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From:   Sunil Muthuswamy <sunilmut@microsoft.com>
To:     Michael Kelley <mikelley@microsoft.com>,
        KY Srinivasan <kys@microsoft.com>,
        Haiyang Zhang <haiyangz@microsoft.com>,
        Stephen Hemminger <sthemmin@microsoft.com>,
        "wei.liu@kernel.org" <wei.liu@kernel.org>,
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        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>
Subject: RE: [PATCH 1/1] Drivers: hv: Move Hyper-V extended capability check
 to arch neutral code
Thread-Topic: [PATCH 1/1] Drivers: hv: Move Hyper-V extended capability check
 to arch neutral code
Thread-Index: AQHXV/dt754Yd0mslE6VHNCgKiA46KsC+4ow
Date:   Fri, 4 Jun 2021 00:14:09 +0000
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References: <1622669804-2016-1-git-send-email-mikelley@microsoft.com>
In-Reply-To: <1622669804-2016-1-git-send-email-mikelley@microsoft.com>
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> The extended capability query code is currently under arch/x86, but it
> is architecture neutral, and is used by arch neutral code in the Hyper-V
> balloon driver. Hence the balloon driver fails to build on other
> architectures.
>=20
> Fix by moving the ext cap code out from arch/x86.  Because it is also
> called from built-in architecture specific code, it can't be in a module,
> so the Makefile treats as built-in even when CONFIG_HYPERV is "m".  Also
> drivers/Makefile is tweaked because this is the first occurrence of a
> Hyper-V file that is built-in even when CONFIG_HYPERV is "m".
>=20
> While here, update the hypercall status check to use the new helper
> function instead of open coding. No functional change.
>=20

Thanks for taking care of this, Michael.

Reviewed-by: Sunil Muthuswamy <sunilmut@microsoft.com>