linux-kernel - Re: [Update PATCH] x86/Hyper-V: Fix definition HV_MAX_FLUSH_REP

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Message-ID: <20190225141944.GA13067@kroah.com>
Date:   Mon, 25 Feb 2019 15:19:44 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     lantianyu1986@...il.com
Cc:     kys@...rosoft.com, haiyangz@...rosoft.com, sthemmin@...rosoft.com,
        sashal@...nel.org, tglx@...utronix.de, mingo@...hat.com,
        bp@...en8.de, hpa@...or.com, x86@...nel.org,
        Lan Tianyu <Tianyu.Lan@...rosoft.com>,
        devel@...uxdriverproject.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [Update PATCH] x86/Hyper-V: Fix definition HV_MAX_FLUSH_REP_COUNT

On Mon, Feb 25, 2019 at 10:12:14PM +0800, lantianyu1986@...il.com wrote:
> From: Lan Tianyu <Tianyu.Lan@...rosoft.com>
> 
> The max flush rep count of HvFlushGuestPhysicalAddressList hypercall
> is equal with how many entries of union hv_gpa_page_range can be populated
> into the input parameter page. The origin code lacks parenthesis around
> PAGE_SIZE - 2 * sizeof(u64). This patch is to fix it.
> 
> Cc: <stable@...r.kernel.org>
> Fixs: cc4edae4b924 ("x86/hyper-v: Add HvFlushGuestAddressList hypercall support")

"Fixes"