Re: [PATCH v2] 8250-men-mcb: add support for 16z025 and 16z057
From: kbuild test robot
Date: Fri Mar 02 2018 - 23:53:00 EST
Hi Michael,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on tty/tty-testing]
[also build test ERROR on v4.16-rc3 next-20180302]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Michael-Moese/8250-men-mcb-add-support-for-16z025-and-16z057/20180303-104548
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
config: sparc64-allyesconfig (attached as .config)
compiler: sparc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=sparc64
All errors (new ones prefixed by >>):
drivers/tty/serial/8250/8250_men_mcb.c: In function 'get_num_ports':
>> drivers/tty/serial/8250/8250_men_mcb.c:59:10: error: implicit declaration of function 'readb' [-Werror=implicit-function-declaration]
return readb(membase) >> 4;
^~~~~
cc1: some warnings being treated as errors
vim +/readb +59 drivers/tty/serial/8250/8250_men_mcb.c
51
52 static unsigned int get_num_ports(struct mcb_device *mdev,
53 void __iomem *membase)
54 {
55 switch (mdev->id) {
56 case MEN_UART_ID_Z125:
57 return 1U;
58 case MEN_UART_ID_Z025:
> 59 return readb(membase) >> 4;
60 case MEN_UART_ID_Z057:
61 return 4U;
62 default:
63 dev_err(&mdev->dev, "no supported device!\n");
64 return -ENODEV;
65 }
66 }
67
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