptr directly.
>=20
> No change in functionality.

While this is nice cleanup, I don't think it fixes real bug. I don't
think it is suitable for stable.
									Pavel

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(english) http://www.livejournal.com/~pavelmachek
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