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Date:   Tue, 14 Jan 2020 12:44:42 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     kbuild-all@...ts.01.org, netdev@...r.kernel.org, cphealy@...il.com,
        rmk+kernel@...linux.org.uk, kuba@...nel.org,
        Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next] net: phy: Maintain MDIO device and bus
 statistics

Hi Florian,

I love your patch! Yet something to improve:

[auto build test ERROR on net-next/master]
[also build test ERROR on net/master linus/master ipvs/master v5.5-rc6 next-20200110]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Florian-Fainelli/net-phy-Maintain-MDIO-device-and-bus-statistics/20200113-125529
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 5c9166f038257d6130865b267cb45d87f126b3dd
config: x86_64-lkp (attached as .config)
compiler: gcc-7 (Debian 7.5.0-3) 7.5.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>

All error/warnings (new ones prefixed by >>):

   drivers/net/phy/mdio_bus.c: In function 'mdio_bus_stats_transfers_show':
   drivers/net/phy/mdio_bus.c:305:32: error: pasting ""%llu"" and ""\n"" does not give a valid preprocessing token
    MDIO_BUS_STATS_SHOW(transfers, "%llu");
                                   ^
   drivers/net/phy/mdio_bus.c:296:21: note: in definition of macro 'MDIO_BUS_STATS_SHOW_NAME'
     len = sprintf(buf, format_string ## "\n", tmp);   \
                        ^~~~~~~~~~~~~
>> drivers/net/phy/mdio_bus.c:305:1: note: in expansion of macro 'MDIO_BUS_STATS_SHOW'
    MDIO_BUS_STATS_SHOW(transfers, "%llu");
    ^~~~~~~~~~~~~~~~~~~
   drivers/net/phy/mdio_bus.c: In function 'mdio_bus_stats_errors_show':
   drivers/net/phy/mdio_bus.c:306:29: error: pasting ""%llu"" and ""\n"" does not give a valid preprocessing token
    MDIO_BUS_STATS_SHOW(errors, "%llu");
                                ^
   drivers/net/phy/mdio_bus.c:296:21: note: in definition of macro 'MDIO_BUS_STATS_SHOW_NAME'
     len = sprintf(buf, format_string ## "\n", tmp);   \
                        ^~~~~~~~~~~~~
   drivers/net/phy/mdio_bus.c:306:1: note: in expansion of macro 'MDIO_BUS_STATS_SHOW'
    MDIO_BUS_STATS_SHOW(errors, "%llu");
    ^~~~~~~~~~~~~~~~~~~
   drivers/net/phy/mdio_bus.c: In function 'mdio_bus_stats_writes_show':
   drivers/net/phy/mdio_bus.c:307:29: error: pasting ""%llu"" and ""\n"" does not give a valid preprocessing token
    MDIO_BUS_STATS_SHOW(writes, "%llu");
                                ^
   drivers/net/phy/mdio_bus.c:296:21: note: in definition of macro 'MDIO_BUS_STATS_SHOW_NAME'
     len = sprintf(buf, format_string ## "\n", tmp);   \
                        ^~~~~~~~~~~~~
   drivers/net/phy/mdio_bus.c:307:1: note: in expansion of macro 'MDIO_BUS_STATS_SHOW'
    MDIO_BUS_STATS_SHOW(writes, "%llu");
    ^~~~~~~~~~~~~~~~~~~
   drivers/net/phy/mdio_bus.c: In function 'mdio_bus_stats_reads_show':
   drivers/net/phy/mdio_bus.c:308:28: error: pasting ""%llu"" and ""\n"" does not give a valid preprocessing token
    MDIO_BUS_STATS_SHOW(reads, "%llu");
                               ^
   drivers/net/phy/mdio_bus.c:296:21: note: in definition of macro 'MDIO_BUS_STATS_SHOW_NAME'
     len = sprintf(buf, format_string ## "\n", tmp);   \
                        ^~~~~~~~~~~~~
   drivers/net/phy/mdio_bus.c:308:1: note: in expansion of macro 'MDIO_BUS_STATS_SHOW'
    MDIO_BUS_STATS_SHOW(reads, "%llu");
    ^~~~~~~~~~~~~~~~~~~

vim +305 drivers/net/phy/mdio_bus.c

   300	
   301	#define MDIO_BUS_STATS_SHOW(field, format_string)			\
   302		MDIO_BUS_STATS_SHOW_NAME(field, __stringify(field),		\
   303					      field, format_string)
   304	
 > 305	MDIO_BUS_STATS_SHOW(transfers, "%llu");
   306	MDIO_BUS_STATS_SHOW(errors, "%llu");
   307	MDIO_BUS_STATS_SHOW(writes, "%llu");
   308	MDIO_BUS_STATS_SHOW(reads, "%llu");
   309	

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation

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