linux-kernel - ERROR: "rational_best_approximation" [drivers/tty/serial/8250/8250

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Message-ID: <201511220830.K0aXF1Tj%fengguang.wu@intel.com>
Date:	Sun, 22 Nov 2015 08:14:32 +0800
From:	kbuild test robot <fengguang.wu@...el.com>
To:	Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Cc:	kbuild-all@...org, linux-kernel@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: ERROR: "rational_best_approximation"
 [drivers/tty/serial/8250/8250_mid.ko] undefined!

Hi Heikki,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   707b4f493e77638387f29d5ea35e383c418e710d
commit: d9eda9bab237259b06690652b145d19e0ce37a77 serial: 8250_pci: Intel MID UART support to its own driver
date:   5 weeks ago
config: x86_64-randconfig-x011-11220649 (attached as .config)
reproduce:
        git checkout d9eda9bab237259b06690652b145d19e0ce37a77
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

>> ERROR: "rational_best_approximation" [drivers/tty/serial/8250/8250_mid.ko] undefined!

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Download attachment ".config.gz" of type "application/octet-stream" (20589 bytes)