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From:   "Jason A. Donenfeld" <Jason@zx2c4.com>
Date:   Wed, 1 Jan 2020 10:47:52 +0100
Message-ID: <CAHmME9rgH=LmbVeq7Vs-Hxo6s0+gyeB7s5fBFt2fXvgMKw3=3g@mail.gmail.com>
Subject: Re: [PATCH] mips: vdso: conditionalize 32-bit time functions on COMPAT_32BIT_TIME
To:     Paul Burton <paulburton@kernel.org>
Cc:     Arnd Bergmann <arnd@arndb.de>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "open list:BROADCOM NVRAM DRIVER" <linux-mips@vger.kernel.org>,
        Vincenzo Frascino <vincenzo.frascino@arm.com>,
        Christian Brauner <christian.brauner@canonical.com>
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On Wed, Jan 1, 2020 at 5:22 AM Paul Burton <paulburton@kernel.org> wrote:
> That makes sense then. What doesn't make sense is how this ever
> worked. A question for another day...

In most other cases, calls to the vdso would be followed in the parent
function immediately by a return, restoring gp then.