linux-kernel - ERROR: "__sw_hweight8" [drivers/net/wireless/mediatek/mt76/mt76.ko] undefined!

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Message-ID: <201902122125.Ba1Ua2jh%fengguang.wu@intel.com>
Date:   Tue, 12 Feb 2019 21:18:04 +0800
From:   kbuild test robot <lkp@...el.com>
To:     João Paulo Rechi Vita <jprvita@...il.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: ERROR: "__sw_hweight8" [drivers/net/wireless/mediatek/mt76/mt76.ko]
 undefined!

Hi João,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f17b5f06cb92ef2250513a1e154c47b78df07d40
commit: 78f3ac76d9e5219589718b9e4733bee21627b3f5 platform/x86: asus-wmi: Tell the EC the OS will handle the display off hotkey
date:   3 months ago
config: ia64-allmodconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 8.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 78f3ac76d9e5219589718b9e4733bee21627b3f5
        # save the attached .config to linux build tree
        GCC_VERSION=8.2.0 make.cross ARCH=ia64 

All errors (new ones prefixed by >>):

   ERROR: "ia64_delay_loop" [drivers/spi/spi-thunderx.ko] undefined!
   ERROR: "numa_slit" [drivers/nvme/host/nvme-core.ko] undefined!
>> ERROR: "__sw_hweight8" [drivers/net/wireless/mediatek/mt76/mt76.ko] undefined!
>> ERROR: "ia64_delay_loop" [drivers/net/phy/mdio-cavium.ko] undefined!

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