Re: [PATCH] i2c: mux: remove duplicated i2c_algorithm

From: kbuild test robot
Date: Wed Sep 26 2018 - 13:53:06 EST


Hi Luca,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.19-rc5 next-20180926]
[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/Luca-Ceresoli/i2c-mux-remove-duplicated-i2c_algorithm/20180926-200605
config: x86_64-randconfig-u0-09270057 (attached as .config)
compiler: gcc-5 (Debian 5.5.0-3) 5.4.1 20171010
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

All errors (new ones prefixed by >>):

In file included from drivers/i2c/muxes/i2c-mux-ltc4306.c:15:0:
>> include/linux/i2c-mux.h:39:23: error: field 'algo' has incomplete type
struct i2c_algorithm algo;
^

vim +/algo +39 include/linux/i2c-mux.h

31
32 struct i2c_mux_core {
33 struct i2c_adapter *parent;
34 struct device *dev;
35 unsigned int mux_locked:1;
36 unsigned int arbitrator:1;
37 unsigned int gate:1;
38
> 39 struct i2c_algorithm algo;
40 void *priv;
41
42 int (*select)(struct i2c_mux_core *, u32 chan_id);
43 int (*deselect)(struct i2c_mux_core *, u32 chan_id);
44
45 int num_adapters;
46 int max_adapters;
47 struct i2c_adapter *adapter[0];
48 };
49

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