netdev - RE: [PATCH net-next] net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)

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Date:   Wed, 7 Apr 2021 08:08:59 +0000
From:   Dexuan Cui <decui@...rosoft.com>
To:     kernel test robot <lkp@...el.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "kuba@...nel.org" <kuba@...nel.org>,
        KY Srinivasan <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        "wei.liu@...nel.org" <wei.liu@...nel.org>,
        Wei Liu <liuwe@...rosoft.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     "kbuild-all@...ts.01.org" <kbuild-all@...ts.01.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>
Subject: RE: [PATCH net-next] net: mana: Add a driver for Microsoft Azure
 Network Adapter (MANA)

> From: kernel test robot <lkp@...el.com>
> Sent: Tuesday, April 6, 2021 6:31 PM
> ...
> Hi Dexuan, 
> I love your patch! Perhaps something to improve:
> 
> All warnings (new ones prefixed by >>):
> 
>    drivers/pci/controller/pci-hyperv.c: In function 'hv_irq_unmask':
>    drivers/pci/controller/pci-hyperv.c:1220:2: error: implicit declaration of
> function 'hv_set_msi_entry_from_desc'
> [-Werror=implicit-function-declaration]
>     1220 |  hv_set_msi_entry_from_desc(&params->int_entry.msi_entry,
> msi_desc);

This build error looks strange, because the patch doesn't even touch the driver
drivers/pci/controller/pci-hyperv.c.

I'll try to repro the build failure, and the other 2 failures in 2 separate
emails, and figure out what's happening.

PS, I tested building the patch in a fresh Ubuntu 20.04 VM and it was successful.

Thanks,
-- Dexuan