Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Mon, 19 Jul 2021 09:24:15 +0000
From:   Wei Liu <wei.liu@kernel.org>
To:     Michael Kelley <mikelley@microsoft.com>
Cc:     sthemmin@microsoft.com, kys@microsoft.com, wei.liu@kernel.org,
        decui@microsoft.com, daniel.lezcano@linaro.org, tglx@linutronix.de,
        arnd@arndb.de, linux-kernel@vger.kernel.org,
        linux-hyperv@vger.kernel.org, linux-arch@vger.kernel.org
Subject: Re: [PATCH 1/1] drivers: hv: Decouple Hyper-V clock/timer code from
 VMbus drivers
Message-ID: <20210719092415.vgx2xsk2vsppojzp@liuwe-devbox-debian-v2>
References: <1626220906-22629-1-git-send-email-mikelley@microsoft.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <1626220906-22629-1-git-send-email-mikelley@microsoft.com>
Precedence: bulk

On Tue, Jul 13, 2021 at 05:01:46PM -0700, Michael Kelley wrote:
> Hyper-V clock/timer code in hyperv_timer.c is mostly independent from
> other VMbus drivers, but building for ARM64 without hyperv_timer.c
> shows some remaining entanglements.  A default implementation of
> hv_read_reference_counter can just read a Hyper-V synthetic register
> and be independent of hyperv_timer.c, so move this code out and into
> hv_common.c. Then it can be used by the timesync driver even if
> hyperv_timer.c isn't built on a particular architecture.  If
> hyperv_timer.c *is* built, it can override with a faster implementation.
> 
> Also provide stubs for stimer functions called by the VMbus driver when
> hyperv_timer.c isn't built.
> 
> No functional changes.
> 
> Signed-off-by: Michael Kelley <mikelley@microsoft.com>

Applied to hyperv-next. Thanks.